成成的笔记
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单片机定时器

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定时器方式2

手动重装初值

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#include <atmel/REGX52.H>

void main(void)
{
	// GATE C/T M1 M0 GATE C/T M1 M0
	TMOD = 0X01;
	TH0 = (65536 - 50000) / 256;
	TL0 = (65536 - 50000) % 256;
	EA = 1;
	ET0 = 1;
	TR0 = 1;
	P0_0 = 1;
	while(1);
}

void timer0() interrupt 1
{
	TH0 = (65536 - 50000) / 256;
	TL0 = (65536 - 50000) % 256;
	P0_0 = ~P0_0;
}