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较为准确的延迟函数

2019-11-08 02:00:10
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#include <reg52.h>void timer0_init(){ EA = 1; TMOD |= 0x01; TH0 = (65536 - 50000)/256; TL0 = (65536 - 50000)%256; ET0 = 1; TR0 = 1;}void timer0_init(){ static unsigned char i = 0; //只执行一遍 TH0 = (65536 - 50000) /256; TL0 = (65536 - 50000) %256; i++; if(i == 20) { i = 0; LED = 0; }}void mian(){ while(1) { }}
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