StC 89c52单片机串口中断进不去

傲娇小斑鸠 2017-10-13 11:15:12

StC 89c52单片机串口中断进不去用的蓝牙发送串口下面是程序



#include<reg52.h>  

#include <intrins.h>

#include <stdio.h>            

#define uchar unsigned char        

#define uint unsigned int



/***左右轮的 PWM***/	

sbit  EN1=P0^6;		

sbit  EN2=P0^7; 

sbit  EN3=P1^6; 	

sbit  EN4=P1^7; 	

sbit  IN11=P0^0; 

sbit  IN12=P0^1;  

sbit  IN21=P0^2; 

sbit  IN22=P0^3;

sbit  IN41=P1^2; 

sbit  IN42=P1^3;

sbit  IN31=P1^0; 

sbit  IN32=P1^1; 



unsigned long int  counter;

uchar PWM_1,PWM_2;

#define High_Speed     19           

#define ML_Speed       5              

#define Middle_Speed   12         

#define Stop           0   

bit sgn1=0,sgn2=0;

uchar speed1=0;

uchar speed2=0;

uchar blue_receivestore=0; 

	

void initial()

{	

		ES=1;

		EA=1;

		EX0=1;	

		IT0=1;		

		ET0=1;

		TR0=1;

		TH0=0XF8;	

		TL0=0X10;

		TMOD=0x21;			

		TH1=0Xfd;

		TL1=0Xfd;

		TR1=1;

		SM0=0;		

		SM1=1;

		REN=1;

	//	ES=1;

	//	EA=1;

		EN1=0;

		EN2=0;

		EN3=0;

		EN4=0;	

		counter=0;

}



void motor(uchar index, bit sgn,uchar speed)

{

	if(speed>=0&&speed<=19)

		{

		if(index==1)	

			{

			if(sgn==1)	

				{

					IN11=0;

					IN12=1;	

					IN41=0;

					IN42=1;          

					PWM_1=speed;	

				}

			else

				{

					IN11=1;

					IN12=0;

					IN41=1;

					IN42=0;

					PWM_1=speed;

				}

			}

		if(index==2)	

			{

			if(sgn==1)	

				{

					IN21=0;

					IN22=1;

					IN31=0;

					IN32=1;

					PWM_2=speed;

				}

			else

				{

					IN21=1;

					IN22=0;

					IN31=1;

					IN32=0;

					PWM_2=speed;

				}

			}

	}

}



void number_analyse(uint tmp)

{	

uint operation;

//if(tmp==0xff){sgn1=0;sgn2=0;speed1=High_Speed;speed2=High_Speed;}

operation=tmp&0x30;	

if(operation==0x00){sgn1=0;sgn2=0;} //前行 

if(operation==0x20){sgn1=0;sgn2=0;} //左行

if(operation==0x10){sgn1=1;sgn2=1;} //右行

if(operation==0x30){sgn1=1;sgn2=1;} //后退

operation=tmp&0x0c;	

if(operation==0x0c){speed1=High_Speed;} //设定左轮为高速 

if(operation==0x08){speed1=Middle_Speed;} //设定左轮为中速 

if(operation==0x04){speed1=ML_Speed;}  //设定左轮为低速

if(operation==0x00){speed1=Stop;}		//设定左轮停下来 

operation=tmp&0x03;	

if(operation==0x03){speed2=High_Speed;} 

if(operation==0x02){speed2=Middle_Speed;} 

if(operation==0x01){speed2=ML_Speed;} 

if(operation==0x00){speed2=Stop;}

motor(1, sgn1,speed1);	

motor(2, sgn2,speed2);	

}

void main()

{		

	uint extern_accept_now=0;

	uint extern_accept=0;

	initial();

	while(1)

	{

		extern_accept_now=blue_receivestore;

		extern_accept=extern_accept_now;	

		number_analyse(extern_accept); 

	}

}



void timer1() interrupt 1	

{

counter++;	

TH0=(65536-1000)/256;

TL0=(65536-1000)%256;

//TH0=(65536-50000)/256;

//TL0=(65536-50000)%256;



if(counter%20<PWM_1){EN1=1;EN4=1;}	

if(counter%20>PWM_1){EN1=0;EN4=0;}

if(counter%20<PWM_2){EN2=1;EN3=1;}

if(counter%20>PWM_2){EN2=0;EN3=0;}

if(counter==60000)  counter=0;		

}



void blue_receive() interrupt 4	

{	 

	if(RI==1)  

	{	   		

		blue_receivestore=SBUF;		

		RI=0;

	}

}

这是我用kiel仿真往串口发送0x4A数据的截图，串口中断的断点进不去

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dannes_li 2017-10-14

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void blue_receive() interrupt 4 { if(RI==1) { blue_receivestore=SBUF; RI=0; ｝｝改成 void blue_receive() interrupt 4 { if(RI==1) { RI=0; blue_receivestore=SBUF; ｝｝试试