2021-03-11 51蛋骗鸡串口中断流水灯回复

缘由51单片机求大佬救救为什么即使返回了sml流水灯速度也没有改变就是v没有变化？-吐槽问答-CSDN问答

#include
#include
typedef unsigned char u8;
typedef unsigned int u16;
#define led P2
u16 v=11200;
u16 i=0;
u8 receive='b';
 
void UsartInit()
{
	SCON=0X50;
	TMOD=0X21;
	PCON=0X80;
	TH1=0XF3;
	TL1=0XF3;
	ES=1;
	EA=1;
	TR1=1;
	TH0=0XFC;
	TL0=0X18;
	ET0=1;
	TR0=1;
}
void LED()
{
	static u8 j=0;
//	static u8 ys=0;//模拟延时
	if(i==v)
	{
		led=~(0x01<
		j++;
		if(j==7)
		j=0;
		i=0;
		RI=1;//模拟
	}
}
void main()
{
	UsartInit();
	while(1)LED();	
}
void Timer0() interrupt 1
{
	TH0=0XFC;
	TL0=0X18;
	i++;
}
void Usart() interrupt 4
{
//	receive=SBUF;
	RI=0;
//	SBUF=receive;
	if(receive=='b')receive='s';//模拟接收到信息
	else if(receive=='s')receive='c';
	else if(receive=='c')receive='m';
	else if(receive=='m')receive='d';
	else if(receive=='d')receive='l';
	else if(receive=='l')receive='b';
	if(receive=='s')
	v=11200;
	else if(receive=='m')
	v=31000;
	else if(receive=="l")
	v=53000;	
	else  v=474;	
//	while(!TI);
//	TI=0; 
}

 通过观测波形可见变化