luobo2305的博客

led.S#define GPIO_BASE 0x01C20800#define GPIO_PH_CFG2_BASE (GPIO_BASE + 0x104)#define GPIO_PH_DAT_BASE (GPIO_BASE + 0x10C).global _start_start: b resetreset: ldr r0, =GP

main.c#include "led.h"static void delay(){ unsigned int i = 0; for(i = 0; i 50000; i++);}int main(){ led_init(); while(1) { led1_on(); delay();

main.c#include "led.h"static void delay(){ unsigned int i = 0; for(i = 0; i < 0xffffff; i++);}int main(){ led_init(); while(1) { led1_on(); delay(); led1_of