串口發(fā)送接收程序

ID:707653 · 發(fā)表于 2020-3-13 14:18

#include "reg52.h"

unsigned char DATA[]={0x49,0x20,0x61,0x6d,0x20,0x57,0x5a,0x48};
unsigned char g_uData_1[];
unsigned char g_uData;
sbit led_0=P1^0;
sbit led_1=P1^1;
sbit led_2=P1^2;
sbit led_3=P1^3;
sbit led_4=P1^4;
sbit led_5=P1^5;
sbit led_6=P1^6;
sbit led_7=P1^7;
sbit key_0=P3^4;
sbit key_1=P3^5;
sbit key_2=P3^6;
sbit key_3=P3^7;
void Delay(unsigned int n)
{
while(n--);
}

void main(void)
{
SCON=0x50;

EA=1;
ES=1;

TMOD=0X20; //設置計數(shù)器工作方式2
TH1=0XFd; //計數(shù)器初始值設置，注意波特率是4800的
TL1=0XFd;
TR1=1;

while(1)
{
Delay(100);
}
}

void Rec_Data(void) interrupt 4
{ if( SBUF==0x31)
{
unsigned int i;
g_uData = SBUF;
for(i=0;i<8;i++)
{
SBUF=DATA[i];
while(!TI);
TI=0;
}
}
RI=0;
// SBUF=g_uData;
// while(!TI);
// TI=0;
// SBUF=0xa;
// while(!TI);
// TI=0;
}

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