#include
#include
void delayms(unsigned char ms)
// 延时子程序
{
unsigned char i;
while(ms--)
{
for(i = 0; i < 120; i++);
}
}
main()
{
unsigned char led;
led = 0xfe;
p0 = led;
while(1)
{
delayms(250);
led = _crol_(led,1); //循环右移1位,点亮下一个led
p0 = led;
}
}
reg51.h中定义的sfr:
/* byte register */
sfr p0 = 0x80;
sfr p1 = 0x90;
sfr p2 = 0xa0;
sfr p3 = 0xb0;
sfr psw = 0xd0;
sfr acc = 0xe0;
sfr b = 0xf0;
sfr sp = 0x81;
sfr dpl = 0x82;
sfr dph = 0x83;
sfr pcon = 0x87;
sfr tcon = 0x88;
sfr tmod = 0x89;
sfr
单片机c语言 流水灯 数组 延时 单片机流水灯C语言程序(8个灯 依次点亮每个灯 延时500MS)...