working on sirius 1 firmware

2025-10-31 11:26:46 -07:00 · 2022-11-10 10:05:14 +00:00
parent da4c92cd85
commit 053f6701d2
12 changed files with 995 additions and 928 deletions
--- a/captures/sirius
+++ b/captures/sirius
--- a/1/MDK-ARM/my_adb.uvguix.allen
+++ b/1/MDK-ARM/my_adb.uvguix.allen
@@ -93,8 +93,8 @@
      <flags>2</flags>
      <showCmd>3</showCmd>
      <MinPosition>
-        <xPos>-1</xPos>
-        <yPos>-1</yPos>
+        <xPos>-32000</xPos>
+        <yPos>-32000</yPos>
      </MinPosition>
      <MaxPosition>
        <xPos>-1</xPos>
@@ -3607,8 +3607,8 @@
      <Doc>
        <Name>../Src/main.c</Name>
        <ColumnNumber>0</ColumnNumber>
-        <TopLine>205</TopLine>
-        <CurrentLine>206</CurrentLine>
+        <TopLine>201</TopLine>
+        <CurrentLine>202</CurrentLine>
        <Folding>1</Folding>
        <ContractedFolders></ContractedFolders>
        <PaneID>0</PaneID>
--- a/1/MDK-ARM/my_adb/main.crf
+++ b/1/MDK-ARM/my_adb/main.crf
--- a/1/MDK-ARM/my_adb/main.o
+++ b/1/MDK-ARM/my_adb/main.o
--- a/1/MDK-ARM/my_adb/my_adb.axf
+++ b/1/MDK-ARM/my_adb/my_adb.axf
--- a/1/MDK-ARM/my_adb/my_adb.build_log.htm
+++ b/1/MDK-ARM/my_adb/my_adb.build_log.htm
@@ -28,15 +28,15 @@ Project File Date:  11/09/2022
 *** Using Compiler 'V5.06 update 6 (build 750)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
 Build target 'my_adb'
 compiling main.c...
-../Src/main.c(209): warning:  #111-D: statement is unreachable
+../Src/main.c(208): warning:  #185-D: dynamic initialization in unreachable code
+    uint32_t entry_time = HAL_GetTick();
+../Src/main.c(216): warning:  #111-D: statement is unreachable
    return KB_WRITE_ERROR;
-../Src/main.c(214): warning:  #188-D: enumerated type mixed with another type
-    HAL_GPIO_WritePin(KBDATA_GPIO_Port, KBDATA_Pin, value);
-../Src/main.c(221): warning:  #940-D: missing return statement at end of non-void function "SendBit" 
-  }
+../Src/main.c(221): warning:  #188-D: enumerated type mixed with another type
+    HAL_GPIO_WritePin(KBDATA_GPIO_Port, KBDATA_Pin, bit);
 ../Src/main.c: 3 warnings, 0 errors
 linking...
-Program Size: Code=7812 RO-data=308 RW-data=32 ZI-data=1904  
+Program Size: Code=7840 RO-data=308 RW-data=32 ZI-data=1904  
 FromELF: creating hex file...
 "my_adb\my_adb.axf" - 0 Error(s), 3 Warning(s).

--- a/1/MDK-ARM/my_adb/my_adb.hex
+++ b/1/MDK-ARM/my_adb/my_adb.hex
@@ -1,36 +1,36 @@
 :020000040800F2
-:1000000090070020D500000855120008ED100008E8
+:1000000090070020D500000849120008E110000800
 :1000100000000000000000000000000000000000E0
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+:10002000000000000000000000000000871500082C
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+:1000A0000000000095120008050100080501000885
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-:10019000B442F7D3FFF798FF981F0008B81F000874
+:10019000B442F7D3FFF798FFB41F0008D41F00083C
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@@ -51,463 +51,465 @@
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 :00000001FF
--- a/1/MDK-ARM/my_adb/my_adb.htm
+++ b/1/MDK-ARM/my_adb/my_adb.htm
@@ -3,7 +3,7 @@
 <title>Static Call Graph - [my_adb\my_adb.axf]</title></head>
 <body><HR>
 <H1>Static Call Graph for image my_adb\my_adb.axf</H1><HR>
-<BR><P>#&#060CALLGRAPH&#062# ARM Linker, 5060750: Last Updated: Wed Nov 09 23:43:47 2022
+<BR><P>#&#060CALLGRAPH&#062# ARM Linker, 5060750: Last Updated: Thu Nov 10 09:59:00 2022
 <BR><P>
 <H3>Maximum Stack Usage =        180 bytes + Unknown(Cycles, Untraceable Function Pointers)</H3><H3>
 Call chain for Maximum Stack Depth:</H3>
@@ -68,7 +68,7 @@ Global Symbols
 <P><STRONG><a name="[23]"></a>__main</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry.o(.ARM.Collect$$$$00000000))
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f042x6.o(.text)
 </UL>
-<P><STRONG><a name="[7b]"></a>_main_stk</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry2.o(.ARM.Collect$$$$00000001))
+<P><STRONG><a name="[7c]"></a>_main_stk</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry2.o(.ARM.Collect$$$$00000001))

 <P><STRONG><a name="[2a]"></a>_main_scatterload</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry5.o(.ARM.Collect$$$$00000004))
 <BR><BR>[Calls]<UL><LI><a href="#[2b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__scatterload
@@ -78,15 +78,15 @@ Global Symbols
 <BR><BR>[Called By]<UL><LI><a href="#[2b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__scatterload
 </UL>

-<P><STRONG><a name="[7c]"></a>_main_clock</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry7b.o(.ARM.Collect$$$$00000008))
+<P><STRONG><a name="[7d]"></a>_main_clock</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry7b.o(.ARM.Collect$$$$00000008))

-<P><STRONG><a name="[7d]"></a>_main_cpp_init</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry8b.o(.ARM.Collect$$$$0000000A))
+<P><STRONG><a name="[7e]"></a>_main_cpp_init</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry8b.o(.ARM.Collect$$$$0000000A))

-<P><STRONG><a name="[7e]"></a>_main_init</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry9a.o(.ARM.Collect$$$$0000000B))
+<P><STRONG><a name="[7f]"></a>_main_init</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry9a.o(.ARM.Collect$$$$0000000B))

-<P><STRONG><a name="[7f]"></a>__rt_final_cpp</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry10a.o(.ARM.Collect$$$$0000000D))
+<P><STRONG><a name="[80]"></a>__rt_final_cpp</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry10a.o(.ARM.Collect$$$$0000000D))

-<P><STRONG><a name="[80]"></a>__rt_final_exit</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry11a.o(.ARM.Collect$$$$0000000F))
+<P><STRONG><a name="[81]"></a>__rt_final_exit</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry11a.o(.ARM.Collect$$$$0000000F))

 <P><STRONG><a name="[0]"></a>Reset_Handler</STRONG> (Thumb, 38 bytes, Stack size 0 bytes, startup_stm32f042x6.o(.text))
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f042x6.o(RESET)
@@ -173,16 +173,16 @@ Global Symbols
 <P><STRONG><a name="[6]"></a>WWDG_IRQHandler</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f042x6.o(.text))
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f042x6.o(RESET)
 </UL>
-<P><STRONG><a name="[81]"></a>__aeabi_uidiv</STRONG> (Thumb, 0 bytes, Stack size 12 bytes, uidiv.o(.text), UNUSED)
+<P><STRONG><a name="[82]"></a>__aeabi_uidiv</STRONG> (Thumb, 0 bytes, Stack size 12 bytes, uidiv.o(.text), UNUSED)

 <P><STRONG><a name="[3b]"></a>__aeabi_uidivmod</STRONG> (Thumb, 44 bytes, Stack size 12 bytes, uidiv.o(.text))
 <BR><BR>[Stack]<UL><LI>Max Depth = 12<LI>Call Chain = __aeabi_uidivmod
 </UL>
-<BR>[Called By]<UL><LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<BR>[Called By]<UL><LI><a href="#[65]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 <LI><a href="#[38]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_InitTick
 <LI><a href="#[40]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_GetSysClockFreq
 <LI><a href="#[34]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;UART_SetConfig
-<LI><a href="#[6b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_printf_core
+<LI><a href="#[69]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_printf_core
 </UL>

 <P><STRONG><a name="[2d]"></a>__aeabi_memset</STRONG> (Thumb, 14 bytes, Stack size 0 bytes, memseta.o(.text))
@@ -190,14 +190,14 @@ Global Symbols
 <LI><a href="#[2c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_memclr
 </UL>

-<P><STRONG><a name="[82]"></a>__aeabi_memset4</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, memseta.o(.text), UNUSED)
+<P><STRONG><a name="[83]"></a>__aeabi_memset4</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, memseta.o(.text), UNUSED)

-<P><STRONG><a name="[83]"></a>__aeabi_memset8</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, memseta.o(.text), UNUSED)
+<P><STRONG><a name="[84]"></a>__aeabi_memset8</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, memseta.o(.text), UNUSED)

 <P><STRONG><a name="[2c]"></a>__aeabi_memclr</STRONG> (Thumb, 4 bytes, Stack size 0 bytes, memseta.o(.text))
 <BR><BR>[Calls]<UL><LI><a href="#[2d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_memset
 </UL>
-<BR>[Called By]<UL><LI><a href="#[72]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_reset
+<BR>[Called By]<UL><LI><a href="#[71]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_reset
 </UL>

 <P><STRONG><a name="[4c]"></a>__aeabi_memclr4</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, memseta.o(.text))
@@ -205,7 +205,7 @@ Global Symbols
 <LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_SPI_TxRxCpltCallback
 </UL>

-<P><STRONG><a name="[84]"></a>__aeabi_memclr8</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, memseta.o(.text), UNUSED)
+<P><STRONG><a name="[85]"></a>__aeabi_memclr8</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, memseta.o(.text), UNUSED)

 <P><STRONG><a name="[2e]"></a>_memset$wrapper</STRONG> (Thumb, 18 bytes, Stack size 8 bytes, memseta.o(.text), UNUSED)
 <BR><BR>[Calls]<UL><LI><a href="#[2d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_memset
@@ -217,7 +217,7 @@ Global Symbols
 <BR>[Called By]<UL><LI><a href="#[2a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_main_scatterload
 </UL>

-<P><STRONG><a name="[85]"></a>__scatterload_rt2</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, init.o(.text), UNUSED)
+<P><STRONG><a name="[86]"></a>__scatterload_rt2</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, init.o(.text), UNUSED)

 <P><STRONG><a name="[43]"></a>HAL_DMA_Abort_IT</STRONG> (Thumb, 72 bytes, Stack size 16 bytes, stm32f0xx_hal_dma.o(i.HAL_DMA_Abort_IT))
 <BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = HAL_DMA_Abort_IT
@@ -230,7 +230,7 @@ Global Symbols
 </UL>
 <BR>[Calls]<UL><LI><a href="#[31]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
 </UL>
-<BR>[Called By]<UL><LI><a href="#[75]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;spi_error_dump_reboot
+<BR>[Called By]<UL><LI><a href="#[74]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;spi_error_dump_reboot
 </UL>

 <P><STRONG><a name="[47]"></a>HAL_GPIO_Init</STRONG> (Thumb, 294 bytes, Stack size 24 bytes, stm32f0xx_hal_gpio.o(i.HAL_GPIO_Init))
@@ -241,17 +241,14 @@ Global Symbols
 <LI><a href="#[5a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MX_GPIO_Init
 </UL>

-<P><STRONG><a name="[7a]"></a>HAL_GPIO_ReadPin</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, stm32f0xx_hal_gpio.o(i.HAL_GPIO_ReadPin))
-<BR><BR>[Called By]<UL><LI><a href="#[78]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;wait_for_KBACK
-</UL>
-
-<P><STRONG><a name="[79]"></a>HAL_GPIO_TogglePin</STRONG> (Thumb, 8 bytes, Stack size 0 bytes, stm32f0xx_hal_gpio.o(i.HAL_GPIO_TogglePin))
-<BR><BR>[Called By]<UL><LI><a href="#[75]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;spi_error_dump_reboot
+<P><STRONG><a name="[7b]"></a>HAL_GPIO_TogglePin</STRONG> (Thumb, 8 bytes, Stack size 0 bytes, stm32f0xx_hal_gpio.o(i.HAL_GPIO_TogglePin))
+<BR><BR>[Called By]<UL><LI><a href="#[74]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;spi_error_dump_reboot
 </UL>

 <P><STRONG><a name="[4a]"></a>HAL_GPIO_WritePin</STRONG> (Thumb, 12 bytes, Stack size 0 bytes, stm32f0xx_hal_gpio.o(i.HAL_GPIO_WritePin))
-<BR><BR>[Called By]<UL><LI><a href="#[21]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
-<LI><a href="#[64]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SendBit
+<BR><BR>[Called By]<UL><LI><a href="#[7a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;write_bit
+<LI><a href="#[78]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;release_kb_line
+<LI><a href="#[21]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 <LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_SPI_TxRxCpltCallback
 <LI><a href="#[5a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MX_GPIO_Init
 </UL>
@@ -264,7 +261,6 @@ Global Symbols
 <LI><a href="#[41]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_OscConfig
 <LI><a href="#[3f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_ClockConfig
 <LI><a href="#[30]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_Delay
-<LI><a href="#[78]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;wait_for_KBACK
 <LI><a href="#[21]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 <LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_SPI_TxRxCpltCallback
 <LI><a href="#[59]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;UART_WaitOnFlagUntilTimeout
@@ -282,7 +278,7 @@ Global Symbols
 <BR>[Called By]<UL><LI><a href="#[5e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MX_USART2_UART_Init
 </UL>

-<P><STRONG><a name="[66]"></a>HAL_IncTick</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, stm32f0xx_hal.o(i.HAL_IncTick))
+<P><STRONG><a name="[64]"></a>HAL_IncTick</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, stm32f0xx_hal.o(i.HAL_IncTick))
 <BR><BR>[Called By]<UL><LI><a href="#[5]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SysTick_Handler
 </UL>

@@ -326,7 +322,7 @@ Global Symbols
 </UL>
 <BR>[Called By]<UL><LI><a href="#[46]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_SPI_MspInit
 <LI><a href="#[39]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_MspInit
-<LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<LI><a href="#[65]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 <LI><a href="#[38]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_InitTick
 </UL>

@@ -337,15 +333,15 @@ Global Symbols
 <LI><a href="#[38]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_InitTick
 <LI><a href="#[40]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_GetSysClockFreq
 </UL>
-<BR>[Called By]<UL><LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<BR>[Called By]<UL><LI><a href="#[65]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 </UL>

 <P><STRONG><a name="[3a]"></a>HAL_RCC_GetHCLKFreq</STRONG> (Thumb, 6 bytes, Stack size 0 bytes, stm32f0xx_hal_rcc.o(i.HAL_RCC_GetHCLKFreq))
-<BR><BR>[Called By]<UL><LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<BR><BR>[Called By]<UL><LI><a href="#[65]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 <LI><a href="#[38]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_InitTick
 </UL>

-<P><STRONG><a name="[69]"></a>HAL_RCC_GetPCLK1Freq</STRONG> (Thumb, 20 bytes, Stack size 0 bytes, stm32f0xx_hal_rcc.o(i.HAL_RCC_GetPCLK1Freq))
+<P><STRONG><a name="[67]"></a>HAL_RCC_GetPCLK1Freq</STRONG> (Thumb, 20 bytes, Stack size 0 bytes, stm32f0xx_hal_rcc.o(i.HAL_RCC_GetPCLK1Freq))
 <BR><BR>[Called By]<UL><LI><a href="#[34]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;UART_SetConfig
 </UL>

@@ -363,7 +359,7 @@ Global Symbols
 </UL>
 <BR>[Calls]<UL><LI><a href="#[31]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
 </UL>
-<BR>[Called By]<UL><LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<BR>[Called By]<UL><LI><a href="#[65]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 </UL>

 <P><STRONG><a name="[44]"></a>HAL_SPI_ErrorCallback</STRONG> (Thumb, 2 bytes, Stack size 0 bytes, stm32f0xx_hal_spi.o(i.HAL_SPI_ErrorCallback))
@@ -422,8 +418,8 @@ Global Symbols
 <BR>[Called By]<UL><LI><a href="#[5f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SPI_CloseRxTx_ISR
 </UL>

-<P><STRONG><a name="[68]"></a>HAL_SYSTICK_CLKSourceConfig</STRONG> (Thumb, 20 bytes, Stack size 0 bytes, stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_CLKSourceConfig))
-<BR><BR>[Called By]<UL><LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<P><STRONG><a name="[66]"></a>HAL_SYSTICK_CLKSourceConfig</STRONG> (Thumb, 20 bytes, Stack size 0 bytes, stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_CLKSourceConfig))
+<BR><BR>[Called By]<UL><LI><a href="#[65]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 </UL>

 <P><STRONG><a name="[4f]"></a>HAL_SYSTICK_Callback</STRONG> (Thumb, 2 bytes, Stack size 0 bytes, stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_Callback))
@@ -435,7 +431,7 @@ Global Symbols
 </UL>
 <BR>[Calls]<UL><LI><a href="#[3e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;NVIC_SetPriority
 </UL>
-<BR>[Called By]<UL><LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<BR>[Called By]<UL><LI><a href="#[65]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 <LI><a href="#[38]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_InitTick
 </UL>

@@ -468,8 +464,8 @@ Global Symbols
 <BR>[Called By]<UL><LI><a href="#[50]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIM_Base_Init
 </UL>

