led.c

本代码是基于三星2410的嵌入式开发实验程序代码,包括:ADC,CS8900A,KEY_GPIO,KEY_INT,LED,PWMDAC,UART

#include "2410addr.h"

void Main(void){
    unsigned int i, nLED;
    rGPFCON = (rGPFCON & 0x00ff) | 0x5500;//设置GPF[7:4](LED[4:1])为输出功能
    while (1){  
        for (nLED = 1; nLED < 16; nLED <<= 1){
            rGPFDAT = (rGPFDAT & 0x0f) | ((~nLED & 0xf)<<4);
            for (i = 0; i < 200000; i++);//延时
        }
    }
}