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551 B
551 B
Bluepill USB-I2C gateway
Hardware
This is a firmware for STM32F103R8T6 Bluepill.
Customization
The project can be customized using STM32CubeMX.
there's some changes in the i2c HAL driver, careful!
line 6364
// HACK - ignore HAL_I2C_ERROR_AF
if (hi2c->ErrorCode != HAL_I2C_ERROR_NONE && hi2c->ErrorCode != HAL_I2C_ERROR_AF)
this allows receiving frames of unknown length
Building & programming
use the makefile and flash using a st-link dongle.
Requires: Make, arm-none-eabi-gcc, st-flash
make -j
make flash