Blue Pill to Black Magic Probe

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Turning the Blue Pill development board into a Black Magic Probe

marble

1
Install the Toolchain
Install gcc-arm-embedded, stm32flash and dfu-util.

Most GNU/Linux distributions provide this as a package. E.g. on distributions with APT like Debian you can run
```
sudo apt install gcc-arm-none-eabi stm32flash dfu-util
```

2

Download the blackmagic Firmware Repository

git clone --recursive https://github.com/blackmagic-debug/blackmagic.git
cd blackmagic

3
Build the Firmware
```
make PROBE_HOST=swlink
```
4
Flash the Bootloader
Hook up the Blue Pill to the USB-UART adapter and set to bootstrap pins as shown and then connect the UART adapter to your computer via USB.

UART Adapter Blue Pill
RX A9
TX
A10

BOOT0 BOOT1
1 0

This causes the STM32 to run its system memory bootloader from ROM, which enables us to flash the firmware via UART. To do that, use stm32flash as shown. Replace /dev/ttyUSB0 with the correct device path of your UART adapter.
```
stm32flash -S 0x8000000 -v -w src/blackmagic_dfu.bin /dev/ttyUSB0
```
5
Upload the Firmware
Set both bootstrap pins of the Blue Pill to 0 again and connect it to your computer via USB.

Upload the firmware binary using the dfu utility.
```
dfu-util -d 1d50:6018,:6017 -s 0x08002000:leave -D src/blackmagic.bin
```

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