-<P><STRONG><a name="[6e]"></a>HAL_TIM_Base_Start</STRONG> (Thumb, 24 bytes, Stack size 0 bytes, stm32f0xx_hal_tim.o(i.HAL_TIM_Base_Start))
-<BR><BR>[Called By]<UL><LI><a href="#[6d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;delay_us_init
+<P><STRONG><a name="[6d]"></a>HAL_TIM_Base_Start</STRONG> (Thumb, 24 bytes, Stack size 0 bytes, stm32f0xx_hal_tim.o(i.HAL_TIM_Base_Start))
+<BR><BR>[Called By]<UL><LI><a href="#[6c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;delay_us_init
 </UL>

 <P><STRONG><a name="[53]"></a>HAL_TIM_ConfigClockSource</STRONG> (Thumb, 238 bytes, Stack size 24 bytes, stm32f0xx_hal_tim.o(i.HAL_TIM_ConfigClockSource))
@@ -523,28 +519,19 @@ Global Symbols
 <P><STRONG><a name="[3]"></a>SVC_Handler</STRONG> (Thumb, 2 bytes, Stack size 0 bytes, stm32f0xx_it.o(i.SVC_Handler))
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f042x6.o(RESET)
 </UL>
-<P><STRONG><a name="[64]"></a>SendBit</STRONG> (Thumb, 54 bytes, Stack size 16 bytes, main.o(i.SendBit))
-<BR><BR>[Stack]<UL><LI>Max Depth = 20<LI>Call Chain = SendBit &rArr; delay_us
-</UL>
-<BR>[Calls]<UL><LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GPIO_WritePin
-<LI><a href="#[65]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;delay_us
-</UL>
-<BR>[Called By]<UL><LI><a href="#[21]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
-</UL>
-
 <P><STRONG><a name="[5]"></a>SysTick_Handler</STRONG> (Thumb, 12 bytes, Stack size 8 bytes, stm32f0xx_it.o(i.SysTick_Handler))
 <BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = SysTick_Handler &rArr; HAL_SYSTICK_IRQHandler
 </UL>
 <BR>[Calls]<UL><LI><a href="#[4e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_SYSTICK_IRQHandler
-<LI><a href="#[66]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_IncTick
+<LI><a href="#[64]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_IncTick
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f042x6.o(RESET)
 </UL>
-<P><STRONG><a name="[67]"></a>SystemClock_Config</STRONG> (Thumb, 90 bytes, Stack size 80 bytes, main.o(i.SystemClock_Config))
+<P><STRONG><a name="[65]"></a>SystemClock_Config</STRONG> (Thumb, 90 bytes, Stack size 80 bytes, main.o(i.SystemClock_Config))
 <BR><BR>[Stack]<UL><LI>Max Depth = 164<LI>Call Chain = SystemClock_Config &rArr; HAL_RCC_ClockConfig &rArr; HAL_RCC_GetSysClockFreq &rArr; __aeabi_uidivmod
 </UL>
 <BR>[Calls]<UL><LI><a href="#[3c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_SYSTICK_Config
-<LI><a href="#[68]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_SYSTICK_CLKSourceConfig
+<LI><a href="#[66]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_SYSTICK_CLKSourceConfig
 <LI><a href="#[41]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_OscConfig
 <LI><a href="#[3a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_GetHCLKFreq
 <LI><a href="#[3f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_ClockConfig
@@ -588,7 +575,7 @@ Global Symbols
 <BR><BR>[Stack]<UL><LI>Max Depth = 84<LI>Call Chain = UART_SetConfig &rArr; HAL_RCC_GetSysClockFreq &rArr; __aeabi_uidivmod
 </UL>
 <BR>[Calls]<UL><LI><a href="#[40]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_GetSysClockFreq
-<LI><a href="#[69]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_GetPCLK1Freq
+<LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_RCC_GetPCLK1Freq
 <LI><a href="#[3b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_uidivmod
 </UL>
 <BR>[Called By]<UL><LI><a href="#[32]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_HalfDuplex_Init
@@ -603,37 +590,37 @@ Global Symbols
 <LI><a href="#[36]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;UART_CheckIdleState
 </UL>

-<P><STRONG><a name="[6a]"></a>__0printf$3</STRONG> (Thumb, 24 bytes, Stack size 24 bytes, printf3.o(i.__0printf$3), UNUSED)
-<BR><BR>[Calls]<UL><LI><a href="#[6b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_printf_core
+<P><STRONG><a name="[68]"></a>__0printf$3</STRONG> (Thumb, 24 bytes, Stack size 24 bytes, printf3.o(i.__0printf$3), UNUSED)
+<BR><BR>[Calls]<UL><LI><a href="#[69]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_printf_core
 </UL>

-<P><STRONG><a name="[86]"></a>__1printf$3</STRONG> (Thumb, 0 bytes, Stack size 24 bytes, printf3.o(i.__0printf$3), UNUSED)
+<P><STRONG><a name="[87]"></a>__1printf$3</STRONG> (Thumb, 0 bytes, Stack size 24 bytes, printf3.o(i.__0printf$3), UNUSED)

-<P><STRONG><a name="[73]"></a>__2printf</STRONG> (Thumb, 0 bytes, Stack size 24 bytes, printf3.o(i.__0printf$3))
+<P><STRONG><a name="[72]"></a>__2printf</STRONG> (Thumb, 0 bytes, Stack size 24 bytes, printf3.o(i.__0printf$3))
 <BR><BR>[Stack]<UL><LI>Max Depth = 24<LI>Call Chain = __2printf
 </UL>
-<BR>[Called By]<UL><LI><a href="#[75]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;spi_error_dump_reboot
+<BR>[Called By]<UL><LI><a href="#[74]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;spi_error_dump_reboot
 <LI><a href="#[21]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>

-<P><STRONG><a name="[87]"></a>__scatterload_copy</STRONG> (Thumb, 14 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_copy), UNUSED)
+<P><STRONG><a name="[88]"></a>__scatterload_copy</STRONG> (Thumb, 14 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_copy), UNUSED)

-<P><STRONG><a name="[88]"></a>__scatterload_null</STRONG> (Thumb, 2 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_null), UNUSED)
+<P><STRONG><a name="[89]"></a>__scatterload_null</STRONG> (Thumb, 2 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_null), UNUSED)

-<P><STRONG><a name="[89]"></a>__scatterload_zeroinit</STRONG> (Thumb, 14 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_zeroinit), UNUSED)
+<P><STRONG><a name="[8a]"></a>__scatterload_zeroinit</STRONG> (Thumb, 14 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_zeroinit), UNUSED)

-<P><STRONG><a name="[65]"></a>delay_us</STRONG> (Thumb, 20 bytes, Stack size 4 bytes, delay_us.o(i.delay_us))
+<P><STRONG><a name="[6a]"></a>delay_us</STRONG> (Thumb, 20 bytes, Stack size 4 bytes, delay_us.o(i.delay_us))
 <BR><BR>[Stack]<UL><LI>Max Depth = 4<LI>Call Chain = delay_us
 </UL>
-<BR>[Calls]<UL><LI><a href="#[6c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;micros
+<BR>[Calls]<UL><LI><a href="#[6b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;micros
 </UL>
-<BR>[Called By]<UL><LI><a href="#[64]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SendBit
+<BR>[Called By]<UL><LI><a href="#[7a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;write_bit
 </UL>

-<P><STRONG><a name="[6d]"></a>delay_us_init</STRONG> (Thumb, 12 bytes, Stack size 8 bytes, delay_us.o(i.delay_us_init))
+<P><STRONG><a name="[6c]"></a>delay_us_init</STRONG> (Thumb, 12 bytes, Stack size 8 bytes, delay_us.o(i.delay_us_init))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = delay_us_init
 </UL>
-<BR>[Calls]<UL><LI><a href="#[6e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIM_Base_Start
+<BR>[Calls]<UL><LI><a href="#[6d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_TIM_Base_Start
 </UL>
 <BR>[Called By]<UL><LI><a href="#[21]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>
@@ -645,28 +632,32 @@ Global Symbols
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> printf3.o(i.__0printf$3)
 </UL>
+<P><STRONG><a name="[79]"></a>get_bit</STRONG> (Thumb, 16 bytes, Stack size 0 bytes, main.o(i.get_bit))
+<BR><BR>[Called By]<UL><LI><a href="#[76]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;send_key
+</UL>
+
 <P><STRONG><a name="[4b]"></a>kb_buf_add</STRONG> (Thumb, 44 bytes, Stack size 8 bytes, helpers.o(i.kb_buf_add))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = kb_buf_add
 </UL>
-<BR>[Calls]<UL><LI><a href="#[6f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_is_full
+<BR>[Calls]<UL><LI><a href="#[6e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_is_full
 </UL>
 <BR>[Called By]<UL><LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_SPI_TxRxCpltCallback
 </UL>

-<P><STRONG><a name="[70]"></a>kb_buf_init</STRONG> (Thumb, 28 bytes, Stack size 8 bytes, helpers.o(i.kb_buf_init))
+<P><STRONG><a name="[6f]"></a>kb_buf_init</STRONG> (Thumb, 28 bytes, Stack size 8 bytes, helpers.o(i.kb_buf_init))
 <BR><BR>[Stack]<UL><LI>Max Depth = 28<LI>Call Chain = kb_buf_init &rArr; malloc
 </UL>
-<BR>[Calls]<UL><LI><a href="#[72]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_reset
-<LI><a href="#[71]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;malloc
+<BR>[Calls]<UL><LI><a href="#[71]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_reset
+<LI><a href="#[70]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;malloc
 </UL>
 <BR>[Called By]<UL><LI><a href="#[21]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>

-<P><STRONG><a name="[6f]"></a>kb_buf_is_full</STRONG> (Thumb, 22 bytes, Stack size 0 bytes, helpers.o(i.kb_buf_is_full))
+<P><STRONG><a name="[6e]"></a>kb_buf_is_full</STRONG> (Thumb, 22 bytes, Stack size 0 bytes, helpers.o(i.kb_buf_is_full))
 <BR><BR>[Called By]<UL><LI><a href="#[4b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_add
 </UL>

-<P><STRONG><a name="[76]"></a>kb_buf_peek</STRONG> (Thumb, 32 bytes, Stack size 8 bytes, helpers.o(i.kb_buf_peek))
+<P><STRONG><a name="[75]"></a>kb_buf_peek</STRONG> (Thumb, 32 bytes, Stack size 8 bytes, helpers.o(i.kb_buf_peek))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = kb_buf_peek
 </UL>
 <BR>[Called By]<UL><LI><a href="#[21]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
@@ -676,71 +667,88 @@ Global Symbols
 <BR><BR>[Called By]<UL><LI><a href="#[21]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>

-<P><STRONG><a name="[72]"></a>kb_buf_reset</STRONG> (Thumb, 28 bytes, Stack size 8 bytes, helpers.o(i.kb_buf_reset))
+<P><STRONG><a name="[71]"></a>kb_buf_reset</STRONG> (Thumb, 28 bytes, Stack size 8 bytes, helpers.o(i.kb_buf_reset))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = kb_buf_reset
 </UL>
 <BR>[Calls]<UL><LI><a href="#[2c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_memclr
 </UL>
-<BR>[Called By]<UL><LI><a href="#[70]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_init
+<BR>[Called By]<UL><LI><a href="#[6f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_init
 </UL>

-<P><STRONG><a name="[21]"></a>main</STRONG> (Thumb, 168 bytes, Stack size 16 bytes, main.o(i.main))
+<P><STRONG><a name="[21]"></a>main</STRONG> (Thumb, 160 bytes, Stack size 16 bytes, main.o(i.main))
 <BR><BR>[Stack]<UL><LI>Max Depth = 180<LI>Call Chain = main &rArr; SystemClock_Config &rArr; HAL_RCC_ClockConfig &rArr; HAL_RCC_GetSysClockFreq &rArr; __aeabi_uidivmod
 </UL>
 <BR>[Calls]<UL><LI><a href="#[4d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_SPI_TransmitReceive_IT
 <LI><a href="#[37]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_Init
 <LI><a href="#[31]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
 <LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GPIO_WritePin
-<LI><a href="#[78]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;wait_for_KBACK
-<LI><a href="#[75]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;spi_error_dump_reboot
-<LI><a href="#[74]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;protocol_status_lookup_init
-<LI><a href="#[67]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
-<LI><a href="#[64]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SendBit
+<LI><a href="#[74]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;spi_error_dump_reboot
+<LI><a href="#[76]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;send_key
+<LI><a href="#[73]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;protocol_status_lookup_init
+<LI><a href="#[65]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 <LI><a href="#[5e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MX_USART2_UART_Init
 <LI><a href="#[5c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MX_TIM2_Init
 <LI><a href="#[5b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MX_SPI1_Init
 <LI><a href="#[5a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;MX_GPIO_Init
 <LI><a href="#[77]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_pop
-<LI><a href="#[76]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_peek
-<LI><a href="#[70]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_init
-<LI><a href="#[6d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;delay_us_init
-<LI><a href="#[73]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__2printf
+<LI><a href="#[75]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_peek
+<LI><a href="#[6f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_init
+<LI><a href="#[6c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;delay_us_init
+<LI><a href="#[72]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__2printf
 <LI><a href="#[4c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_memclr4
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> entry9a.o(.ARM.Collect$$$$0000000B)
 </UL>
-<P><STRONG><a name="[71]"></a>malloc</STRONG> (Thumb, 92 bytes, Stack size 20 bytes, malloc.o(i.malloc))
+<P><STRONG><a name="[70]"></a>malloc</STRONG> (Thumb, 92 bytes, Stack size 20 bytes, malloc.o(i.malloc))
 <BR><BR>[Stack]<UL><LI>Max Depth = 20<LI>Call Chain = malloc
 </UL>
-<BR>[Called By]<UL><LI><a href="#[70]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_init
+<BR>[Called By]<UL><LI><a href="#[6f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;kb_buf_init
 </UL>

-<P><STRONG><a name="[6c]"></a>micros</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, delay_us.o(i.micros))
-<BR><BR>[Called By]<UL><LI><a href="#[65]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;delay_us
+<P><STRONG><a name="[6b]"></a>micros</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, delay_us.o(i.micros))
+<BR><BR>[Called By]<UL><LI><a href="#[6a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;delay_us
 </UL>

-<P><STRONG><a name="[74]"></a>protocol_status_lookup_init</STRONG> (Thumb, 22 bytes, Stack size 0 bytes, main.o(i.protocol_status_lookup_init))
+<P><STRONG><a name="[73]"></a>protocol_status_lookup_init</STRONG> (Thumb, 22 bytes, Stack size 0 bytes, main.o(i.protocol_status_lookup_init))
 <BR><BR>[Called By]<UL><LI><a href="#[21]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>

-<P><STRONG><a name="[75]"></a>spi_error_dump_reboot</STRONG> (Thumb, 76 bytes, Stack size 0 bytes, main.o(i.spi_error_dump_reboot))
-<BR><BR>[Stack]<UL><LI>Max Depth = 24<LI>Call Chain = spi_error_dump_reboot &rArr; __2printf
+<P><STRONG><a name="[78]"></a>release_kb_line</STRONG> (Thumb, 28 bytes, Stack size 8 bytes, main.o(i.release_kb_line))
+<BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = release_kb_line
 </UL>
-<BR>[Calls]<UL><LI><a href="#[79]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GPIO_TogglePin
-<LI><a href="#[30]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_Delay
-<LI><a href="#[73]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__2printf
+<BR>[Calls]<UL><LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GPIO_WritePin
+</UL>
+<BR>[Called By]<UL><LI><a href="#[76]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;send_key
+</UL>
+
+<P><STRONG><a name="[76]"></a>send_key</STRONG> (Thumb, 48 bytes, Stack size 16 bytes, main.o(i.send_key))
+<BR><BR>[Stack]<UL><LI>Max Depth = 36<LI>Call Chain = send_key &rArr; write_bit &rArr; delay_us
+</UL>
+<BR>[Calls]<UL><LI><a href="#[7a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;write_bit
+<LI><a href="#[78]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;release_kb_line
+<LI><a href="#[79]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;get_bit
 </UL>
 <BR>[Called By]<UL><LI><a href="#[21]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>

-<P><STRONG><a name="[78]"></a>wait_for_KBACK</STRONG> (Thumb, 40 bytes, Stack size 16 bytes, main.o(i.wait_for_KBACK))
-<BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = wait_for_KBACK
+<P><STRONG><a name="[74]"></a>spi_error_dump_reboot</STRONG> (Thumb, 76 bytes, Stack size 0 bytes, main.o(i.spi_error_dump_reboot))
+<BR><BR>[Stack]<UL><LI>Max Depth = 24<LI>Call Chain = spi_error_dump_reboot &rArr; __2printf
 </UL>
-<BR>[Calls]<UL><LI><a href="#[31]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GetTick
-<LI><a href="#[7a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GPIO_ReadPin
+<BR>[Calls]<UL><LI><a href="#[7b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GPIO_TogglePin
+<LI><a href="#[30]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_Delay
+<LI><a href="#[72]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__2printf
 </UL>
 <BR>[Called By]<UL><LI><a href="#[21]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>
+
+<P><STRONG><a name="[7a]"></a>write_bit</STRONG> (Thumb, 56 bytes, Stack size 16 bytes, main.o(i.write_bit))
+<BR><BR>[Stack]<UL><LI>Max Depth = 20<LI>Call Chain = write_bit &rArr; delay_us
+</UL>
+<BR>[Calls]<UL><LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_GPIO_WritePin
+<LI><a href="#[6a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;delay_us
+</UL>
+<BR>[Called By]<UL><LI><a href="#[76]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;send_key
+</UL>
 <P>
 <H3>
 Local Symbols
@@ -876,10 +884,10 @@ Local Symbols
 <LI><a href="#[3d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;HAL_NVIC_SetPriority
 </UL>

