参考资料:“E:\普中-2&普中-3&普中-4开发板资料”
我买的单片机就是有“-RC”系列的,但我没有选rc,就一直下载不进去!
#include <reg52.h>
#include "delay.h"
#include <intrins.h>
//sbit FLED = P2; //LED不亮,但代码能烧入
#define FLED P2
//sbit LED = P2^6;
//sbit KEY = P1^2;
//sbit BEEP = P2^7;
typedef unsigned int u16;
typedef unsigned char u8;
void main(void)
{
u8 i;
FLED = ~0x01;
while(1)
{
for(i=0;i<7;i++) //左移
{
FLED = _crol_(FLED,1);
delayms(500);
}
for(i=0;i<7;i++) //右移
{
FLED = _cror_(FLED,1);
delayms(500);
}
}
}
当D5、D6亮的时候,蜂鸣器会分别响一下,原因:P25和D6、BEEP相连