Resolved! GPIO strange issue
I have this code that works and i can turn an LED on:#include "stm32f10x.h" void RCC_Init(void){ RCC->APB2ENR |= RCC_APB2ENR_IOPCEN; } void GPIO_Init(void){ GPIOC->CRH |= GPIO_CRH_CNF13_0 | GPIO_CRH_MODE13_0 | GPIO_CRH_MODE13_1; } int main(vo...