-<P><STRONG><a name="[6b]"></a>_printf_core</STRONG> (Thumb, 456 bytes, Stack size 88 bytes, printf3.o(i._printf_core), UNUSED)
+<P><STRONG><a name="[69]"></a>_printf_core</STRONG> (Thumb, 456 bytes, Stack size 88 bytes, printf3.o(i._printf_core), UNUSED)
 <BR><BR>[Calls]<UL><LI><a href="#[3b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_uidivmod
 </UL>
-<BR>[Called By]<UL><LI><a href="#[6a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__0printf$3
+<BR>[Called By]<UL><LI><a href="#[68]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__0printf$3
 </UL>
 <P>
 <H3>
--- a/1/MDK-ARM/my_adb/my_adb.map
+++ b/1/MDK-ARM/my_adb/my_adb.map
@@ -44,8 +44,6 @@ Section Cross References
    main.o(i.MX_TIM2_Init) refers to main.o(.bss) for .bss
    main.o(i.MX_USART2_UART_Init) refers to stm32f0xx_hal_uart.o(i.HAL_HalfDuplex_Init) for HAL_HalfDuplex_Init
    main.o(i.MX_USART2_UART_Init) refers to main.o(.bss) for .bss
-    main.o(i.SendBit) refers to stm32f0xx_hal_gpio.o(i.HAL_GPIO_WritePin) for HAL_GPIO_WritePin
-    main.o(i.SendBit) refers to delay_us.o(i.delay_us) for delay_us
    main.o(i.SystemClock_Config) refers to stm32f0xx_hal_rcc.o(i.HAL_RCC_OscConfig) for HAL_RCC_OscConfig
    main.o(i.SystemClock_Config) refers to stm32f0xx_hal_rcc.o(i.HAL_RCC_ClockConfig) for HAL_RCC_ClockConfig
    main.o(i.SystemClock_Config) refers to stm32f0xx_hal_rcc.o(i.HAL_RCC_GetHCLKFreq) for HAL_RCC_GetHCLKFreq
@@ -74,19 +72,22 @@ Section Cross References
    main.o(i.main) refers to stm32f0xx_hal.o(i.HAL_GetTick) for HAL_GetTick
    main.o(i.main) refers to stm32f0xx_hal_gpio.o(i.HAL_GPIO_WritePin) for HAL_GPIO_WritePin
    main.o(i.main) refers to helpers.o(i.kb_buf_peek) for kb_buf_peek
-    main.o(i.main) refers to main.o(i.SendBit) for SendBit
+    main.o(i.main) refers to main.o(i.send_key) for send_key
    main.o(i.main) refers to helpers.o(i.kb_buf_pop) for kb_buf_pop
-    main.o(i.main) refers to main.o(i.wait_for_KBACK) for wait_for_KBACK
    main.o(i.main) refers to main.o(.constdata) for .constdata
    main.o(i.main) refers to main.o(.bss) for .bss
    main.o(i.main) refers to main.o(.data) for .data
    main.o(i.protocol_status_lookup_init) refers to main.o(.bss) for .bss
+    main.o(i.release_kb_line) refers to stm32f0xx_hal_gpio.o(i.HAL_GPIO_WritePin) for HAL_GPIO_WritePin
+    main.o(i.send_key) refers to main.o(i.get_bit) for get_bit
+    main.o(i.send_key) refers to main.o(i.write_bit) for write_bit
+    main.o(i.send_key) refers to main.o(i.release_kb_line) for release_kb_line
    main.o(i.spi_error_dump_reboot) refers to printf3.o(i.__0printf$3) for __2printf
    main.o(i.spi_error_dump_reboot) refers to stm32f0xx_hal_gpio.o(i.HAL_GPIO_TogglePin) for HAL_GPIO_TogglePin
    main.o(i.spi_error_dump_reboot) refers to stm32f0xx_hal.o(i.HAL_Delay) for HAL_Delay
    main.o(i.spi_error_dump_reboot) refers to main.o(.bss) for .bss
-    main.o(i.wait_for_KBACK) refers to stm32f0xx_hal.o(i.HAL_GetTick) for HAL_GetTick
-    main.o(i.wait_for_KBACK) refers to stm32f0xx_hal_gpio.o(i.HAL_GPIO_ReadPin) for HAL_GPIO_ReadPin
+    main.o(i.write_bit) refers to stm32f0xx_hal_gpio.o(i.HAL_GPIO_WritePin) for HAL_GPIO_WritePin
+    main.o(i.write_bit) refers to delay_us.o(i.delay_us) for delay_us
    stm32f0xx_it.o(i.SPI1_IRQHandler) refers to stm32f0xx_hal_spi.o(i.HAL_SPI_IRQHandler) for HAL_SPI_IRQHandler
    stm32f0xx_it.o(i.SPI1_IRQHandler) refers to main.o(.bss) for hspi1
    stm32f0xx_it.o(i.SysTick_Handler) refers to stm32f0xx_hal.o(i.HAL_IncTick) for HAL_IncTick
@@ -1037,6 +1038,7 @@ Removing Unused input sections from the image.
    Removing main.o(i.byte_to_int16_t), (8 bytes).
    Removing main.o(i.handle_protocol_switch), (60 bytes).
    Removing main.o(i.is_protocol_enabled), (20 bytes).
+    Removing main.o(i.wait_for_KBACK), (4 bytes).
    Removing main.o(.constdata), (1 bytes).
    Removing main.o(.constdata), (1 bytes).
    Removing main.o(.constdata), (1 bytes).
@@ -1425,6 +1427,7 @@ Removing Unused input sections from the image.
    Removing stm32f0xx_hal_gpio.o(i.HAL_GPIO_EXTI_Callback), (2 bytes).
    Removing stm32f0xx_hal_gpio.o(i.HAL_GPIO_EXTI_IRQHandler), (24 bytes).
    Removing stm32f0xx_hal_gpio.o(i.HAL_GPIO_LockPin), (36 bytes).
+    Removing stm32f0xx_hal_gpio.o(i.HAL_GPIO_ReadPin), (10 bytes).
    Removing stm32f0xx_hal_dma.o(.rev16_text), (4 bytes).
    Removing stm32f0xx_hal_dma.o(.revsh_text), (4 bytes).
    Removing stm32f0xx_hal_dma.o(i.DMA_CalcBaseAndBitshift), (36 bytes).
@@ -1514,7 +1517,7 @@ Removing Unused input sections from the image.
    Removing stm32f0xx_hal_tim.o(i.__ARM_common_switch8), (26 bytes).
    Removing depilogue.o(i.__ARM_clz), (46 bytes).

-494 unused section(s) (total 34928 bytes) removed from the image.
+496 unused section(s) (total 34942 bytes) removed from the image.

