pio_cubemx_stm32f4

CubeMX project integration in platformio as a library for the Black pill board with STM32F4 The goal is to habe a .ioc project that can regenerate the library and easily keep using it from a pio project

steps required after regeneration

although the goal would be to have no manual steps, currently still some actions are required

• delete Drivers folder
• merge main.c
• revert main.h

TODO take the main outside and generate without main TODO check generation with Makefile project

generated HAL vs pio HAL

• stm32f4xx_hal_conf.h in .platformio\packages\framework-stm32cube\f4\Drivers\STM32F4xx_HAL_Driver\Inc\
• pio HAL has everything enabled
• main() -> HAL_Init() -> __weak callback HAL_MspInit()
• required generated files :
  • main.c
  • stm32f4xx_hal_msp.c
  • stm32f4xx_it.c

SysTick_Handler issue

issue

• did not manage to get SysTick_Handler to get called

solution

• despite the file stm32f4xx_it.c getting compiled and the source containing SysTick_Handler() function, the function was beaving like non existing without any complaints
• placing a duplicate SysTick_Handler() in main.c resolves the problem

problem

• unsolved mysteries
  • why does the linker not complains about multiple instances ?
  • why is the instance of stm32f4xx_it.c not considered ?