I am using stm32mp157f-dk2 and followed https://wiki.st.com/stm32mpu/wiki/Getting_started with help of stmcubeIDE. I am able to debug M4 core and also see SWV prints with ST A7 image and M4 image. Both images are available through above ST web site. ...

void Set_Option_Byte( void ){ FLASH_OBProgramInitTypeDef OBInit; /* Unlock the Flash to enable the flash control register access *************/ HAL_FLASH_Unlock(); /* Clear OPTVERR bit set on virgin samples */ __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_OPTVER...