Instructions

Generate the project using STM32CubeMX

• Select STM32F411CEU6 MCU
• Set pin PC13 to GPIO_Output
• Enable USART1_RX (PA10) and USART1_TX (PA9)
• Enable the RCC HSE and LSE crystal clocks
• Enable I2C1 (SDA on PB7, SCL on PB6)
• Set toolchain to Makefile

Install the following archlinux packages...

• arm-none-eabi-gcc
• arm-none-eabi-newlib
• arm-none-eabi-gdb
• openocd
• stlink

Flash board:

sudo st-flash write blackpill_imu.bin 0x08000000

Reset board

sudo st-flash reset

Start OpenOCD:

openocd -f interface/stlink-v2.cfg -f target/stm32f4x.cfg

Connect to serial device:

sudo screen /dev/ttyACM0 115200
sudo picocom -b 115200 /dev/ttyACM0 

Reset STM32

openocd -f interface/stlink-v2.cfg -f target/stm32f4x.cfg -c "init" -c "halt" -c "stm32f4x unlock 0" -c "reset halt" -c "exit"