 ==============================================================================

@@ -1548,42 +1551,42 @@ Image Symbol Table
    ../Src/stm32f0xx_it.c                    0x00000000   Number         0  stm32f0xx_it.o ABSOLUTE
    ../clib/microlib/division.c              0x00000000   Number         0  uldiv.o ABSOLUTE
    ../clib/microlib/division.c              0x00000000   Number         0  uidiv.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry8b.o ABSOLUTE
    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry8a.o ABSOLUTE
    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry7b.o ABSOLUTE
    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry7a.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry5.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry2.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry10b.o ABSOLUTE
    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry9b.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry10a.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry5.o ABSOLUTE
    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry11b.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry11a.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry10b.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry10a.o ABSOLUTE
    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry9a.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry8b.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry11a.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry2.o ABSOLUTE
    ../clib/microlib/longlong.c              0x00000000   Number         0  llsshr.o ABSOLUTE
-    ../clib/microlib/longlong.c              0x00000000   Number         0  llshl.o ABSOLUTE
    ../clib/microlib/longlong.c              0x00000000   Number         0  llushr.o ABSOLUTE
+    ../clib/microlib/longlong.c              0x00000000   Number         0  llshl.o ABSOLUTE
    ../clib/microlib/malloc/malloc.c         0x00000000   Number         0  malloca.o ABSOLUTE
-    ../clib/microlib/malloc/malloc.c         0x00000000   Number         0  mallocr.o ABSOLUTE
    ../clib/microlib/malloc/malloc.c         0x00000000   Number         0  mallocra.o ABSOLUTE
    ../clib/microlib/malloc/malloc.c         0x00000000   Number         0  malloc.o ABSOLUTE
+    ../clib/microlib/malloc/malloc.c         0x00000000   Number         0  mallocr.o ABSOLUTE
    ../clib/microlib/malloc/mvars.c          0x00000000   Number         0  mvars.o ABSOLUTE
-    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf7.o ABSOLUTE
-    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf6.o ABSOLUTE
-    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf5.o ABSOLUTE
-    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf4.o ABSOLUTE
-    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf3.o ABSOLUTE
-    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf8.o ABSOLUTE
-    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printfa.o ABSOLUTE
-    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf2.o ABSOLUTE
    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf1.o ABSOLUTE
    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf0.o ABSOLUTE
    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printfb.o ABSOLUTE
+    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printfa.o ABSOLUTE
+    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf8.o ABSOLUTE
+    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf7.o ABSOLUTE
+    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf6.o ABSOLUTE
+    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf5.o ABSOLUTE
+    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf3.o ABSOLUTE
+    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf2.o ABSOLUTE
+    ../clib/microlib/printf/printf.c         0x00000000   Number         0  printf4.o ABSOLUTE
    ../clib/microlib/printf/stubs.s          0x00000000   Number         0  stubs.o ABSOLUTE
    ../clib/microlib/stdio/streams.c         0x00000000   Number         0  stdout.o ABSOLUTE
-    ../clib/microlib/string/memcpy.c         0x00000000   Number         0  memcpyb.o ABSOLUTE
    ../clib/microlib/string/memcpy.c         0x00000000   Number         0  memcpya.o ABSOLUTE
+    ../clib/microlib/string/memcpy.c         0x00000000   Number         0  memcpyb.o ABSOLUTE
    ../clib/microlib/string/memset.c         0x00000000   Number         0  memseta.o ABSOLUTE
    ../clib/microlib/stubs.s                 0x00000000   Number         0  iusefp.o ABSOLUTE
    ../fplib/microlib/fpadd.c                0x00000000   Number         0  dadd.o ABSOLUTE
@@ -1640,113 +1643,114 @@ Image Symbol Table
    i.HAL_DMA_Abort_IT                       0x080001a0   Section        0  stm32f0xx_hal_dma.o(i.HAL_DMA_Abort_IT)
    i.HAL_Delay                              0x080001e8   Section        0  stm32f0xx_hal.o(i.HAL_Delay)
    i.HAL_GPIO_Init                          0x08000204   Section        0  stm32f0xx_hal_gpio.o(i.HAL_GPIO_Init)
-    i.HAL_GPIO_ReadPin                       0x08000340   Section        0  stm32f0xx_hal_gpio.o(i.HAL_GPIO_ReadPin)
-    i.HAL_GPIO_TogglePin                     0x0800034a   Section        0  stm32f0xx_hal_gpio.o(i.HAL_GPIO_TogglePin)
-    i.HAL_GPIO_WritePin                      0x08000352   Section        0  stm32f0xx_hal_gpio.o(i.HAL_GPIO_WritePin)
-    i.HAL_GetTick                            0x08000360   Section        0  stm32f0xx_hal.o(i.HAL_GetTick)
-    i.HAL_HalfDuplex_Init                    0x0800036c   Section        0  stm32f0xx_hal_uart.o(i.HAL_HalfDuplex_Init)
-    i.HAL_IncTick                            0x080003e4   Section        0  stm32f0xx_hal.o(i.HAL_IncTick)
-    i.HAL_Init                               0x080003f4   Section        0  stm32f0xx_hal.o(i.HAL_Init)
-    i.HAL_InitTick                           0x08000414   Section        0  stm32f0xx_hal.o(i.HAL_InitTick)
-    i.HAL_MspInit                            0x08000438   Section        0  stm32f0xx_hal_msp.o(i.HAL_MspInit)
-    i.HAL_NVIC_EnableIRQ                     0x0800047c   Section        0  stm32f0xx_hal_cortex.o(i.HAL_NVIC_EnableIRQ)
-    i.HAL_NVIC_SetPriority                   0x08000490   Section        0  stm32f0xx_hal_cortex.o(i.HAL_NVIC_SetPriority)
-    i.HAL_RCC_ClockConfig                    0x08000498   Section        0  stm32f0xx_hal_rcc.o(i.HAL_RCC_ClockConfig)
-    i.HAL_RCC_GetHCLKFreq                    0x080005ec   Section        0  stm32f0xx_hal_rcc.o(i.HAL_RCC_GetHCLKFreq)
-    i.HAL_RCC_GetPCLK1Freq                   0x080005f8   Section        0  stm32f0xx_hal_rcc.o(i.HAL_RCC_GetPCLK1Freq)
-    i.HAL_RCC_GetSysClockFreq                0x08000618   Section        0  stm32f0xx_hal_rcc.o(i.HAL_RCC_GetSysClockFreq)
-    i.HAL_RCC_OscConfig                      0x080006a0   Section        0  stm32f0xx_hal_rcc.o(i.HAL_RCC_OscConfig)
-    i.HAL_SPI_ErrorCallback                  0x08000a78   Section        0  stm32f0xx_hal_spi.o(i.HAL_SPI_ErrorCallback)
-    i.HAL_SPI_IRQHandler                     0x08000a7c   Section        0  stm32f0xx_hal_spi.o(i.HAL_SPI_IRQHandler)
-    i.HAL_SPI_Init                           0x08000b50   Section        0  stm32f0xx_hal_spi.o(i.HAL_SPI_Init)
-    i.HAL_SPI_MspInit                        0x08000c08   Section        0  stm32f0xx_hal_msp.o(i.HAL_SPI_MspInit)
-    i.HAL_SPI_RxCpltCallback                 0x08000c5c   Section        0  stm32f0xx_hal_spi.o(i.HAL_SPI_RxCpltCallback)
-    i.HAL_SPI_TransmitReceive_IT             0x08000c60   Section        0  stm32f0xx_hal_spi.o(i.HAL_SPI_TransmitReceive_IT)
-    i.HAL_SPI_TxRxCpltCallback               0x08000d34   Section        0  main.o(i.HAL_SPI_TxRxCpltCallback)
-    i.HAL_SYSTICK_CLKSourceConfig            0x08000de0   Section        0  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_CLKSourceConfig)
-    i.HAL_SYSTICK_Callback                   0x08000df8   Section        0  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_Callback)
-    i.HAL_SYSTICK_Config                     0x08000dfc   Section        0  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_Config)
-    i.HAL_SYSTICK_IRQHandler                 0x08000e2c   Section        0  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_IRQHandler)
-    i.HAL_TIMEx_MasterConfigSynchronization  0x08000e34   Section        0  stm32f0xx_hal_tim_ex.o(i.HAL_TIMEx_MasterConfigSynchronization)
-    i.HAL_TIM_Base_Init                      0x08000e7c   Section        0  stm32f0xx_hal_tim.o(i.HAL_TIM_Base_Init)
-    i.HAL_TIM_Base_MspInit                   0x08000eb0   Section        0  stm32f0xx_hal_msp.o(i.HAL_TIM_Base_MspInit)
-    i.HAL_TIM_Base_Start                     0x08000ed4   Section        0  stm32f0xx_hal_tim.o(i.HAL_TIM_Base_Start)
-    i.HAL_TIM_ConfigClockSource              0x08000eec   Section        0  stm32f0xx_hal_tim.o(i.HAL_TIM_ConfigClockSource)
-    i.HAL_UART_MspInit                       0x08000fdc   Section        0  stm32f0xx_hal_msp.o(i.HAL_UART_MspInit)
-    i.HAL_UART_Transmit                      0x08001024   Section        0  stm32f0xx_hal_uart.o(i.HAL_UART_Transmit)
-    i.HardFault_Handler                      0x080010ec   Section        0  stm32f0xx_it.o(i.HardFault_Handler)
-    i.MX_GPIO_Init                           0x080010f0   Section        0  main.o(i.MX_GPIO_Init)
-    MX_GPIO_Init                             0x080010f1   Thumb Code   146  main.o(i.MX_GPIO_Init)
-    i.MX_SPI1_Init                           0x0800118c   Section        0  main.o(i.MX_SPI1_Init)
-    MX_SPI1_Init                             0x0800118d   Thumb Code    52  main.o(i.MX_SPI1_Init)
-    i.MX_TIM2_Init                           0x080011c8   Section        0  main.o(i.MX_TIM2_Init)
-    MX_TIM2_Init                             0x080011c9   Thumb Code    80  main.o(i.MX_TIM2_Init)
-    i.MX_USART2_UART_Init                    0x0800121c   Section        0  main.o(i.MX_USART2_UART_Init)
-    MX_USART2_UART_Init                      0x0800121d   Thumb Code    46  main.o(i.MX_USART2_UART_Init)
-    i.NMI_Handler                            0x08001254   Section        0  stm32f0xx_it.o(i.NMI_Handler)
-    i.NVIC_SetPriority                       0x08001258   Section        0  stm32f0xx_hal_cortex.o(i.NVIC_SetPriority)
-    NVIC_SetPriority                         0x08001259   Thumb Code    60  stm32f0xx_hal_cortex.o(i.NVIC_SetPriority)
-    i.PendSV_Handler                         0x0800129c   Section        0  stm32f0xx_it.o(i.PendSV_Handler)
-    i.SPI1_IRQHandler                        0x080012a0   Section        0  stm32f0xx_it.o(i.SPI1_IRQHandler)
-    i.SPI_2linesRxISR_16BIT                  0x080012b0   Section        0  stm32f0xx_hal_spi.o(i.SPI_2linesRxISR_16BIT)
-    SPI_2linesRxISR_16BIT                    0x080012b1   Thumb Code    54  stm32f0xx_hal_spi.o(i.SPI_2linesRxISR_16BIT)
-    i.SPI_2linesRxISR_8BIT                   0x080012e6   Section        0  stm32f0xx_hal_spi.o(i.SPI_2linesRxISR_8BIT)
-    SPI_2linesRxISR_8BIT                     0x080012e7   Thumb Code    94  stm32f0xx_hal_spi.o(i.SPI_2linesRxISR_8BIT)
-    i.SPI_2linesTxISR_16BIT                  0x08001344   Section        0  stm32f0xx_hal_spi.o(i.SPI_2linesTxISR_16BIT)
-    SPI_2linesTxISR_16BIT                    0x08001345   Thumb Code    52  stm32f0xx_hal_spi.o(i.SPI_2linesTxISR_16BIT)
-    i.SPI_2linesTxISR_8BIT                   0x08001378   Section        0  stm32f0xx_hal_spi.o(i.SPI_2linesTxISR_8BIT)
-    SPI_2linesTxISR_8BIT                     0x08001379   Thumb Code    72  stm32f0xx_hal_spi.o(i.SPI_2linesTxISR_8BIT)
-    i.SPI_CloseRxTx_ISR                      0x080013c0   Section        0  stm32f0xx_hal_spi.o(i.SPI_CloseRxTx_ISR)
-    SPI_CloseRxTx_ISR                        0x080013c1   Thumb Code    82  stm32f0xx_hal_spi.o(i.SPI_CloseRxTx_ISR)
-    i.SPI_DMAAbortOnError                    0x08001412   Section        0  stm32f0xx_hal_spi.o(i.SPI_DMAAbortOnError)
-    SPI_DMAAbortOnError                      0x08001413   Thumb Code    18  stm32f0xx_hal_spi.o(i.SPI_DMAAbortOnError)
-    i.SPI_EndRxTxTransaction                 0x08001424   Section        0  stm32f0xx_hal_spi.o(i.SPI_EndRxTxTransaction)
-    SPI_EndRxTxTransaction                   0x08001425   Thumb Code    76  stm32f0xx_hal_spi.o(i.SPI_EndRxTxTransaction)
-    i.SPI_WaitFifoStateUntilTimeout          0x08001470   Section        0  stm32f0xx_hal_spi.o(i.SPI_WaitFifoStateUntilTimeout)
-    SPI_WaitFifoStateUntilTimeout            0x08001471   Thumb Code   150  stm32f0xx_hal_spi.o(i.SPI_WaitFifoStateUntilTimeout)
-    i.SPI_WaitFlagStateUntilTimeout          0x08001506   Section        0  stm32f0xx_hal_spi.o(i.SPI_WaitFlagStateUntilTimeout)
-    SPI_WaitFlagStateUntilTimeout            0x08001507   Thumb Code   140  stm32f0xx_hal_spi.o(i.SPI_WaitFlagStateUntilTimeout)
-    i.SVC_Handler                            0x08001592   Section        0  stm32f0xx_it.o(i.SVC_Handler)
-    i.SendBit                                0x08001594   Section        0  main.o(i.SendBit)
-    i.SysTick_Handler                        0x080015ca   Section        0  stm32f0xx_it.o(i.SysTick_Handler)
-    i.SystemClock_Config                     0x080015d6   Section        0  main.o(i.SystemClock_Config)
-    i.SystemInit                             0x08001630   Section        0  system_stm32f0xx.o(i.SystemInit)
-    i.TIM_Base_SetConfig                     0x0800168c   Section        0  stm32f0xx_hal_tim.o(i.TIM_Base_SetConfig)
-    i.TIM_ETR_SetConfig                      0x08001710   Section        0  stm32f0xx_hal_tim.o(i.TIM_ETR_SetConfig)
-    i.TIM_ITRx_SetConfig                     0x08001726   Section        0  stm32f0xx_hal_tim.o(i.TIM_ITRx_SetConfig)
-    TIM_ITRx_SetConfig                       0x08001727   Thumb Code    16  stm32f0xx_hal_tim.o(i.TIM_ITRx_SetConfig)
-    i.TIM_TI1_ConfigInputStage               0x08001736   Section        0  stm32f0xx_hal_tim.o(i.TIM_TI1_ConfigInputStage)
-    TIM_TI1_ConfigInputStage                 0x08001737   Thumb Code    34  stm32f0xx_hal_tim.o(i.TIM_TI1_ConfigInputStage)
-    i.TIM_TI2_ConfigInputStage               0x08001758   Section        0  stm32f0xx_hal_tim.o(i.TIM_TI2_ConfigInputStage)
-    TIM_TI2_ConfigInputStage                 0x08001759   Thumb Code    38  stm32f0xx_hal_tim.o(i.TIM_TI2_ConfigInputStage)
-    i.UART_AdvFeatureConfig                  0x0800177e   Section        0  stm32f0xx_hal_uart.o(i.UART_AdvFeatureConfig)
-    i.UART_CheckIdleState                    0x08001848   Section        0  stm32f0xx_hal_uart.o(i.UART_CheckIdleState)
-    i.UART_SetConfig                         0x080018b0   Section        0  stm32f0xx_hal_uart.o(i.UART_SetConfig)
-    i.UART_WaitOnFlagUntilTimeout            0x080019e0   Section        0  stm32f0xx_hal_uart.o(i.UART_WaitOnFlagUntilTimeout)
-    i.__0printf$3                            0x08001a44   Section        0  printf3.o(i.__0printf$3)
-    i.__scatterload_copy                     0x08001a64   Section       14  handlers.o(i.__scatterload_copy)
-    i.__scatterload_null                     0x08001a72   Section        2  handlers.o(i.__scatterload_null)
-    i.__scatterload_zeroinit                 0x08001a74   Section       14  handlers.o(i.__scatterload_zeroinit)
-    i._printf_core                           0x08001a84   Section        0  printf3.o(i._printf_core)
-    _printf_core                             0x08001a85   Thumb Code   456  printf3.o(i._printf_core)
-    i.delay_us                               0x08001c50   Section        0  delay_us.o(i.delay_us)
-    i.delay_us_init                          0x08001c64   Section        0  delay_us.o(i.delay_us_init)
-    i.fputc                                  0x08001c74   Section        0  main.o(i.fputc)
-    i.kb_buf_add                             0x08001c8c   Section        0  helpers.o(i.kb_buf_add)
