多种流水灯C语言程序设计.doc

/*以下程序均采用12M晶振*/#include#define uint unsigned int#define uchar unsigned char#define ulong unsigned longsbit p2=P20;void main() TMOD=0x01; TR0=1; ET0=1; EA=1; while(1) ; timer0() interrupt 1 TH0=0x00; TL0=0x06; p2=!p2;定时流水灯/#include#define uint unsigned int#define uchar unsigned char#define ulong unsigned longbit ldelay=0;void main() uchar led9=0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,0xff; uchar leda; TMOD=0x00; TR0=1; ET0=1; EA=1; while(1) if(ldelay) ldelay=0; P2=ledleda; leda+; if(leda=9)leda=0; timer2() interrupt 1 static uchar t; TF0=0; t+; if(t=10) t=0; ldelay=1; 变速流水灯/#include#define uint unsigned int#define uchar unsigned char#define ulong unsigned longbit ldelay=0;uchar speed=100;void main() uchar led9=0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,0xff; uchar leda; TMOD=0x00; TR0=1; ET0=1; EA=1; while(1) if(ldelay) ldelay=0; P2=ledleda; leda+; if(leda=9) leda=0; speed-=10; if(speed=0)speed=100; timer2() interrupt 1 static uchar t; TF0=0; t+; if(t=speed) t=0; ldelay=1; /每2两圈改变一次亮度#include#define uint unsigned int#define uchar unsigned char#define ulong unsigned longbit ldelay=0;uchar speeda=30;uint k=0;void main() uchar led9=0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,0xff; uchar leda; uchar speed10=5,80,70,60,50,40,30,20,10,5; uint i; uint k; TMOD=0x00; TR0=1; ET0=1; EA=1; while(1) if(ldelay) ldelay=0; P2=ledleda; leda+; if(leda=9) leda=0; k+; if(k=2) k=0; speeda=speedi; i+; if(i=9)i=0; timer2() interrupt 1 static uchar t; TF0=0; t+; if(t=speeda) t=0; ldelay=1; /在上面基础上调灯的亮度（调占空比）#include#define uint unsigned int#define uchar unsigned char#define ulong unsigned longbit ldelay=0;uchar speeda=30;uint k=0;uchar scale; void main() uchar led9=0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,0xff; uchar leda; uchar speed10=5,80,70,60,50,40,30,20,10,5; uint i; uint k; TMOD=0x00; TR0=1; ET0=1; EA=1; while(1) if(ldelay=1) ldelay=0; P2=ledleda; leda+; scale+; if(scale=10)scale=0; if(leda=9) leda=0; k+; if(k=2) k=0; speeda=speedi; i+; if(i=9)i=0; timer2() interrupt 1 stati