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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/Bootloaders.md | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/docs/Bootloaders.md b/docs/Bootloaders.md index 884cfbfd..6933c47b 100644 --- a/docs/Bootloaders.md +++ b/docs/Bootloaders.md @@ -254,10 +254,11 @@ bossac -U -p /dev/ttyACM0 --offset=0x4000 -w out/klipper.bin -v -b -R ## STM32F103 micro-controllers (Blue Pill devices) The STM32F103 devices have a ROM that can flash a bootloader or -application via 3.3V serial. To access this ROM, one should connect -the "boot 0" pin to high and "boot 1" pin to low, and then reset the -device. The "stm32flash" package can then be used to flash the device -using something like: +application via 3.3V serial. Typically one would wire the PA10 (MCU +Rx) and PA9 (MCU Tx) pins to a 3.3V UART adapter. To access the ROM, +one should connect the "boot 0" pin to high and "boot 1" pin to low, +and then reset the device. The "stm32flash" package can then be used +to flash the device using something like: ``` stm32flash -w out/klipper.bin -v -g 0 /dev/ttyAMA0 ``` |