-    i.kb_buf_init                            0x08001cb8   Section        0  helpers.o(i.kb_buf_init)
-    i.kb_buf_is_full                         0x08001cd4   Section        0  helpers.o(i.kb_buf_is_full)
-    i.kb_buf_peek                            0x08001cea   Section        0  helpers.o(i.kb_buf_peek)
-    i.kb_buf_pop                             0x08001d0a   Section        0  helpers.o(i.kb_buf_pop)
-    i.kb_buf_reset                           0x08001d1c   Section        0  helpers.o(i.kb_buf_reset)
-    i.main                                   0x08001d38   Section        0  main.o(i.main)
-    i.malloc                                 0x08001e04   Section        0  malloc.o(i.malloc)
-    i.micros                                 0x08001e70   Section        0  delay_us.o(i.micros)
-    i.protocol_status_lookup_init            0x08001e80   Section        0  main.o(i.protocol_status_lookup_init)
-    i.spi_error_dump_reboot                  0x08001e9c   Section        0  main.o(i.spi_error_dump_reboot)
-    i.wait_for_KBACK                         0x08001f18   Section        0  main.o(i.wait_for_KBACK)
-    .constdata                               0x08001f44   Section       59  main.o(.constdata)
-    .constdata                               0x08001f7f   Section       16  system_stm32f0xx.o(.constdata)
-    .constdata                               0x08001f8f   Section        8  system_stm32f0xx.o(.constdata)
+    i.HAL_GPIO_TogglePin                     0x08000340   Section        0  stm32f0xx_hal_gpio.o(i.HAL_GPIO_TogglePin)
+    i.HAL_GPIO_WritePin                      0x08000348   Section        0  stm32f0xx_hal_gpio.o(i.HAL_GPIO_WritePin)
+    i.HAL_GetTick                            0x08000354   Section        0  stm32f0xx_hal.o(i.HAL_GetTick)
+    i.HAL_HalfDuplex_Init                    0x08000360   Section        0  stm32f0xx_hal_uart.o(i.HAL_HalfDuplex_Init)
+    i.HAL_IncTick                            0x080003d8   Section        0  stm32f0xx_hal.o(i.HAL_IncTick)
+    i.HAL_Init                               0x080003e8   Section        0  stm32f0xx_hal.o(i.HAL_Init)
+    i.HAL_InitTick                           0x08000408   Section        0  stm32f0xx_hal.o(i.HAL_InitTick)
+    i.HAL_MspInit                            0x0800042c   Section        0  stm32f0xx_hal_msp.o(i.HAL_MspInit)
+    i.HAL_NVIC_EnableIRQ                     0x08000470   Section        0  stm32f0xx_hal_cortex.o(i.HAL_NVIC_EnableIRQ)
+    i.HAL_NVIC_SetPriority                   0x08000484   Section        0  stm32f0xx_hal_cortex.o(i.HAL_NVIC_SetPriority)
+    i.HAL_RCC_ClockConfig                    0x0800048c   Section        0  stm32f0xx_hal_rcc.o(i.HAL_RCC_ClockConfig)
+    i.HAL_RCC_GetHCLKFreq                    0x080005e0   Section        0  stm32f0xx_hal_rcc.o(i.HAL_RCC_GetHCLKFreq)
+    i.HAL_RCC_GetPCLK1Freq                   0x080005ec   Section        0  stm32f0xx_hal_rcc.o(i.HAL_RCC_GetPCLK1Freq)
+    i.HAL_RCC_GetSysClockFreq                0x0800060c   Section        0  stm32f0xx_hal_rcc.o(i.HAL_RCC_GetSysClockFreq)
+    i.HAL_RCC_OscConfig                      0x08000694   Section        0  stm32f0xx_hal_rcc.o(i.HAL_RCC_OscConfig)
+    i.HAL_SPI_ErrorCallback                  0x08000a6c   Section        0  stm32f0xx_hal_spi.o(i.HAL_SPI_ErrorCallback)
+    i.HAL_SPI_IRQHandler                     0x08000a70   Section        0  stm32f0xx_hal_spi.o(i.HAL_SPI_IRQHandler)
+    i.HAL_SPI_Init                           0x08000b44   Section        0  stm32f0xx_hal_spi.o(i.HAL_SPI_Init)
+    i.HAL_SPI_MspInit                        0x08000bfc   Section        0  stm32f0xx_hal_msp.o(i.HAL_SPI_MspInit)
+    i.HAL_SPI_RxCpltCallback                 0x08000c50   Section        0  stm32f0xx_hal_spi.o(i.HAL_SPI_RxCpltCallback)
+    i.HAL_SPI_TransmitReceive_IT             0x08000c54   Section        0  stm32f0xx_hal_spi.o(i.HAL_SPI_TransmitReceive_IT)
+    i.HAL_SPI_TxRxCpltCallback               0x08000d28   Section        0  main.o(i.HAL_SPI_TxRxCpltCallback)
+    i.HAL_SYSTICK_CLKSourceConfig            0x08000dd4   Section        0  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_CLKSourceConfig)
+    i.HAL_SYSTICK_Callback                   0x08000dec   Section        0  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_Callback)
+    i.HAL_SYSTICK_Config                     0x08000df0   Section        0  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_Config)
+    i.HAL_SYSTICK_IRQHandler                 0x08000e20   Section        0  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_IRQHandler)
+    i.HAL_TIMEx_MasterConfigSynchronization  0x08000e28   Section        0  stm32f0xx_hal_tim_ex.o(i.HAL_TIMEx_MasterConfigSynchronization)
+    i.HAL_TIM_Base_Init                      0x08000e70   Section        0  stm32f0xx_hal_tim.o(i.HAL_TIM_Base_Init)
+    i.HAL_TIM_Base_MspInit                   0x08000ea4   Section        0  stm32f0xx_hal_msp.o(i.HAL_TIM_Base_MspInit)
+    i.HAL_TIM_Base_Start                     0x08000ec8   Section        0  stm32f0xx_hal_tim.o(i.HAL_TIM_Base_Start)
+    i.HAL_TIM_ConfigClockSource              0x08000ee0   Section        0  stm32f0xx_hal_tim.o(i.HAL_TIM_ConfigClockSource)
+    i.HAL_UART_MspInit                       0x08000fd0   Section        0  stm32f0xx_hal_msp.o(i.HAL_UART_MspInit)
+    i.HAL_UART_Transmit                      0x08001018   Section        0  stm32f0xx_hal_uart.o(i.HAL_UART_Transmit)
+    i.HardFault_Handler                      0x080010e0   Section        0  stm32f0xx_it.o(i.HardFault_Handler)
+    i.MX_GPIO_Init                           0x080010e4   Section        0  main.o(i.MX_GPIO_Init)
+    MX_GPIO_Init                             0x080010e5   Thumb Code   146  main.o(i.MX_GPIO_Init)
+    i.MX_SPI1_Init                           0x08001180   Section        0  main.o(i.MX_SPI1_Init)
+    MX_SPI1_Init                             0x08001181   Thumb Code    52  main.o(i.MX_SPI1_Init)
+    i.MX_TIM2_Init                           0x080011bc   Section        0  main.o(i.MX_TIM2_Init)
+    MX_TIM2_Init                             0x080011bd   Thumb Code    80  main.o(i.MX_TIM2_Init)
+    i.MX_USART2_UART_Init                    0x08001210   Section        0  main.o(i.MX_USART2_UART_Init)
+    MX_USART2_UART_Init                      0x08001211   Thumb Code    46  main.o(i.MX_USART2_UART_Init)
+    i.NMI_Handler                            0x08001248   Section        0  stm32f0xx_it.o(i.NMI_Handler)
+    i.NVIC_SetPriority                       0x0800124c   Section        0  stm32f0xx_hal_cortex.o(i.NVIC_SetPriority)
+    NVIC_SetPriority                         0x0800124d   Thumb Code    60  stm32f0xx_hal_cortex.o(i.NVIC_SetPriority)
+    i.PendSV_Handler                         0x08001290   Section        0  stm32f0xx_it.o(i.PendSV_Handler)
+    i.SPI1_IRQHandler                        0x08001294   Section        0  stm32f0xx_it.o(i.SPI1_IRQHandler)
+    i.SPI_2linesRxISR_16BIT                  0x080012a4   Section        0  stm32f0xx_hal_spi.o(i.SPI_2linesRxISR_16BIT)
+    SPI_2linesRxISR_16BIT                    0x080012a5   Thumb Code    54  stm32f0xx_hal_spi.o(i.SPI_2linesRxISR_16BIT)
+    i.SPI_2linesRxISR_8BIT                   0x080012da   Section        0  stm32f0xx_hal_spi.o(i.SPI_2linesRxISR_8BIT)
+    SPI_2linesRxISR_8BIT                     0x080012db   Thumb Code    94  stm32f0xx_hal_spi.o(i.SPI_2linesRxISR_8BIT)
+    i.SPI_2linesTxISR_16BIT                  0x08001338   Section        0  stm32f0xx_hal_spi.o(i.SPI_2linesTxISR_16BIT)
+    SPI_2linesTxISR_16BIT                    0x08001339   Thumb Code    52  stm32f0xx_hal_spi.o(i.SPI_2linesTxISR_16BIT)
+    i.SPI_2linesTxISR_8BIT                   0x0800136c   Section        0  stm32f0xx_hal_spi.o(i.SPI_2linesTxISR_8BIT)
+    SPI_2linesTxISR_8BIT                     0x0800136d   Thumb Code    72  stm32f0xx_hal_spi.o(i.SPI_2linesTxISR_8BIT)
+    i.SPI_CloseRxTx_ISR                      0x080013b4   Section        0  stm32f0xx_hal_spi.o(i.SPI_CloseRxTx_ISR)
+    SPI_CloseRxTx_ISR                        0x080013b5   Thumb Code    82  stm32f0xx_hal_spi.o(i.SPI_CloseRxTx_ISR)
+    i.SPI_DMAAbortOnError                    0x08001406   Section        0  stm32f0xx_hal_spi.o(i.SPI_DMAAbortOnError)
+    SPI_DMAAbortOnError                      0x08001407   Thumb Code    18  stm32f0xx_hal_spi.o(i.SPI_DMAAbortOnError)
+    i.SPI_EndRxTxTransaction                 0x08001418   Section        0  stm32f0xx_hal_spi.o(i.SPI_EndRxTxTransaction)
+    SPI_EndRxTxTransaction                   0x08001419   Thumb Code    76  stm32f0xx_hal_spi.o(i.SPI_EndRxTxTransaction)
+    i.SPI_WaitFifoStateUntilTimeout          0x08001464   Section        0  stm32f0xx_hal_spi.o(i.SPI_WaitFifoStateUntilTimeout)
+    SPI_WaitFifoStateUntilTimeout            0x08001465   Thumb Code   150  stm32f0xx_hal_spi.o(i.SPI_WaitFifoStateUntilTimeout)
+    i.SPI_WaitFlagStateUntilTimeout          0x080014fa   Section        0  stm32f0xx_hal_spi.o(i.SPI_WaitFlagStateUntilTimeout)
+    SPI_WaitFlagStateUntilTimeout            0x080014fb   Thumb Code   140  stm32f0xx_hal_spi.o(i.SPI_WaitFlagStateUntilTimeout)
+    i.SVC_Handler                            0x08001586   Section        0  stm32f0xx_it.o(i.SVC_Handler)
+    i.SysTick_Handler                        0x08001588   Section        0  stm32f0xx_it.o(i.SysTick_Handler)
+    i.SystemClock_Config                     0x08001594   Section        0  main.o(i.SystemClock_Config)
+    i.SystemInit                             0x080015f0   Section        0  system_stm32f0xx.o(i.SystemInit)
+    i.TIM_Base_SetConfig                     0x0800164c   Section        0  stm32f0xx_hal_tim.o(i.TIM_Base_SetConfig)
+    i.TIM_ETR_SetConfig                      0x080016d0   Section        0  stm32f0xx_hal_tim.o(i.TIM_ETR_SetConfig)
+    i.TIM_ITRx_SetConfig                     0x080016e6   Section        0  stm32f0xx_hal_tim.o(i.TIM_ITRx_SetConfig)
+    TIM_ITRx_SetConfig                       0x080016e7   Thumb Code    16  stm32f0xx_hal_tim.o(i.TIM_ITRx_SetConfig)
+    i.TIM_TI1_ConfigInputStage               0x080016f6   Section        0  stm32f0xx_hal_tim.o(i.TIM_TI1_ConfigInputStage)
+    TIM_TI1_ConfigInputStage                 0x080016f7   Thumb Code    34  stm32f0xx_hal_tim.o(i.TIM_TI1_ConfigInputStage)
+    i.TIM_TI2_ConfigInputStage               0x08001718   Section        0  stm32f0xx_hal_tim.o(i.TIM_TI2_ConfigInputStage)
+    TIM_TI2_ConfigInputStage                 0x08001719   Thumb Code    38  stm32f0xx_hal_tim.o(i.TIM_TI2_ConfigInputStage)
+    i.UART_AdvFeatureConfig                  0x0800173e   Section        0  stm32f0xx_hal_uart.o(i.UART_AdvFeatureConfig)
+    i.UART_CheckIdleState                    0x08001808   Section        0  stm32f0xx_hal_uart.o(i.UART_CheckIdleState)
+    i.UART_SetConfig                         0x08001870   Section        0  stm32f0xx_hal_uart.o(i.UART_SetConfig)
+    i.UART_WaitOnFlagUntilTimeout            0x080019a0   Section        0  stm32f0xx_hal_uart.o(i.UART_WaitOnFlagUntilTimeout)
+    i.__0printf$3                            0x08001a04   Section        0  printf3.o(i.__0printf$3)
+    i.__scatterload_copy                     0x08001a24   Section       14  handlers.o(i.__scatterload_copy)
+    i.__scatterload_null                     0x08001a32   Section        2  handlers.o(i.__scatterload_null)
+    i.__scatterload_zeroinit                 0x08001a34   Section       14  handlers.o(i.__scatterload_zeroinit)
+    i._printf_core                           0x08001a44   Section        0  printf3.o(i._printf_core)
+    _printf_core                             0x08001a45   Thumb Code   456  printf3.o(i._printf_core)
+    i.delay_us                               0x08001c10   Section        0  delay_us.o(i.delay_us)
+    i.delay_us_init                          0x08001c24   Section        0  delay_us.o(i.delay_us_init)
+    i.fputc                                  0x08001c34   Section        0  main.o(i.fputc)
+    i.get_bit                                0x08001c4c   Section        0  main.o(i.get_bit)
+    i.kb_buf_add                             0x08001c5c   Section        0  helpers.o(i.kb_buf_add)
+    i.kb_buf_init                            0x08001c88   Section        0  helpers.o(i.kb_buf_init)
+    i.kb_buf_is_full                         0x08001ca4   Section        0  helpers.o(i.kb_buf_is_full)
+    i.kb_buf_peek                            0x08001cba   Section        0  helpers.o(i.kb_buf_peek)
+    i.kb_buf_pop                             0x08001cda   Section        0  helpers.o(i.kb_buf_pop)
+    i.kb_buf_reset                           0x08001cec   Section        0  helpers.o(i.kb_buf_reset)
+    i.main                                   0x08001d08   Section        0  main.o(i.main)
+    i.malloc                                 0x08001dc8   Section        0  malloc.o(i.malloc)
+    i.micros                                 0x08001e34   Section        0  delay_us.o(i.micros)
+    i.protocol_status_lookup_init            0x08001e44   Section        0  main.o(i.protocol_status_lookup_init)
+    i.release_kb_line                        0x08001e60   Section        0  main.o(i.release_kb_line)
+    i.send_key                               0x08001e7c   Section        0  main.o(i.send_key)
+    i.spi_error_dump_reboot                  0x08001eac   Section        0  main.o(i.spi_error_dump_reboot)
+    i.write_bit                              0x08001f28   Section        0  main.o(i.write_bit)
+    .constdata                               0x08001f60   Section       59  main.o(.constdata)
+    .constdata                               0x08001f9b   Section       16  system_stm32f0xx.o(.constdata)
+    .constdata                               0x08001fab   Section        8  system_stm32f0xx.o(.constdata)
    .data                                    0x20000000   Section        4  delay_us.o(.data)
    .data                                    0x20000004   Section        8  main.o(.data)
    .data                                    0x2000000c   Section        4  stm32f0xx_hal.o(.data)
@@ -1863,81 +1867,82 @@ Image Symbol Table
    HAL_DMA_Abort_IT                         0x080001a1   Thumb Code    72  stm32f0xx_hal_dma.o(i.HAL_DMA_Abort_IT)
    HAL_Delay                                0x080001e9   Thumb Code    28  stm32f0xx_hal.o(i.HAL_Delay)
    HAL_GPIO_Init                            0x08000205   Thumb Code   294  stm32f0xx_hal_gpio.o(i.HAL_GPIO_Init)
-    HAL_GPIO_ReadPin                         0x08000341   Thumb Code    10  stm32f0xx_hal_gpio.o(i.HAL_GPIO_ReadPin)
-    HAL_GPIO_TogglePin                       0x0800034b   Thumb Code     8  stm32f0xx_hal_gpio.o(i.HAL_GPIO_TogglePin)
-    HAL_GPIO_WritePin                        0x08000353   Thumb Code    12  stm32f0xx_hal_gpio.o(i.HAL_GPIO_WritePin)
-    HAL_GetTick                              0x08000361   Thumb Code     6  stm32f0xx_hal.o(i.HAL_GetTick)
-    HAL_HalfDuplex_Init                      0x0800036d   Thumb Code   118  stm32f0xx_hal_uart.o(i.HAL_HalfDuplex_Init)
-    HAL_IncTick                              0x080003e5   Thumb Code    10  stm32f0xx_hal.o(i.HAL_IncTick)
-    HAL_Init                                 0x080003f5   Thumb Code    26  stm32f0xx_hal.o(i.HAL_Init)
-    HAL_InitTick                             0x08000415   Thumb Code    34  stm32f0xx_hal.o(i.HAL_InitTick)
-    HAL_MspInit                              0x08000439   Thumb Code    64  stm32f0xx_hal_msp.o(i.HAL_MspInit)
-    HAL_NVIC_EnableIRQ                       0x0800047d   Thumb Code    14  stm32f0xx_hal_cortex.o(i.HAL_NVIC_EnableIRQ)
-    HAL_NVIC_SetPriority                     0x08000491   Thumb Code     8  stm32f0xx_hal_cortex.o(i.HAL_NVIC_SetPriority)
-    HAL_RCC_ClockConfig                      0x08000499   Thumb Code   320  stm32f0xx_hal_rcc.o(i.HAL_RCC_ClockConfig)
-    HAL_RCC_GetHCLKFreq                      0x080005ed   Thumb Code     6  stm32f0xx_hal_rcc.o(i.HAL_RCC_GetHCLKFreq)
