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Created Compile keyboard bootloader (markdown)

GNU 2022-09-26 13:00:55 +08:00
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# Build bin
```
git clone https://github.com/rogerclarkmelbourne/STM32duino-bootloader
cd STM32duino-bootloader
make generic-pc13
```
this will produce `bootloader_only_binaries/generic_boot20_pc13.bin`
## Next is to use stm32Cube to flash the bootloader
* Download the stm32cube programmer
[stm32cube programmer](https://www.st.com/en/development-tools/stm32cubeprog.html)
* Put 1 ON in the back of keyboard
* Connect keyboard with a usb-serial convert, in order of [IO MAP](https://github.com/clockworkpi/DevTerm/wiki/Keyboard-with-FPC-60pin-0.5mm)
* Click connect on STM32cube programmer
* flash it
# Flash Arudino
## Arduino IDE
* add stm32duino pacakage index: http://dan.drown.org/stm32duino/package_STM32duino_index.json
![image](https://user-images.githubusercontent.com/523580/192196432-7afdbda3-3de6-4ca1-bd18-dbcc6b38b295.png)
* verbose all outputs:
![image](https://user-images.githubusercontent.com/523580/192197062-60f13b8f-e537-4086-ae52-eaf8878b26f4.png)
* Select upload method
![image](https://user-images.githubusercontent.com/523580/192197084-db4b3178-ec18-40a1-8680-b0890e39e662.png)
* Set cpu mhz to 48Mhz
![image](https://user-images.githubusercontent.com/523580/192197126-62f41bad-a9b2-42a7-9622-2e07c1a08d3b.png)
* Put 1 OFF in the back of keyboard
* User arduino IDE to open [devterm_keyboard.ino](https://github.com/clockworkpi/DevTerm/blob/main/Code/devterm_keyboard/devterm_keyboard.ino)
* flash it
![image](https://user-images.githubusercontent.com/523580/192197177-e069fb08-6f40-40cc-9d9e-129bf0a546a6.png)