51定时器初始化.doc

#include #include sbit R0=P10;sbit R1=P17;unsigned int t0=0,t1=0,m0=0,m1=0;/工作方式0:最大定时计数=213=8192/工作方式1:最大定时计数=216=65536/机周时间=12/fosc 12MHz:1us; 6MHz:2us;/TH&TL:T初值=(工作方式最大计值)-定时时间/机周时间;void Time0_init() /计时 TMOD|=0x01;/T0方式1 TH0=(65536-0)/256;/ TL0=(65536-0)%256; EA=1; ET0=1; TR0=1;void Time1_init() /计时 TMOD|=0x10;/T1方式1 TH1=(65536-0)/256;/ TL1=(65536-0)%256; EA=1; ET1=1; TR1=1; main() Time0_init(); Time1_init(); P1=0XFF; while(1) /P1=t0; void Time0() interrupt 1 TH0=(65536-50000)/256; TL0=(65536-50000)%256; t0+; if(t0=10) t0=0;m0+; /if(t0%5=0) R0=R0; void Time1() interrupt 3 TH1=(65536-10)/256; TL1=(65536-10)%256; t1+; if(t1=10) t1=0;m1+; /if(t1%5=0) R1=R1; /*#include #include /#define ln2 0.693147#define uchar unsigned char#define uint unsigned intsbit R0=P10;uint t=0,m=0;void begint0();void begint1();xianshi(uint);delay(uint);uchar table=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90;main() begint0(); while(1);void begint0() /计时 TMOD=0x01; TH0=0x00; TL0=0x00; EA=1; ET0=1; TR0=1;time0() interrupt 1 uint i; TH0=0x00; TL0=0x00; t+; if(t%3=0) m+;R0=R0; for(i=0;i100;i+) P0=tablem%10;P2=0xfe;delay(10);/个位 P0=tablem/10%10;P2=0xfd;delay(10);/十位 P0=tablem/100%10;P2=0xfb;delay(10);/百位 P0=tablem/1000%10;P2=0xf7;delay(10);/千位 P0=tablem/10000%10;P2=0xef;delay(10);/万位 P0=tablem/100000%10;P2=0xdf;delay(10);/十万 P0=tablem/1000000%10;P2=0xbf;delay(10);/百万/M delay(uint z) uint i,j; for(i=0;iz;i+) for(j=0;jz;j+) ; void Time_init() TMOD=0x11;