-    HAL_RCC_GetPCLK1Freq                     0x080005f9   Thumb Code    20  stm32f0xx_hal_rcc.o(i.HAL_RCC_GetPCLK1Freq)
-    HAL_RCC_GetSysClockFreq                  0x08000619   Thumb Code    90  stm32f0xx_hal_rcc.o(i.HAL_RCC_GetSysClockFreq)
-    HAL_RCC_OscConfig                        0x080006a1   Thumb Code   966  stm32f0xx_hal_rcc.o(i.HAL_RCC_OscConfig)
-    HAL_SPI_ErrorCallback                    0x08000a79   Thumb Code     2  stm32f0xx_hal_spi.o(i.HAL_SPI_ErrorCallback)
-    HAL_SPI_IRQHandler                       0x08000a7d   Thumb Code   208  stm32f0xx_hal_spi.o(i.HAL_SPI_IRQHandler)
-    HAL_SPI_Init                             0x08000b51   Thumb Code   184  stm32f0xx_hal_spi.o(i.HAL_SPI_Init)
-    HAL_SPI_MspInit                          0x08000c09   Thumb Code    76  stm32f0xx_hal_msp.o(i.HAL_SPI_MspInit)
-    HAL_SPI_RxCpltCallback                   0x08000c5d   Thumb Code     2  stm32f0xx_hal_spi.o(i.HAL_SPI_RxCpltCallback)
-    HAL_SPI_TransmitReceive_IT               0x08000c61   Thumb Code   196  stm32f0xx_hal_spi.o(i.HAL_SPI_TransmitReceive_IT)
-    HAL_SPI_TxRxCpltCallback                 0x08000d35   Thumb Code   154  main.o(i.HAL_SPI_TxRxCpltCallback)
-    HAL_SYSTICK_CLKSourceConfig              0x08000de1   Thumb Code    20  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_CLKSourceConfig)
-    HAL_SYSTICK_Callback                     0x08000df9   Thumb Code     2  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_Callback)
-    HAL_SYSTICK_Config                       0x08000dfd   Thumb Code    38  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_Config)
-    HAL_SYSTICK_IRQHandler                   0x08000e2d   Thumb Code     8  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_IRQHandler)
-    HAL_TIMEx_MasterConfigSynchronization    0x08000e35   Thumb Code    72  stm32f0xx_hal_tim_ex.o(i.HAL_TIMEx_MasterConfigSynchronization)
-    HAL_TIM_Base_Init                        0x08000e7d   Thumb Code    52  stm32f0xx_hal_tim.o(i.HAL_TIM_Base_Init)
-    HAL_TIM_Base_MspInit                     0x08000eb1   Thumb Code    30  stm32f0xx_hal_msp.o(i.HAL_TIM_Base_MspInit)
-    HAL_TIM_Base_Start                       0x08000ed5   Thumb Code    24  stm32f0xx_hal_tim.o(i.HAL_TIM_Base_Start)
-    HAL_TIM_ConfigClockSource                0x08000eed   Thumb Code   238  stm32f0xx_hal_tim.o(i.HAL_TIM_ConfigClockSource)
-    HAL_UART_MspInit                         0x08000fdd   Thumb Code    62  stm32f0xx_hal_msp.o(i.HAL_UART_MspInit)
-    HAL_UART_Transmit                        0x08001025   Thumb Code   200  stm32f0xx_hal_uart.o(i.HAL_UART_Transmit)
-    HardFault_Handler                        0x080010ed   Thumb Code     2  stm32f0xx_it.o(i.HardFault_Handler)
-    NMI_Handler                              0x08001255   Thumb Code     2  stm32f0xx_it.o(i.NMI_Handler)
-    PendSV_Handler                           0x0800129d   Thumb Code     2  stm32f0xx_it.o(i.PendSV_Handler)
-    SPI1_IRQHandler                          0x080012a1   Thumb Code    10  stm32f0xx_it.o(i.SPI1_IRQHandler)
-    SVC_Handler                              0x08001593   Thumb Code     2  stm32f0xx_it.o(i.SVC_Handler)
-    SendBit                                  0x08001595   Thumb Code    54  main.o(i.SendBit)
-    SysTick_Handler                          0x080015cb   Thumb Code    12  stm32f0xx_it.o(i.SysTick_Handler)
-    SystemClock_Config                       0x080015d7   Thumb Code    90  main.o(i.SystemClock_Config)
-    SystemInit                               0x08001631   Thumb Code    78  system_stm32f0xx.o(i.SystemInit)
-    TIM_Base_SetConfig                       0x0800168d   Thumb Code   112  stm32f0xx_hal_tim.o(i.TIM_Base_SetConfig)
-    TIM_ETR_SetConfig                        0x08001711   Thumb Code    22  stm32f0xx_hal_tim.o(i.TIM_ETR_SetConfig)
-    UART_AdvFeatureConfig                    0x0800177f   Thumb Code   202  stm32f0xx_hal_uart.o(i.UART_AdvFeatureConfig)
-    UART_CheckIdleState                      0x08001849   Thumb Code    96  stm32f0xx_hal_uart.o(i.UART_CheckIdleState)
-    UART_SetConfig                           0x080018b1   Thumb Code   280  stm32f0xx_hal_uart.o(i.UART_SetConfig)
-    UART_WaitOnFlagUntilTimeout              0x080019e1   Thumb Code    98  stm32f0xx_hal_uart.o(i.UART_WaitOnFlagUntilTimeout)
-    __0printf$3                              0x08001a45   Thumb Code    24  printf3.o(i.__0printf$3)
-    __1printf$3                              0x08001a45   Thumb Code     0  printf3.o(i.__0printf$3)
-    __2printf                                0x08001a45   Thumb Code     0  printf3.o(i.__0printf$3)
-    __scatterload_copy                       0x08001a65   Thumb Code    14  handlers.o(i.__scatterload_copy)
-    __scatterload_null                       0x08001a73   Thumb Code     2  handlers.o(i.__scatterload_null)
-    __scatterload_zeroinit                   0x08001a75   Thumb Code    14  handlers.o(i.__scatterload_zeroinit)
-    delay_us                                 0x08001c51   Thumb Code    20  delay_us.o(i.delay_us)
-    delay_us_init                            0x08001c65   Thumb Code    12  delay_us.o(i.delay_us_init)
-    fputc                                    0x08001c75   Thumb Code    18  main.o(i.fputc)
-    kb_buf_add                               0x08001c8d   Thumb Code    44  helpers.o(i.kb_buf_add)
-    kb_buf_init                              0x08001cb9   Thumb Code    28  helpers.o(i.kb_buf_init)
-    kb_buf_is_full                           0x08001cd5   Thumb Code    22  helpers.o(i.kb_buf_is_full)
-    kb_buf_peek                              0x08001ceb   Thumb Code    32  helpers.o(i.kb_buf_peek)
-    kb_buf_pop                               0x08001d0b   Thumb Code    18  helpers.o(i.kb_buf_pop)
-    kb_buf_reset                             0x08001d1d   Thumb Code    28  helpers.o(i.kb_buf_reset)
-    main                                     0x08001d39   Thumb Code   168  main.o(i.main)
-    malloc                                   0x08001e05   Thumb Code    92  malloc.o(i.malloc)
-    micros                                   0x08001e71   Thumb Code    10  delay_us.o(i.micros)
-    protocol_status_lookup_init              0x08001e81   Thumb Code    22  main.o(i.protocol_status_lookup_init)
-    spi_error_dump_reboot                    0x08001e9d   Thumb Code    76  main.o(i.spi_error_dump_reboot)
-    wait_for_KBACK                           0x08001f19   Thumb Code    40  main.o(i.wait_for_KBACK)
-    boot_message                             0x08001f44   Data          59  main.o(.constdata)
-    AHBPrescTable                            0x08001f7f   Data          16  system_stm32f0xx.o(.constdata)
-    APBPrescTable                            0x08001f8f   Data           8  system_stm32f0xx.o(.constdata)
-    Region$$Table$$Base                      0x08001f98   Number         0  anon$$obj.o(Region$$Table)
-    Region$$Table$$Limit                     0x08001fb8   Number         0  anon$$obj.o(Region$$Table)
+    HAL_GPIO_TogglePin                       0x08000341   Thumb Code     8  stm32f0xx_hal_gpio.o(i.HAL_GPIO_TogglePin)
+    HAL_GPIO_WritePin                        0x08000349   Thumb Code    12  stm32f0xx_hal_gpio.o(i.HAL_GPIO_WritePin)
+    HAL_GetTick                              0x08000355   Thumb Code     6  stm32f0xx_hal.o(i.HAL_GetTick)
+    HAL_HalfDuplex_Init                      0x08000361   Thumb Code   118  stm32f0xx_hal_uart.o(i.HAL_HalfDuplex_Init)
+    HAL_IncTick                              0x080003d9   Thumb Code    10  stm32f0xx_hal.o(i.HAL_IncTick)
+    HAL_Init                                 0x080003e9   Thumb Code    26  stm32f0xx_hal.o(i.HAL_Init)
+    HAL_InitTick                             0x08000409   Thumb Code    34  stm32f0xx_hal.o(i.HAL_InitTick)
+    HAL_MspInit                              0x0800042d   Thumb Code    64  stm32f0xx_hal_msp.o(i.HAL_MspInit)
+    HAL_NVIC_EnableIRQ                       0x08000471   Thumb Code    14  stm32f0xx_hal_cortex.o(i.HAL_NVIC_EnableIRQ)
+    HAL_NVIC_SetPriority                     0x08000485   Thumb Code     8  stm32f0xx_hal_cortex.o(i.HAL_NVIC_SetPriority)
+    HAL_RCC_ClockConfig                      0x0800048d   Thumb Code   320  stm32f0xx_hal_rcc.o(i.HAL_RCC_ClockConfig)
+    HAL_RCC_GetHCLKFreq                      0x080005e1   Thumb Code     6  stm32f0xx_hal_rcc.o(i.HAL_RCC_GetHCLKFreq)
+    HAL_RCC_GetPCLK1Freq                     0x080005ed   Thumb Code    20  stm32f0xx_hal_rcc.o(i.HAL_RCC_GetPCLK1Freq)
+    HAL_RCC_GetSysClockFreq                  0x0800060d   Thumb Code    90  stm32f0xx_hal_rcc.o(i.HAL_RCC_GetSysClockFreq)
+    HAL_RCC_OscConfig                        0x08000695   Thumb Code   966  stm32f0xx_hal_rcc.o(i.HAL_RCC_OscConfig)
+    HAL_SPI_ErrorCallback                    0x08000a6d   Thumb Code     2  stm32f0xx_hal_spi.o(i.HAL_SPI_ErrorCallback)
+    HAL_SPI_IRQHandler                       0x08000a71   Thumb Code   208  stm32f0xx_hal_spi.o(i.HAL_SPI_IRQHandler)
+    HAL_SPI_Init                             0x08000b45   Thumb Code   184  stm32f0xx_hal_spi.o(i.HAL_SPI_Init)
+    HAL_SPI_MspInit                          0x08000bfd   Thumb Code    76  stm32f0xx_hal_msp.o(i.HAL_SPI_MspInit)
+    HAL_SPI_RxCpltCallback                   0x08000c51   Thumb Code     2  stm32f0xx_hal_spi.o(i.HAL_SPI_RxCpltCallback)
+    HAL_SPI_TransmitReceive_IT               0x08000c55   Thumb Code   196  stm32f0xx_hal_spi.o(i.HAL_SPI_TransmitReceive_IT)
+    HAL_SPI_TxRxCpltCallback                 0x08000d29   Thumb Code   154  main.o(i.HAL_SPI_TxRxCpltCallback)
+    HAL_SYSTICK_CLKSourceConfig              0x08000dd5   Thumb Code    20  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_CLKSourceConfig)
+    HAL_SYSTICK_Callback                     0x08000ded   Thumb Code     2  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_Callback)
+    HAL_SYSTICK_Config                       0x08000df1   Thumb Code    38  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_Config)
+    HAL_SYSTICK_IRQHandler                   0x08000e21   Thumb Code     8  stm32f0xx_hal_cortex.o(i.HAL_SYSTICK_IRQHandler)
+    HAL_TIMEx_MasterConfigSynchronization    0x08000e29   Thumb Code    72  stm32f0xx_hal_tim_ex.o(i.HAL_TIMEx_MasterConfigSynchronization)
+    HAL_TIM_Base_Init                        0x08000e71   Thumb Code    52  stm32f0xx_hal_tim.o(i.HAL_TIM_Base_Init)
+    HAL_TIM_Base_MspInit                     0x08000ea5   Thumb Code    30  stm32f0xx_hal_msp.o(i.HAL_TIM_Base_MspInit)
+    HAL_TIM_Base_Start                       0x08000ec9   Thumb Code    24  stm32f0xx_hal_tim.o(i.HAL_TIM_Base_Start)
+    HAL_TIM_ConfigClockSource                0x08000ee1   Thumb Code   238  stm32f0xx_hal_tim.o(i.HAL_TIM_ConfigClockSource)
+    HAL_UART_MspInit                         0x08000fd1   Thumb Code    62  stm32f0xx_hal_msp.o(i.HAL_UART_MspInit)
+    HAL_UART_Transmit                        0x08001019   Thumb Code   200  stm32f0xx_hal_uart.o(i.HAL_UART_Transmit)
+    HardFault_Handler                        0x080010e1   Thumb Code     2  stm32f0xx_it.o(i.HardFault_Handler)
+    NMI_Handler                              0x08001249   Thumb Code     2  stm32f0xx_it.o(i.NMI_Handler)
+    PendSV_Handler                           0x08001291   Thumb Code     2  stm32f0xx_it.o(i.PendSV_Handler)
+    SPI1_IRQHandler                          0x08001295   Thumb Code    10  stm32f0xx_it.o(i.SPI1_IRQHandler)
+    SVC_Handler                              0x08001587   Thumb Code     2  stm32f0xx_it.o(i.SVC_Handler)
+    SysTick_Handler                          0x08001589   Thumb Code    12  stm32f0xx_it.o(i.SysTick_Handler)
+    SystemClock_Config                       0x08001595   Thumb Code    90  main.o(i.SystemClock_Config)
+    SystemInit                               0x080015f1   Thumb Code    78  system_stm32f0xx.o(i.SystemInit)
+    TIM_Base_SetConfig                       0x0800164d   Thumb Code   112  stm32f0xx_hal_tim.o(i.TIM_Base_SetConfig)
+    TIM_ETR_SetConfig                        0x080016d1   Thumb Code    22  stm32f0xx_hal_tim.o(i.TIM_ETR_SetConfig)
+    UART_AdvFeatureConfig                    0x0800173f   Thumb Code   202  stm32f0xx_hal_uart.o(i.UART_AdvFeatureConfig)
+    UART_CheckIdleState                      0x08001809   Thumb Code    96  stm32f0xx_hal_uart.o(i.UART_CheckIdleState)
+    UART_SetConfig                           0x08001871   Thumb Code   280  stm32f0xx_hal_uart.o(i.UART_SetConfig)
+    UART_WaitOnFlagUntilTimeout              0x080019a1   Thumb Code    98  stm32f0xx_hal_uart.o(i.UART_WaitOnFlagUntilTimeout)
+    __0printf$3                              0x08001a05   Thumb Code    24  printf3.o(i.__0printf$3)
+    __1printf$3                              0x08001a05   Thumb Code     0  printf3.o(i.__0printf$3)
+    __2printf                                0x08001a05   Thumb Code     0  printf3.o(i.__0printf$3)
+    __scatterload_copy                       0x08001a25   Thumb Code    14  handlers.o(i.__scatterload_copy)
+    __scatterload_null                       0x08001a33   Thumb Code     2  handlers.o(i.__scatterload_null)
+    __scatterload_zeroinit                   0x08001a35   Thumb Code    14  handlers.o(i.__scatterload_zeroinit)
+    delay_us                                 0x08001c11   Thumb Code    20  delay_us.o(i.delay_us)
+    delay_us_init                            0x08001c25   Thumb Code    12  delay_us.o(i.delay_us_init)
+    fputc                                    0x08001c35   Thumb Code    18  main.o(i.fputc)
+    get_bit                                  0x08001c4d   Thumb Code    16  main.o(i.get_bit)
+    kb_buf_add                               0x08001c5d   Thumb Code    44  helpers.o(i.kb_buf_add)
+    kb_buf_init                              0x08001c89   Thumb Code    28  helpers.o(i.kb_buf_init)
+    kb_buf_is_full                           0x08001ca5   Thumb Code    22  helpers.o(i.kb_buf_is_full)
+    kb_buf_peek                              0x08001cbb   Thumb Code    32  helpers.o(i.kb_buf_peek)
+    kb_buf_pop                               0x08001cdb   Thumb Code    18  helpers.o(i.kb_buf_pop)
+    kb_buf_reset                             0x08001ced   Thumb Code    28  helpers.o(i.kb_buf_reset)
+    main                                     0x08001d09   Thumb Code   160  main.o(i.main)
+    malloc                                   0x08001dc9   Thumb Code    92  malloc.o(i.malloc)
+    micros                                   0x08001e35   Thumb Code    10  delay_us.o(i.micros)
+    protocol_status_lookup_init              0x08001e45   Thumb Code    22  main.o(i.protocol_status_lookup_init)
+    release_kb_line                          0x08001e61   Thumb Code    28  main.o(i.release_kb_line)
+    send_key                                 0x08001e7d   Thumb Code    48  main.o(i.send_key)
+    spi_error_dump_reboot                    0x08001ead   Thumb Code    76  main.o(i.spi_error_dump_reboot)
+    write_bit                                0x08001f29   Thumb Code    56  main.o(i.write_bit)
+    boot_message                             0x08001f60   Data          59  main.o(.constdata)
+    AHBPrescTable                            0x08001f9b   Data          16  system_stm32f0xx.o(.constdata)
+    APBPrescTable                            0x08001fab   Data           8  system_stm32f0xx.o(.constdata)
+    Region$$Table$$Base                      0x08001fb4   Number         0  anon$$obj.o(Region$$Table)
+    Region$$Table$$Limit                     0x08001fd4   Number         0  anon$$obj.o(Region$$Table)
    us_timer                                 0x20000000   Data           4  delay_us.o(.data)
    spi_error_occured                        0x20000004   Data           1  main.o(.data)
    led_off_after                            0x20000008   Data           4  main.o(.data)
@@ -1965,146 +1970,147 @@ Memory Map of the image

