started working on OG macintosh protocol

pcb/pboard_apple_all/apple_all_f072.ioc

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+#MicroXplorer Configuration settings - do not modify
+File.Version=6
+I2C1.IPParameters=Timing
+I2C1.Timing=0x20303E5D
+KeepUserPlacement=false
+Mcu.Family=STM32F0
+Mcu.IP0=I2C1
+Mcu.IP1=NVIC
+Mcu.IP2=RCC
+Mcu.IP3=SPI1
+Mcu.IP4=SYS
+Mcu.IP5=USART1
+Mcu.IP6=USB
+Mcu.IPNb=7
+Mcu.Name=STM32F072C(8-B)Tx
+Mcu.Package=LQFP48
+Mcu.Pin0=PC13
+Mcu.Pin1=PA4
+Mcu.Pin10=PA14
+Mcu.Pin11=PA15
+Mcu.Pin12=PB3
+Mcu.Pin13=PB6
+Mcu.Pin14=PB7
+Mcu.Pin15=VP_SYS_VS_Systick
+Mcu.Pin2=PA5
+Mcu.Pin3=PA6
+Mcu.Pin4=PA7
+Mcu.Pin5=PA9
+Mcu.Pin6=PA10
+Mcu.Pin7=PA11
+Mcu.Pin8=PA12
+Mcu.Pin9=PA13
+Mcu.PinsNb=16
+Mcu.ThirdPartyNb=0
+Mcu.UserConstants=
+Mcu.UserName=STM32F072C8Tx
+MxCube.Version=4.27.0
+MxDb.Version=DB.4.0.270
+NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false
+NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:false
+NVIC.PendSV_IRQn=true\:0\:0\:false\:false\:true\:false
+NVIC.SVC_IRQn=true\:0\:0\:false\:false\:true\:false
+NVIC.SysTick_IRQn=true\:0\:0\:false\:false\:true\:false
+PA10.Mode=Asynchronous
+PA10.Signal=USART1_RX
+PA11.Mode=Device
+PA11.Signal=USB_DM
+PA12.Mode=Device
+PA12.Signal=USB_DP
+PA13.Mode=Serial_Wire
+PA13.Signal=SYS_SWDIO
+PA14.Mode=Serial_Wire
+PA14.Signal=SYS_SWCLK
+PA15.GPIOParameters=GPIO_Label
+PA15.GPIO_Label=ACT_LED
+PA15.Locked=true
+PA15.Signal=GPIO_Output
+PA4.Mode=NSS_Signal_Hard_Input
+PA4.Signal=SPI1_NSS
+PA5.Mode=Full_Duplex_Slave
+PA5.Signal=SPI1_SCK
+PA6.Locked=true
+PA6.Mode=Full_Duplex_Slave
+PA6.Signal=SPI1_MISO
+PA7.Mode=Full_Duplex_Slave
+PA7.Signal=SPI1_MOSI
+PA9.Mode=Asynchronous
+PA9.Signal=USART1_TX
+PB3.GPIOParameters=GPIO_Label
+PB3.GPIO_Label=ERR_LED
+PB3.Locked=true
+PB3.Signal=GPIO_Output
+PB6.Mode=I2C
+PB6.Signal=I2C1_SCL
+PB7.Mode=I2C
+PB7.Signal=I2C1_SDA
+PC13.GPIOParameters=GPIO_Label
+PC13.GPIO_Label=SLAVE_REQ
+PC13.Locked=true
+PC13.Signal=GPIO_Output
+PCC.Checker=false
+PCC.Line=STM32F0x2
+PCC.MCU=STM32F072C(8-B)Tx
+PCC.PartNumber=STM32F072C8Tx
+PCC.Seq0=0
+PCC.Series=STM32F0
+PCC.Temperature=25
+PCC.Vdd=3.6
+PinOutPanel.RotationAngle=0
+RCC.AHBFreq_Value=48000000
+RCC.APB1Freq_Value=48000000
+RCC.APB1TimFreq_Value=48000000
+RCC.CECFreq_Value=32786.88524590164
+RCC.FCLKCortexFreq_Value=48000000
+RCC.FamilyName=M
+RCC.HCLKFreq_Value=48000000
+RCC.HSICECFreq_Value=32786.88524590164
+RCC.I2C1Freq_Value=48000000
+RCC.I2SFreq_Value=48000000
+RCC.I2c1ClockSelection=RCC_I2C1CLKSOURCE_SYSCLK
+RCC.IPParameters=AHBFreq_Value,APB1Freq_Value,APB1TimFreq_Value,CECFreq_Value,FCLKCortexFreq_Value,FamilyName,HCLKFreq_Value,HSICECFreq_Value,I2C1Freq_Value,I2SFreq_Value,I2c1ClockSelection,MCOFreq_Value,PLLCLKFreq_Value,PLLMCOFreq_Value,SYSCLKFreq_VALUE,SYSCLKSource,TimSysFreq_Value,USART1Freq_Value,USART2Freq_Value,Usart1ClockSelection,VCOOutput2Freq_Value
+RCC.MCOFreq_Value=48000000
+RCC.PLLCLKFreq_Value=16000000
+RCC.PLLMCOFreq_Value=16000000
+RCC.SYSCLKFreq_VALUE=48000000
+RCC.SYSCLKSource=RCC_SYSCLKSOURCE_HSI48
+RCC.TimSysFreq_Value=48000000
+RCC.USART1Freq_Value=48000000
+RCC.USART2Freq_Value=48000000
+RCC.Usart1ClockSelection=RCC_USART1CLKSOURCE_SYSCLK
+RCC.VCOOutput2Freq_Value=8000000
+SPI1.DataSize=SPI_DATASIZE_8BIT
+SPI1.Direction=SPI_DIRECTION_2LINES
+SPI1.IPParameters=VirtualType,Mode,Direction,VirtualNSS,DataSize
+SPI1.Mode=SPI_MODE_SLAVE
+SPI1.VirtualNSS=VM_NSSHARD
+SPI1.VirtualType=VM_SLAVE
+USART1.IPParameters=VirtualMode-Asynchronous
+USART1.VirtualMode-Asynchronous=VM_ASYNC
+VP_SYS_VS_Systick.Mode=SysTick
+VP_SYS_VS_Systick.Signal=SYS_VS_Systick
+board=custom