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想實(shí)現(xiàn)Arduino發(fā)送信息，c51接收信息，比如當(dāng)c51收到A后LED1一直亮，當(dāng)收到B后LED1滅LED2一直亮
自己寫的程序不對(duì)，實(shí)現(xiàn)不了 求助大神
arduino程序
void setup()
{
Serial.begin(9600);
}
void loop()
{
Serial.write('A');
delay(5000);
Serial.write('B');
delay(5000);
}
C51程序
#include <reg52.h>
sbit LED1 = P1^0;
sbit LED2 = P1^1;
unsigned char UART_buff;
bit New_rec = 0;
bit Send_ed = 1;
void delay(int x)
{
int i,j;
for(i=0;i<x;i++)
for(j=0;j<110;j++);
}
void main (void)
{
SCON = 0x50;//串口方式1, 8-n-1, 允許接收.
TMOD = 0x20;//T1方式2
TH1 = 0xFD; //9600bps@11.0592MHz
TL1 = 0xFD;
TR1 = 1;
ES= 1; //開中斷.
EA= 1;
while(1)
{
if ((New_rec == 1) && (Send_ed == 1))//如果收到新數(shù)據(jù)及發(fā)送完畢
{
SBUF = UART_buff; //那就發(fā)送.
New_rec = 0;
Send_ed = 0;
}
}
}
/***************中斷服務(wù)函數(shù)*********************/
void ser_int (void) interrupt 4
{
if(RI == 1) //如果收到.
{
RI = 0; //清除標(biāo)志.
New_rec = 1;
UART_buff = SBUF; //接收.
if(UART_buff == '0')
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