  Image Entry point : 0x080000c1

-  Load Region LR_IROM1 (Base: 0x08000000, Size: 0x00001fd8, Max: 0x00008000, ABSOLUTE)
+  Load Region LR_IROM1 (Base: 0x08000000, Size: 0x00001ff4, Max: 0x00008000, ABSOLUTE)

-    Execution Region ER_IROM1 (Exec base: 0x08000000, Load base: 0x08000000, Size: 0x00001fb8, Max: 0x00008000, ABSOLUTE)
+    Execution Region ER_IROM1 (Exec base: 0x08000000, Load base: 0x08000000, Size: 0x00001fd4, Max: 0x00008000, ABSOLUTE)

    Exec Addr    Load Addr    Size         Type   Attr      Idx    E Section Name        Object

    0x08000000   0x08000000   0x000000c0   Data   RO            3    RESET               startup_stm32f042x6.o
-    0x080000c0   0x080000c0   0x00000000   Code   RO         3502  * .ARM.Collect$$$$00000000  mc_p.l(entry.o)
-    0x080000c0   0x080000c0   0x00000004   Code   RO         3800    .ARM.Collect$$$$00000001  mc_p.l(entry2.o)
-    0x080000c4   0x080000c4   0x00000004   Code   RO         3803    .ARM.Collect$$$$00000004  mc_p.l(entry5.o)
-    0x080000c8   0x080000c8   0x00000000   Code   RO         3805    .ARM.Collect$$$$00000008  mc_p.l(entry7b.o)
-    0x080000c8   0x080000c8   0x00000000   Code   RO         3807    .ARM.Collect$$$$0000000A  mc_p.l(entry8b.o)
-    0x080000c8   0x080000c8   0x00000008   Code   RO         3808    .ARM.Collect$$$$0000000B  mc_p.l(entry9a.o)
-    0x080000d0   0x080000d0   0x00000000   Code   RO         3810    .ARM.Collect$$$$0000000D  mc_p.l(entry10a.o)
-    0x080000d0   0x080000d0   0x00000000   Code   RO         3812    .ARM.Collect$$$$0000000F  mc_p.l(entry11a.o)
-    0x080000d0   0x080000d0   0x00000004   Code   RO         3801    .ARM.Collect$$$$00002712  mc_p.l(entry2.o)
+    0x080000c0   0x080000c0   0x00000000   Code   RO         3518  * .ARM.Collect$$$$00000000  mc_p.l(entry.o)
+    0x080000c0   0x080000c0   0x00000004   Code   RO         3816    .ARM.Collect$$$$00000001  mc_p.l(entry2.o)
+    0x080000c4   0x080000c4   0x00000004   Code   RO         3819    .ARM.Collect$$$$00000004  mc_p.l(entry5.o)
+    0x080000c8   0x080000c8   0x00000000   Code   RO         3821    .ARM.Collect$$$$00000008  mc_p.l(entry7b.o)
+    0x080000c8   0x080000c8   0x00000000   Code   RO         3823    .ARM.Collect$$$$0000000A  mc_p.l(entry8b.o)
+    0x080000c8   0x080000c8   0x00000008   Code   RO         3824    .ARM.Collect$$$$0000000B  mc_p.l(entry9a.o)
+    0x080000d0   0x080000d0   0x00000000   Code   RO         3826    .ARM.Collect$$$$0000000D  mc_p.l(entry10a.o)
+    0x080000d0   0x080000d0   0x00000000   Code   RO         3828    .ARM.Collect$$$$0000000F  mc_p.l(entry11a.o)
+    0x080000d0   0x080000d0   0x00000004   Code   RO         3817    .ARM.Collect$$$$00002712  mc_p.l(entry2.o)
    0x080000d4   0x080000d4   0x00000058   Code   RO            4    .text               startup_stm32f042x6.o
-    0x0800012c   0x0800012c   0x0000002c   Code   RO         3505    .text               mc_p.l(uidiv.o)
-    0x08000158   0x08000158   0x00000024   Code   RO         3509    .text               mc_p.l(memseta.o)
-    0x0800017c   0x0800017c   0x00000024   Code   RO         3834    .text               mc_p.l(init.o)
-    0x080001a0   0x080001a0   0x00000048   Code   RO         2959    i.HAL_DMA_Abort_IT  stm32f0xx_hal_dma.o
-    0x080001e8   0x080001e8   0x0000001c   Code   RO         2288    i.HAL_Delay         stm32f0xx_hal.o
-    0x08000204   0x08000204   0x0000013c   Code   RO         2897    i.HAL_GPIO_Init     stm32f0xx_hal_gpio.o
-    0x08000340   0x08000340   0x0000000a   Code   RO         2899    i.HAL_GPIO_ReadPin  stm32f0xx_hal_gpio.o
-    0x0800034a   0x0800034a   0x00000008   Code   RO         2900    i.HAL_GPIO_TogglePin  stm32f0xx_hal_gpio.o
-    0x08000352   0x08000352   0x0000000c   Code   RO         2901    i.HAL_GPIO_WritePin  stm32f0xx_hal_gpio.o
-    0x0800035e   0x0800035e   0x00000002   PAD
-    0x08000360   0x08000360   0x0000000c   Code   RO         2292    i.HAL_GetTick       stm32f0xx_hal.o
-    0x0800036c   0x0800036c   0x00000076   Code   RO         1707    i.HAL_HalfDuplex_Init  stm32f0xx_hal_uart.o
-    0x080003e2   0x080003e2   0x00000002   PAD
-    0x080003e4   0x080003e4   0x00000010   Code   RO         2296    i.HAL_IncTick       stm32f0xx_hal.o
-    0x080003f4   0x080003f4   0x00000020   Code   RO         2297    i.HAL_Init          stm32f0xx_hal.o
-    0x08000414   0x08000414   0x00000022   Code   RO         2298    i.HAL_InitTick      stm32f0xx_hal.o
-    0x08000436   0x08000436   0x00000002   PAD
-    0x08000438   0x08000438   0x00000044   Code   RO          430    i.HAL_MspInit       stm32f0xx_hal_msp.o
-    0x0800047c   0x0800047c   0x00000014   Code   RO         3054    i.HAL_NVIC_EnableIRQ  stm32f0xx_hal_cortex.o
-    0x08000490   0x08000490   0x00000008   Code   RO         3058    i.HAL_NVIC_SetPriority  stm32f0xx_hal_cortex.o
-    0x08000498   0x08000498   0x00000154   Code   RO         2106    i.HAL_RCC_ClockConfig  stm32f0xx_hal_rcc.o
-    0x080005ec   0x080005ec   0x0000000c   Code   RO         2111    i.HAL_RCC_GetHCLKFreq  stm32f0xx_hal_rcc.o
-    0x080005f8   0x080005f8   0x00000020   Code   RO         2113    i.HAL_RCC_GetPCLK1Freq  stm32f0xx_hal_rcc.o
-    0x08000618   0x08000618   0x00000088   Code   RO         2114    i.HAL_RCC_GetSysClockFreq  stm32f0xx_hal_rcc.o
-    0x080006a0   0x080006a0   0x000003d8   Code   RO         2117    i.HAL_RCC_OscConfig  stm32f0xx_hal_rcc.o
-    0x08000a78   0x08000a78   0x00000002   Code   RO          493    i.HAL_SPI_ErrorCallback  stm32f0xx_hal_spi.o
-    0x08000a7a   0x08000a7a   0x00000002   PAD
-    0x08000a7c   0x08000a7c   0x000000d4   Code   RO          496    i.HAL_SPI_IRQHandler  stm32f0xx_hal_spi.o
-    0x08000b50   0x08000b50   0x000000b8   Code   RO          497    i.HAL_SPI_Init      stm32f0xx_hal_spi.o
-    0x08000c08   0x08000c08   0x00000054   Code   RO          432    i.HAL_SPI_MspInit   stm32f0xx_hal_msp.o
-    0x08000c5c   0x08000c5c   0x00000002   Code   RO          503    i.HAL_SPI_RxCpltCallback  stm32f0xx_hal_spi.o
-    0x08000c5e   0x08000c5e   0x00000002   PAD
-    0x08000c60   0x08000c60   0x000000d4   Code   RO          508    i.HAL_SPI_TransmitReceive_IT  stm32f0xx_hal_spi.o
-    0x08000d34   0x08000d34   0x000000ac   Code   RO          257    i.HAL_SPI_TxRxCpltCallback  main.o
-    0x08000de0   0x08000de0   0x00000018   Code   RO         3060    i.HAL_SYSTICK_CLKSourceConfig  stm32f0xx_hal_cortex.o
-    0x08000df8   0x08000df8   0x00000002   Code   RO         3061    i.HAL_SYSTICK_Callback  stm32f0xx_hal_cortex.o
-    0x08000dfa   0x08000dfa   0x00000002   PAD
-    0x08000dfc   0x08000dfc   0x00000030   Code   RO         3062    i.HAL_SYSTICK_Config  stm32f0xx_hal_cortex.o
-    0x08000e2c   0x08000e2c   0x00000008   Code   RO         3063    i.HAL_SYSTICK_IRQHandler  stm32f0xx_hal_cortex.o
-    0x08000e34   0x08000e34   0x00000048   Code   RO         1487    i.HAL_TIMEx_MasterConfigSynchronization  stm32f0xx_hal_tim_ex.o
-    0x08000e7c   0x08000e7c   0x00000034   Code   RO          831    i.HAL_TIM_Base_Init  stm32f0xx_hal_tim.o
-    0x08000eb0   0x08000eb0   0x00000024   Code   RO          434    i.HAL_TIM_Base_MspInit  stm32f0xx_hal_msp.o
-    0x08000ed4   0x08000ed4   0x00000018   Code   RO          834    i.HAL_TIM_Base_Start  stm32f0xx_hal_tim.o
-    0x08000eec   0x08000eec   0x000000ee   Code   RO          840    i.HAL_TIM_ConfigClockSource  stm32f0xx_hal_tim.o
-    0x08000fda   0x08000fda   0x00000002   PAD
-    0x08000fdc   0x08000fdc   0x00000048   Code   RO          436    i.HAL_UART_MspInit  stm32f0xx_hal_msp.o
-    0x08001024   0x08001024   0x000000c8   Code   RO         1737    i.HAL_UART_Transmit  stm32f0xx_hal_uart.o
-    0x080010ec   0x080010ec   0x00000002   Code   RO          376    i.HardFault_Handler  stm32f0xx_it.o
-    0x080010ee   0x080010ee   0x00000002   PAD
-    0x080010f0   0x080010f0   0x0000009c   Code   RO          258    i.MX_GPIO_Init      main.o
-    0x0800118c   0x0800118c   0x0000003c   Code   RO          259    i.MX_SPI1_Init      main.o
-    0x080011c8   0x080011c8   0x00000054   Code   RO          260    i.MX_TIM2_Init      main.o
-    0x0800121c   0x0800121c   0x00000038   Code   RO          261    i.MX_USART2_UART_Init  main.o
-    0x08001254   0x08001254   0x00000002   Code   RO          377    i.NMI_Handler       stm32f0xx_it.o
-    0x08001256   0x08001256   0x00000002   PAD
-    0x08001258   0x08001258   0x00000044   Code   RO         3064    i.NVIC_SetPriority  stm32f0xx_hal_cortex.o
-    0x0800129c   0x0800129c   0x00000002   Code   RO          378    i.PendSV_Handler    stm32f0xx_it.o
-    0x0800129e   0x0800129e   0x00000002   PAD
-    0x080012a0   0x080012a0   0x00000010   Code   RO          379    i.SPI1_IRQHandler   stm32f0xx_it.o
-    0x080012b0   0x080012b0   0x00000036   Code   RO          515    i.SPI_2linesRxISR_16BIT  stm32f0xx_hal_spi.o
-    0x080012e6   0x080012e6   0x0000005e   Code   RO          516    i.SPI_2linesRxISR_8BIT  stm32f0xx_hal_spi.o
-    0x08001344   0x08001344   0x00000034   Code   RO          517    i.SPI_2linesTxISR_16BIT  stm32f0xx_hal_spi.o
-    0x08001378   0x08001378   0x00000048   Code   RO          518    i.SPI_2linesTxISR_8BIT  stm32f0xx_hal_spi.o
-    0x080013c0   0x080013c0   0x00000052   Code   RO          521    i.SPI_CloseRxTx_ISR  stm32f0xx_hal_spi.o
-    0x08001412   0x08001412   0x00000012   Code   RO          524    i.SPI_DMAAbortOnError  stm32f0xx_hal_spi.o
-    0x08001424   0x08001424   0x0000004c   Code   RO          535    i.SPI_EndRxTxTransaction  stm32f0xx_hal_spi.o
-    0x08001470   0x08001470   0x00000096   Code   RO          540    i.SPI_WaitFifoStateUntilTimeout  stm32f0xx_hal_spi.o
-    0x08001506   0x08001506   0x0000008c   Code   RO          541    i.SPI_WaitFlagStateUntilTimeout  stm32f0xx_hal_spi.o
-    0x08001592   0x08001592   0x00000002   Code   RO          380    i.SVC_Handler       stm32f0xx_it.o
-    0x08001594   0x08001594   0x00000036   Code   RO          262    i.SendBit           main.o
-    0x080015ca   0x080015ca   0x0000000c   Code   RO          381    i.SysTick_Handler   stm32f0xx_it.o
-    0x080015d6   0x080015d6   0x0000005a   Code   RO          263    i.SystemClock_Config  main.o
-    0x08001630   0x08001630   0x0000005c   Code   RO         3471    i.SystemInit        system_stm32f0xx.o
-    0x0800168c   0x0800168c   0x00000084   Code   RO          917    i.TIM_Base_SetConfig  stm32f0xx_hal_tim.o
-    0x08001710   0x08001710   0x00000016   Code   RO          924    i.TIM_ETR_SetConfig  stm32f0xx_hal_tim.o
-    0x08001726   0x08001726   0x00000010   Code   RO          925    i.TIM_ITRx_SetConfig  stm32f0xx_hal_tim.o
-    0x08001736   0x08001736   0x00000022   Code   RO          931    i.TIM_TI1_ConfigInputStage  stm32f0xx_hal_tim.o
-    0x08001758   0x08001758   0x00000026   Code   RO          933    i.TIM_TI2_ConfigInputStage  stm32f0xx_hal_tim.o
-    0x0800177e   0x0800177e   0x000000ca   Code   RO         1742    i.UART_AdvFeatureConfig  stm32f0xx_hal_uart.o
-    0x08001848   0x08001848   0x00000068   Code   RO         1743    i.UART_CheckIdleState  stm32f0xx_hal_uart.o
-    0x080018b0   0x080018b0   0x00000130   Code   RO         1758    i.UART_SetConfig    stm32f0xx_hal_uart.o
-    0x080019e0   0x080019e0   0x00000062   Code   RO         1760    i.UART_WaitOnFlagUntilTimeout  stm32f0xx_hal_uart.o
+    0x0800012c   0x0800012c   0x0000002c   Code   RO         3521    .text               mc_p.l(uidiv.o)
+    0x08000158   0x08000158   0x00000024   Code   RO         3525    .text               mc_p.l(memseta.o)
+    0x0800017c   0x0800017c   0x00000024   Code   RO         3850    .text               mc_p.l(init.o)
+    0x080001a0   0x080001a0   0x00000048   Code   RO         2975    i.HAL_DMA_Abort_IT  stm32f0xx_hal_dma.o
+    0x080001e8   0x080001e8   0x0000001c   Code   RO         2304    i.HAL_Delay         stm32f0xx_hal.o
+    0x08000204   0x08000204   0x0000013c   Code   RO         2913    i.HAL_GPIO_Init     stm32f0xx_hal_gpio.o
+    0x08000340   0x08000340   0x00000008   Code   RO         2916    i.HAL_GPIO_TogglePin  stm32f0xx_hal_gpio.o
+    0x08000348   0x08000348   0x0000000c   Code   RO         2917    i.HAL_GPIO_WritePin  stm32f0xx_hal_gpio.o
+    0x08000354   0x08000354   0x0000000c   Code   RO         2308    i.HAL_GetTick       stm32f0xx_hal.o
+    0x08000360   0x08000360   0x00000076   Code   RO         1723    i.HAL_HalfDuplex_Init  stm32f0xx_hal_uart.o
+    0x080003d6   0x080003d6   0x00000002   PAD
+    0x080003d8   0x080003d8   0x00000010   Code   RO         2312    i.HAL_IncTick       stm32f0xx_hal.o
+    0x080003e8   0x080003e8   0x00000020   Code   RO         2313    i.HAL_Init          stm32f0xx_hal.o
+    0x08000408   0x08000408   0x00000022   Code   RO         2314    i.HAL_InitTick      stm32f0xx_hal.o
+    0x0800042a   0x0800042a   0x00000002   PAD
+    0x0800042c   0x0800042c   0x00000044   Code   RO          446    i.HAL_MspInit       stm32f0xx_hal_msp.o
+    0x08000470   0x08000470   0x00000014   Code   RO         3070    i.HAL_NVIC_EnableIRQ  stm32f0xx_hal_cortex.o
+    0x08000484   0x08000484   0x00000008   Code   RO         3074    i.HAL_NVIC_SetPriority  stm32f0xx_hal_cortex.o
+    0x0800048c   0x0800048c   0x00000154   Code   RO         2122    i.HAL_RCC_ClockConfig  stm32f0xx_hal_rcc.o
+    0x080005e0   0x080005e0   0x0000000c   Code   RO         2127    i.HAL_RCC_GetHCLKFreq  stm32f0xx_hal_rcc.o
+    0x080005ec   0x080005ec   0x00000020   Code   RO         2129    i.HAL_RCC_GetPCLK1Freq  stm32f0xx_hal_rcc.o
+    0x0800060c   0x0800060c   0x00000088   Code   RO         2130    i.HAL_RCC_GetSysClockFreq  stm32f0xx_hal_rcc.o
+    0x08000694   0x08000694   0x000003d8   Code   RO         2133    i.HAL_RCC_OscConfig  stm32f0xx_hal_rcc.o
+    0x08000a6c   0x08000a6c   0x00000002   Code   RO          509    i.HAL_SPI_ErrorCallback  stm32f0xx_hal_spi.o
+    0x08000a6e   0x08000a6e   0x00000002   PAD
+    0x08000a70   0x08000a70   0x000000d4   Code   RO          512    i.HAL_SPI_IRQHandler  stm32f0xx_hal_spi.o
+    0x08000b44   0x08000b44   0x000000b8   Code   RO          513    i.HAL_SPI_Init      stm32f0xx_hal_spi.o
+    0x08000bfc   0x08000bfc   0x00000054   Code   RO          448    i.HAL_SPI_MspInit   stm32f0xx_hal_msp.o
+    0x08000c50   0x08000c50   0x00000002   Code   RO          519    i.HAL_SPI_RxCpltCallback  stm32f0xx_hal_spi.o
+    0x08000c52   0x08000c52   0x00000002   PAD
+    0x08000c54   0x08000c54   0x000000d4   Code   RO          524    i.HAL_SPI_TransmitReceive_IT  stm32f0xx_hal_spi.o
+    0x08000d28   0x08000d28   0x000000ac   Code   RO          257    i.HAL_SPI_TxRxCpltCallback  main.o
+    0x08000dd4   0x08000dd4   0x00000018   Code   RO         3076    i.HAL_SYSTICK_CLKSourceConfig  stm32f0xx_hal_cortex.o
+    0x08000dec   0x08000dec   0x00000002   Code   RO         3077    i.HAL_SYSTICK_Callback  stm32f0xx_hal_cortex.o
+    0x08000dee   0x08000dee   0x00000002   PAD
+    0x08000df0   0x08000df0   0x00000030   Code   RO         3078    i.HAL_SYSTICK_Config  stm32f0xx_hal_cortex.o
+    0x08000e20   0x08000e20   0x00000008   Code   RO         3079    i.HAL_SYSTICK_IRQHandler  stm32f0xx_hal_cortex.o
+    0x08000e28   0x08000e28   0x00000048   Code   RO         1503    i.HAL_TIMEx_MasterConfigSynchronization  stm32f0xx_hal_tim_ex.o
+    0x08000e70   0x08000e70   0x00000034   Code   RO          847    i.HAL_TIM_Base_Init  stm32f0xx_hal_tim.o
+    0x08000ea4   0x08000ea4   0x00000024   Code   RO          450    i.HAL_TIM_Base_MspInit  stm32f0xx_hal_msp.o
+    0x08000ec8   0x08000ec8   0x00000018   Code   RO          850    i.HAL_TIM_Base_Start  stm32f0xx_hal_tim.o
+    0x08000ee0   0x08000ee0   0x000000ee   Code   RO          856    i.HAL_TIM_ConfigClockSource  stm32f0xx_hal_tim.o
+    0x08000fce   0x08000fce   0x00000002   PAD
+    0x08000fd0   0x08000fd0   0x00000048   Code   RO          452    i.HAL_UART_MspInit  stm32f0xx_hal_msp.o
+    0x08001018   0x08001018   0x000000c8   Code   RO         1753    i.HAL_UART_Transmit  stm32f0xx_hal_uart.o
+    0x080010e0   0x080010e0   0x00000002   Code   RO          392    i.HardFault_Handler  stm32f0xx_it.o
+    0x080010e2   0x080010e2   0x00000002   PAD
+    0x080010e4   0x080010e4   0x0000009c   Code   RO          258    i.MX_GPIO_Init      main.o
+    0x08001180   0x08001180   0x0000003c   Code   RO          259    i.MX_SPI1_Init      main.o
+    0x080011bc   0x080011bc   0x00000054   Code   RO          260    i.MX_TIM2_Init      main.o
+    0x08001210   0x08001210   0x00000038   Code   RO          261    i.MX_USART2_UART_Init  main.o
+    0x08001248   0x08001248   0x00000002   Code   RO          393    i.NMI_Handler       stm32f0xx_it.o
+    0x0800124a   0x0800124a   0x00000002   PAD
+    0x0800124c   0x0800124c   0x00000044   Code   RO         3080    i.NVIC_SetPriority  stm32f0xx_hal_cortex.o
+    0x08001290   0x08001290   0x00000002   Code   RO          394    i.PendSV_Handler    stm32f0xx_it.o
+    0x08001292   0x08001292   0x00000002   PAD
+    0x08001294   0x08001294   0x00000010   Code   RO          395    i.SPI1_IRQHandler   stm32f0xx_it.o
+    0x080012a4   0x080012a4   0x00000036   Code   RO          531    i.SPI_2linesRxISR_16BIT  stm32f0xx_hal_spi.o
+    0x080012da   0x080012da   0x0000005e   Code   RO          532    i.SPI_2linesRxISR_8BIT  stm32f0xx_hal_spi.o
+    0x08001338   0x08001338   0x00000034   Code   RO          533    i.SPI_2linesTxISR_16BIT  stm32f0xx_hal_spi.o
+    0x0800136c   0x0800136c   0x00000048   Code   RO          534    i.SPI_2linesTxISR_8BIT  stm32f0xx_hal_spi.o
+    0x080013b4   0x080013b4   0x00000052   Code   RO          537    i.SPI_CloseRxTx_ISR  stm32f0xx_hal_spi.o
+    0x08001406   0x08001406   0x00000012   Code   RO          540    i.SPI_DMAAbortOnError  stm32f0xx_hal_spi.o
+    0x08001418   0x08001418   0x0000004c   Code   RO          551    i.SPI_EndRxTxTransaction  stm32f0xx_hal_spi.o
+    0x08001464   0x08001464   0x00000096   Code   RO          556    i.SPI_WaitFifoStateUntilTimeout  stm32f0xx_hal_spi.o
+    0x080014fa   0x080014fa   0x0000008c   Code   RO          557    i.SPI_WaitFlagStateUntilTimeout  stm32f0xx_hal_spi.o
+    0x08001586   0x08001586   0x00000002   Code   RO          396    i.SVC_Handler       stm32f0xx_it.o
+    0x08001588   0x08001588   0x0000000c   Code   RO          397    i.SysTick_Handler   stm32f0xx_it.o
+    0x08001594   0x08001594   0x0000005a   Code   RO          262    i.SystemClock_Config  main.o
+    0x080015ee   0x080015ee   0x00000002   PAD
+    0x080015f0   0x080015f0   0x0000005c   Code   RO         3487    i.SystemInit        system_stm32f0xx.o
+    0x0800164c   0x0800164c   0x00000084   Code   RO          933    i.TIM_Base_SetConfig  stm32f0xx_hal_tim.o
+    0x080016d0   0x080016d0   0x00000016   Code   RO          940    i.TIM_ETR_SetConfig  stm32f0xx_hal_tim.o
+    0x080016e6   0x080016e6   0x00000010   Code   RO          941    i.TIM_ITRx_SetConfig  stm32f0xx_hal_tim.o
+    0x080016f6   0x080016f6   0x00000022   Code   RO          947    i.TIM_TI1_ConfigInputStage  stm32f0xx_hal_tim.o
+    0x08001718   0x08001718   0x00000026   Code   RO          949    i.TIM_TI2_ConfigInputStage  stm32f0xx_hal_tim.o
+    0x0800173e   0x0800173e   0x000000ca   Code   RO         1758    i.UART_AdvFeatureConfig  stm32f0xx_hal_uart.o
+    0x08001808   0x08001808   0x00000068   Code   RO         1759    i.UART_CheckIdleState  stm32f0xx_hal_uart.o
+    0x08001870   0x08001870   0x00000130   Code   RO         1774    i.UART_SetConfig    stm32f0xx_hal_uart.o
+    0x080019a0   0x080019a0   0x00000062   Code   RO         1776    i.UART_WaitOnFlagUntilTimeout  stm32f0xx_hal_uart.o
+    0x08001a02   0x08001a02   0x00000002   PAD
+    0x08001a04   0x08001a04   0x00000020   Code   RO         3616    i.__0printf$3       mc_p.l(printf3.o)
+    0x08001a24   0x08001a24   0x0000000e   Code   RO         3862    i.__scatterload_copy  mc_p.l(handlers.o)
+    0x08001a32   0x08001a32   0x00000002   Code   RO         3863    i.__scatterload_null  mc_p.l(handlers.o)
+    0x08001a34   0x08001a34   0x0000000e   Code   RO         3864    i.__scatterload_zeroinit  mc_p.l(handlers.o)
    0x08001a42   0x08001a42   0x00000002   PAD
-    0x08001a44   0x08001a44   0x00000020   Code   RO         3600    i.__0printf$3       mc_p.l(printf3.o)
-    0x08001a64   0x08001a64   0x0000000e   Code   RO         3846    i.__scatterload_copy  mc_p.l(handlers.o)
-    0x08001a72   0x08001a72   0x00000002   Code   RO         3847    i.__scatterload_null  mc_p.l(handlers.o)
-    0x08001a74   0x08001a74   0x0000000e   Code   RO         3848    i.__scatterload_zeroinit  mc_p.l(handlers.o)
-    0x08001a82   0x08001a82   0x00000002   PAD
-    0x08001a84   0x08001a84   0x000001cc   Code   RO         3607    i._printf_core      mc_p.l(printf3.o)
-    0x08001c50   0x08001c50   0x00000014   Code   RO           12    i.delay_us          delay_us.o
-    0x08001c64   0x08001c64   0x00000010   Code   RO           13    i.delay_us_init     delay_us.o
-    0x08001c74   0x08001c74   0x00000018   Code   RO          266    i.fputc             main.o
-    0x08001c8c   0x08001c8c   0x0000002c   Code   RO          149    i.kb_buf_add        helpers.o
-    0x08001cb8   0x08001cb8   0x0000001c   Code   RO          150    i.kb_buf_init       helpers.o
-    0x08001cd4   0x08001cd4   0x00000016   Code   RO          152    i.kb_buf_is_full    helpers.o
-    0x08001cea   0x08001cea   0x00000020   Code   RO          153    i.kb_buf_peek       helpers.o
-    0x08001d0a   0x08001d0a   0x00000012   Code   RO          154    i.kb_buf_pop        helpers.o
-    0x08001d1c   0x08001d1c   0x0000001c   Code   RO          155    i.kb_buf_reset      helpers.o
-    0x08001d38   0x08001d38   0x000000cc   Code   RO          269    i.main              main.o
-    0x08001e04   0x08001e04   0x0000006c   Code   RO         3773    i.malloc            mc_p.l(malloc.o)
-    0x08001e70   0x08001e70   0x00000010   Code   RO           14    i.micros            delay_us.o
-    0x08001e80   0x08001e80   0x0000001c   Code   RO          270    i.protocol_status_lookup_init  main.o
-    0x08001e9c   0x08001e9c   0x0000007c   Code   RO          271    i.spi_error_dump_reboot  main.o
-    0x08001f18   0x08001f18   0x0000002c   Code   RO          272    i.wait_for_KBACK    main.o
-    0x08001f44   0x08001f44   0x0000003b   Data   RO          278    .constdata          main.o
-    0x08001f7f   0x08001f7f   0x00000010   Data   RO         3472    .constdata          system_stm32f0xx.o
-    0x08001f8f   0x08001f8f   0x00000008   Data   RO         3473    .constdata          system_stm32f0xx.o
-    0x08001f97   0x08001f97   0x00000001   PAD
-    0x08001f98   0x08001f98   0x00000020   Data   RO         3844    Region$$Table       anon$$obj.o
+    0x08001a44   0x08001a44   0x000001cc   Code   RO         3623    i._printf_core      mc_p.l(printf3.o)
+    0x08001c10   0x08001c10   0x00000014   Code   RO           12    i.delay_us          delay_us.o
+    0x08001c24   0x08001c24   0x00000010   Code   RO           13    i.delay_us_init     delay_us.o
+    0x08001c34   0x08001c34   0x00000018   Code   RO          265    i.fputc             main.o
+    0x08001c4c   0x08001c4c   0x00000010   Code   RO          266    i.get_bit           main.o
+    0x08001c5c   0x08001c5c   0x0000002c   Code   RO          149    i.kb_buf_add        helpers.o
+    0x08001c88   0x08001c88   0x0000001c   Code   RO          150    i.kb_buf_init       helpers.o
+    0x08001ca4   0x08001ca4   0x00000016   Code   RO          152    i.kb_buf_is_full    helpers.o
+    0x08001cba   0x08001cba   0x00000020   Code   RO          153    i.kb_buf_peek       helpers.o
+    0x08001cda   0x08001cda   0x00000012   Code   RO          154    i.kb_buf_pop        helpers.o
+    0x08001cec   0x08001cec   0x0000001c   Code   RO          155    i.kb_buf_reset      helpers.o
+    0x08001d08   0x08001d08   0x000000c0   Code   RO          269    i.main              main.o
+    0x08001dc8   0x08001dc8   0x0000006c   Code   RO         3789    i.malloc            mc_p.l(malloc.o)
+    0x08001e34   0x08001e34   0x00000010   Code   RO           14    i.micros            delay_us.o
+    0x08001e44   0x08001e44   0x0000001c   Code   RO          270    i.protocol_status_lookup_init  main.o
+    0x08001e60   0x08001e60   0x0000001c   Code   RO          271    i.release_kb_line   main.o
+    0x08001e7c   0x08001e7c   0x00000030   Code   RO          272    i.send_key          main.o
+    0x08001eac   0x08001eac   0x0000007c   Code   RO          273    i.spi_error_dump_reboot  main.o
+    0x08001f28   0x08001f28   0x00000038   Code   RO          275    i.write_bit         main.o
+    0x08001f60   0x08001f60   0x0000003b   Data   RO          281    .constdata          main.o
+    0x08001f9b   0x08001f9b   0x00000010   Data   RO         3488    .constdata          system_stm32f0xx.o
+    0x08001fab   0x08001fab   0x00000008   Data   RO         3489    .constdata          system_stm32f0xx.o
+    0x08001fb3   0x08001fb3   0x00000001   PAD
+    0x08001fb4   0x08001fb4   0x00000020   Data   RO         3860    Region$$Table       anon$$obj.o


