STC89C52秒表精确10ms同时LED二进制计数

1、STC89C52秒表（精确10ms）同时LED进制计数#include ; typedef unsigned charuint8; typedef unsigned intuint16;typedef unsigned longuint32;/* 数码管 0 到 F 定义 */code uint8 number = 0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xa7,0xa1,0x86,0x8e;uint8 a6;uint16 counter1 = 0;uint8 counter = 0;sbit ENLED = P

2、1A4;sbit ADDRO = P1A0;sbit ADDR1 = PM1；sbit ADDR2 = P1A2;sbit ADDR3 = P1A3；1ms*/* 定时器 1 初始化，并定时 void timer1_init()TMOD |= Ox1O；TMOD &= Oxdf；TH1= OxFC；TL1= Ox67；TR1= 1；/* 中断初始化 */void int_init()ET1 = 1；EA = 1；/* 刷新数码管 */void refresh_led()static uint8 j = 0;uint8 b = numbera2 - 0x80 ;switch(j)case

3、 0: ADDR0 = 0;ADDR1 = 0;ADDR2 = 0;P0 = numbera0;break;b;break;case 1: ADDR0 = 1;ADDR1 = 0;ADDR2 = 0;P0 = numbera1;break;case 2: ADDR0= 0;ADDR1= 1;ADDR2= 0;P0 case 3: ADDR0 = 1;ADDR1 = 1;ADDR2 = 0;P0 = numbera3;break;case 4: ADDR0 = 0;ADDR1 = 0;ADDR2 = 1;P0 = numbera4;break;case 5: ADDR0 = 1;ADDR1 =

4、0;ADDR2 = 1;P0 = numbera5;break;default: break;if(7 = j+) j = 0;main()ENLED = 0; ADDR3 = 1; timer1_init();int_init();while(1);/* 中断函数 */void interrupt_timer1() interrupt 3static uint32 sec = 0;TH1 = 0xFC;TL1 = 0x66; counter+;if(counter = 10)sec+; counter = 0;a0 = sec%10;a1 = sec/10%10;a2 = sec/100%10;a3 = sec/1000%10;a4 = sec/10000%10;a5 = sec/100000%10; if(sec%100 = 0) counter1+;/LED 时间 1sif(counter1 = 256) counter1 = 0;if(co