32 lines
1002 B
Markdown
32 lines
1002 B
Markdown
### STM32 via ST-Link
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Nucleo and Discovery boards typically include a built-in ST-Link programmer.
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A `.bin` or `.hex` file can be flashed using [st-flash](https://github.com/stlink-org/stlink).
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```bash
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# Optional erase to clear existing filesystem.
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st-flash erase
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# Flash .bin
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st-flash write firmware.bin 0x08000000
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# or, flash .hex
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st-flash --format ihex write firmware.hex
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```
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A `.hex` file can be flashed using [STM32 Cube Programmer](https://www.st.com/en/development-tools/stm32cubeprog.html).
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```bash
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STM32_Programmer.sh -c port=SWD -d firmware.hex -hardRst
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```
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### STM32 via DFU
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Boards with USB support can also be programmed via the ST DFU bootloader, using e.g. [dfu-util](http://dfu-util.sourceforge.net/) or [pydfu.py](https://github.com/micropython/micropython/blob/master/tools/pydfu.py).
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To enter the bootloader the `BOOT0` pin can be connected to `VCC` during reset, or you can use `machine.bootloader()` from the MicroPython REPL.
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```bash
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dfu-util --alt 0 -D firmware.dfu
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```
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