-    Execution Region RW_IRAM1 (Exec base: 0x20000000, Load base: 0x08001fb8, Size: 0x00000790, Max: 0x00001800, ABSOLUTE)
+    Execution Region RW_IRAM1 (Exec base: 0x20000000, Load base: 0x08001fd4, Size: 0x00000790, Max: 0x00001800, ABSOLUTE)

    Exec Addr    Load Addr    Size         Type   Attr      Idx    E Section Name        Object

-    0x20000000   0x08001fb8   0x00000004   Data   RW           15    .data               delay_us.o
-    0x20000004   0x08001fbc   0x00000008   Data   RW          279    .data               main.o
-    0x2000000c   0x08001fc4   0x00000004   Data   RW         2303    .data               stm32f0xx_hal.o
-    0x20000010   0x08001fc8   0x00000004   Data   RW         3474    .data               system_stm32f0xx.o
-    0x20000014   0x08001fcc   0x00000004   Data   RW         3814    .data               mc_p.l(stdout.o)
-    0x20000018   0x08001fd0   0x00000004   Data   RW         3821    .data               mc_p.l(mvars.o)
-    0x2000001c   0x08001fd4   0x00000004   Data   RW         3822    .data               mc_p.l(mvars.o)
-    0x20000020        -       0x00000170   Zero   RW          273    .bss                main.o
+    0x20000000   0x08001fd4   0x00000004   Data   RW           15    .data               delay_us.o
+    0x20000004   0x08001fd8   0x00000008   Data   RW          282    .data               main.o
+    0x2000000c   0x08001fe0   0x00000004   Data   RW         2319    .data               stm32f0xx_hal.o
+    0x20000010   0x08001fe4   0x00000004   Data   RW         3490    .data               system_stm32f0xx.o
+    0x20000014   0x08001fe8   0x00000004   Data   RW         3830    .data               mc_p.l(stdout.o)
+    0x20000018   0x08001fec   0x00000004   Data   RW         3837    .data               mc_p.l(mvars.o)
+    0x2000001c   0x08001ff0   0x00000004   Data   RW         3838    .data               mc_p.l(mvars.o)
+    0x20000020        -       0x00000170   Zero   RW          276    .bss                main.o
    0x20000190        -       0x00000200   Zero   RW            2    HEAP                startup_stm32f042x6.o
    0x20000390        -       0x00000400   Zero   RW            1    STACK               startup_stm32f042x6.o

@@ -2118,12 +2124,12 @@ Image component sizes

        52         10          0          4          0     449275   delay_us.o
       172          0          0          0          0       4930   helpers.o
-      1096        150         59          8        368      14721   main.o
+      1134        142         59          8        368      15794   main.o
        88         38        192          0       1536        644   startup_stm32f042x6.o
       122         18          0          4          0       3619   stm32f0xx_hal.o
       178         28          0          0          0      10515   stm32f0xx_hal_cortex.o
        72          0          0          0          0       1099   stm32f0xx_hal_dma.o
-       346         22          0          0          0       3432   stm32f0xx_hal_gpio.o
+       336         22          0          0          0       2813   stm32f0xx_hal_gpio.o
       260         28          0          0          0       2666   stm32f0xx_hal_msp.o
      1504        102          0          0          0       5169   stm32f0xx_hal_rcc.o
      1350         20          0          0          0      10502   stm32f0xx_hal_spi.o
@@ -2134,7 +2140,7 @@ Image component sizes
        92         14         24          4          0       1135   system_stm32f0xx.o

    ----------------------------------------------------------------------
-      7044        488        308         20       1904     523893   Object Totals
+      7072        480        308         20       1904     524347   Object Totals
         0          0         32          0          0          0   (incl. Generated)
        22          0          1          0          0          0   (incl. Padding)

@@ -2179,15 +2185,15 @@ Image component sizes

      Code (inc. data)   RO Data    RW Data    ZI Data      Debug   

-      7812        532        308         32       1904     520965   Grand Totals
-      7812        532        308         32       1904     520965   ELF Image Totals
-      7812        532        308         32          0          0   ROM Totals
+      7840        524        308         32       1904     521375   Grand Totals
+      7840        524        308         32       1904     521375   ELF Image Totals
+      7840        524        308         32          0          0   ROM Totals

 ==============================================================================

-    Total RO  Size (Code + RO Data)                 8120 (   7.93kB)
+    Total RO  Size (Code + RO Data)                 8148 (   7.96kB)
    Total RW  Size (RW Data + ZI Data)              1936 (   1.89kB)
-    Total ROM Size (Code + RO Data + RW Data)       8152 (   7.96kB)
+    Total ROM Size (Code + RO Data + RW Data)       8180 (   7.99kB)

 ==============================================================================

--- a/1/MDK-ARM/my_adb/my_adb_my_adb.dep
+++ b/1/MDK-ARM/my_adb/my_adb_my_adb.dep
@@ -75,7 +75,7 @@ I (../Inc/shared.h)(0x617487BD)
 I (../Inc/main.h)(0x636C271F)
 I (../Drivers/STM32F0xx_HAL_Driver/Inc/stm32f0xx_hal_rcc.h)(0x5DFA0893)
 I (../Drivers/STM32F0xx_HAL_Driver/Inc/stm32f0xx_hal_def.h)(0x5DFA0893)
-I (../Drivers/CMSIS/Device/ST/STM32F0xx/Include/stm32f0xx.h)(0x5DFA0880)
+I (../Drivers/CMSIS/Device/ST/STM32F0xx/Include/stm32f0xx.h)(0x5DFA0880)
 I (../Drivers/CMSIS/Device/ST/STM32F0xx/Include/stm32f042x6.h)(0x5DFA0880)
 I (../Drivers/CMSIS/Include/core_cm0.h)(0x5DFA0892)
 I (C:\Keil_v5\ARM\ARMCC\include\stdint.h)(0x5D9B4298)
--- a/firmware/sirius
+++ b/firmware/sirius
@@ -196,12 +196,19 @@ void protocol_status_lookup_init(void)
 #define KB_WRITE_ERROR 2
 #define SIRIUS_1_KB_BIT_ACK_TIMEOUT_MS 20

-uint8_t wait_for_KBACK(void)
+void release_kb_line(void)
 {
+  HAL_GPIO_WritePin(KBDATA_GPIO_Port, KBDATA_Pin, GPIO_PIN_SET);
+  HAL_GPIO_WritePin(KBRDY_GPIO_Port, KBRDY_Pin, GPIO_PIN_SET);
+}
+
+uint8_t wait_for_KBACK(uint8_t level)
+{
+  return KB_WRITE_SUCCESS;
  uint32_t entry_time = HAL_GetTick();
  while(1)
  {
-    if(HAL_GPIO_ReadPin(KBACK_GPIO_Port, KBACK_Pin) == GPIO_PIN_SET)
+    if(HAL_GPIO_ReadPin(KBACK_GPIO_Port, KBACK_Pin) == level)
      return KB_WRITE_SUCCESS;
    if(HAL_GetTick() - entry_time > SIRIUS_1_KB_BIT_ACK_TIMEOUT_MS)
      return KB_WRITE_TIMEOUT;
@@ -209,15 +216,35 @@ uint8_t wait_for_KBACK(void)
  return KB_WRITE_ERROR;
 }

-uint8_t SendBit(uint8_t value)
+uint8_t write_bit(uint8_t bit)
 {
-  HAL_GPIO_WritePin(KBDATA_GPIO_Port, KBDATA_Pin, value);
+  HAL_GPIO_WritePin(KBDATA_GPIO_Port, KBDATA_Pin, bit);
  HAL_GPIO_WritePin(KBRDY_GPIO_Port, KBRDY_Pin, GPIO_PIN_RESET);
-  // while(HAL_GPIO_ReadPin(KBACK_GPIO_Port, KBACK_Pin));
+  if(wait_for_KBACK(GPIO_PIN_RESET) != KB_WRITE_SUCCESS)
+    return KB_WRITE_TIMEOUT;
  delay_us(400);
  HAL_GPIO_WritePin(KBRDY_GPIO_Port, KBRDY_Pin, GPIO_PIN_SET);
-  // while(!digitalRead(KBACK));
+  if(wait_for_KBACK(GPIO_PIN_SET) != KB_WRITE_SUCCESS)
+    return KB_WRITE_TIMEOUT;
  delay_us(400);
+  return KB_WRITE_SUCCESS;
+}
+
+uint8_t get_bit(uint8_t x, uint8_t n)
+{
+  return (x & (1 << n)) ? 1 : 0;
+}
+
+uint8_t send_key(uint8_t data, uint8_t key_status)
+{
+  data &= 0x7f;
+  if(key_status)
+    data |= 0x80;
+  for (int i = 0; i < 8; ++i)
+    write_bit(get_bit(data, i));
+  write_bit(0); // stop bit
+  release_kb_line();
+  return KB_WRITE_SUCCESS;
 }

 /* USER CODE END 0 */
@@ -278,12 +305,9 @@ int main(void)
  /* USER CODE BEGIN 3 */
    if(kb_buf_peek(&my_kb_buf, &buffered_code, &buffered_value) == 0)
    {
-      SendBit(1);
+      send_key(0x28, buffered_value);
      kb_buf_pop(&my_kb_buf);
    }
-
-    printf("%d\n", wait_for_KBACK());
-
  }
  /* USER CODE END 3 */

--- a/firmware/sirius
+++ b/firmware/sirius
@@ -1,3 +1,30 @@
 HAL_GPIO_TogglePin(KBDATA_GPIO_Port, KBDATA_Pin);
    HAL_GPIO_TogglePin(KBRDY_GPIO_Port, KBRDY_Pin);
    HAL_Delay(10);
+
+// uint8_t write_stop_bit()
+// {
+//   HAL_GPIO_WritePin(KBDATA_GPIO_Port, KBDATA_Pin, GPIO_PIN_RESET);
+//   HAL_GPIO_WritePin(KBRDY_GPIO_Port, KBRDY_Pin, GPIO_PIN_RESET);
+//   if(wait_for_KBACK(GPIO_PIN_RESET) != KB_WRITE_SUCCESS)
+//     return KB_WRITE_TIMEOUT;
+//   HAL_GPIO_WritePin(KBDATA_GPIO_Port, KBDATA_Pin, GPIO_PIN_SET);
+//   HAL_GPIO_WritePin(KBRDY_GPIO_Port, KBRDY_Pin, GPIO_PIN_SET);
+//   HAL_Delay(1);
+//   if(wait_for_KBACK(GPIO_PIN_SET) != KB_WRITE_SUCCESS)
+//     return KB_WRITE_TIMEOUT;
+//   return KB_WRITE_SUCCESS;
+// }
+uint8_t send_key(uint8_t data, uint8_t key_status)
+{
+  for (int i = 0; i < 7; ++i)
+  {
+    if(write_bit(get_bit(data, i)) != KB_WRITE_SUCCESS)
+      return KB_WRITE_TIMEOUT;
+  }
+  if(write_bit(key_status) != KB_WRITE_SUCCESS)
+    return KB_WRITE_TIMEOUT
+  if(write_bit(0) != KB_WRITE_SUCCESS) // stop bit
+    return KB_WRITE_TIMEOUT
+  return KB_WRITE_SUCCESS;
+}