added firmware upload instruction, moved making some into its own md file

README.md

@@ -20,6 +20,8 @@ Here's a short video of exixe14 modules in action on the [high precision clock](
 
 https://www.youtube.com/watch?v=r3d2alzgjKc
 
+Questions, inquires, or want to buy some? Feel free to email me at `dekunukem gmail com`.
+
 ## Features
 
 Compared to the traditional approach, exixe modules offers significant advantages:
@@ -67,7 +69,7 @@ Please see [getting_started.md](/getting_started.md)
 
 I can custom make some exixe modules for you in small quantities. However, soldering them together and testing them takes a long time, so it's going to be more expensive than just the cost of materials.
 
-As for a larger scale, I am considering a small run in China, however it is going to take a while, so don't count on it for now.
+I am also doing a small run in China for a few hundred boards, they should be ready by early 2018. I will update the repo with the purchase link once I receive them.
 
 Also, I do have some extra empty PCBs in panels of 8, so if you want I can sell one to you. You still need to source the rest of the components and solder it together though.
 
@@ -75,13 +77,6 @@ Also, I do have some extra empty PCBs in panels of 8, so if you want I can sell
 
 Email me at `dekunukem gmail com` for inquires.
 
-## Making Some
+## Making Some yourself
 
-Full BOM here: [exixe12](resources/exixe12_bom.xlsx), [exixe14](resources/exixe14_bom.xlsx)
-
-* The NPN transistor used on every cathode is [BF820](https://www.mouser.co.uk/Search/ProductDetail.aspx?R=BF820W%2c135virtualkey66800000virtualkey771-BF820W135)
-* The single PNP transistor used in overdrive circuit is [MSB92](https://www.mouser.co.uk/Search/ProductDetail.aspx?R=MSB92ASWT1Gvirtualkey58410000virtualkey863-MSB92ASWT1G)
-* Microcontroller is [STM32F042K6T6](https://www.mouser.co.uk/Search/ProductDetail.aspx?R=STM32F042K6T6virtualkey51120000virtualkey511-STM32F042K6T6)
-* LED is [Wurth Electronics 150141M173100](https://www.mouser.co.uk/Search/ProductDetail.aspx?R=150141M173100virtualkey51100000virtualkey710-150141M173100)
-
-Making some exixe modules yourself is fairly straightforward, just order the PCBs and parts and solder them together. Since the component count is not small and they are densely populated, I suggest order the PCB in panels of 6 or 8 and get a matching stencil to apply the paste. Use of reflow oven or skillet reflow is also recommended, since soldering each and every component by hand is basically torture.
+Please see [making_some.md](/making_some.md)

making_some.md

@@ -0,0 +1,53 @@
+# Making some yourself
+
+Making some exixe modules yourself is fairly straightforward, just order the PCBs and parts and solder them together. Since the component count is not small and they are densely populated, I suggest order the PCB in panels of 6 or 8 and get a matching stencil to apply the paste. Use of reflow oven or skillet reflow is also recommended, since soldering each and every component by hand is basically torture.
+
+Full BOM here: [exixe12](resources/exixe12_bom.xlsx), [exixe14](resources/exixe14_bom.xlsx)
+
+* The NPN transistor used on every cathode is [BF820](https://www.mouser.co.uk/Search/ProductDetail.aspx?R=BF820W%2c135virtualkey66800000virtualkey771-BF820W135)
+* The single PNP transistor used in overdrive circuit is [MSB92](https://www.mouser.co.uk/Search/ProductDetail.aspx?R=MSB92ASWT1Gvirtualkey58410000virtualkey863-MSB92ASWT1G)
+* Microcontroller is [STM32F042K6T6](https://www.mouser.co.uk/Search/ProductDetail.aspx?R=STM32F042K6T6virtualkey51120000virtualkey511-STM32F042K6T6)
+* LED is [Wurth Electronics 150141M173100](https://www.mouser.co.uk/Search/ProductDetail.aspx?R=150141M173100virtualkey51100000virtualkey710-150141M173100)
+
+# Upload Firmware
+
+Once you have soldered the board together, you will need to uplaod the firmware to the STM32 microcontroller in order for the boards to function.
+
+To do that you need a ST-Link V2 programmer, they are dirt cheap on ebay (around $4), just search "ST-Link V2". It should look like this:
+
+![Alt text](resources/st-link-dongle.jpg)
+
+Then go and download the free STM32 ST-LINK Utility from the official ST website:
+
+http://www.st.com/en/development-tools/stsw-link004.html
+
+Click "get software" at the bottom of the page, then provide a name and email to get the download link. Use a fake name and a burner email like [this one](https://slippery.email/) to avoid spams.
+
+The ST-LINK Utility will install the driver for the programmer automatically. After which you can connect the programmer to the exixe board:
+
+* `GND` to `GND`
+* `3.3V` to `3V`
+* `SWDIO` to `DIO`
+* `SWCLK` to `CLK`
+
+After the board is connected to the programmer, plug the programmer into the USB port, then open the ST-LINK Utility. Click the button indicated below to connect to the microcontroller:
+
+![Alt text](resources/stlink_0.png)
+
+If your solder job is good, the ST-LINK Utility should be able to connect to the STM32 and show the content of its internal memory:
+
+![Alt text](resources/stlink_1.png)
+
+If the chip is brand new, everything shoud be 0xff. Anyway, click Target -> Program:
+
+![Alt text](resources/stlink_2.png)
+
+Then select the HEX file that you want to use, [exixe12](/firmware/exixe12/exixe12.hex) [exixe14](/firmware/exixe12/exixe14.hex):
+
+![Alt text](resources/stlink_3.png)
+
+Then click start to upload the firmware:
+
+![Alt text](resources/stlink_4.png)
+
+That's pretty much it if you don't want to recompile the firmware. If you do however you'll need to download the [Keil MDK](https://www.keil.com/demo/eval/arm.htm), it's slightly more involved, and I'll write a tutorial if interest arises.