#include "led.h" void system_init(void) { led_init(LED_PIN); } void led_blink(void) { while (1) { led_on(LED_PIN); led_off(LED_PIN); } } int main(void) { system_init(); // NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); // __enable_irq(); led_blink(); return 0; }