51单片机和hc_05蓝牙连接
糖醋咸鱼 2017-10-11 08:15:27 #include <reg51.h>
sbit led=P1^0;
unsigned char rx;
void InitUART(void)
{
TMOD = 0x20;
SCON = 0x50;
TH1 = 0xFD;
TL1 = TH1;
PCON = 0x00;
EA = 1;
ES = 1;
TR1 = 1;
}
void main(void)
{
InitUART();
while(1);
}
void UARTInterrupt(void) interrupt 4
{
if(RI)
{
RI = 0;
rx=SBUF;
if(rx=='1'){led=0;}
if(rx==1){led=0;}
}
else
TI = 0;
}
void SendOneByte(unsigned char c)
{
SBUF = c;
while(!TI);
TI = 0;
}
我把这程序烧录进单片机中,用电脑串口助手发送1,led亮了
用手机连接蓝牙,用蓝牙串口调试助手发送1,没反应,请问哪里出现了问题?