Redarding serial receiver and transmitter

Code:

#include<reg51.h>
#include<stdio.h>

Rx();
Tx();

void main (void)
{
SCON = 0x42;
TMOD |= 0x20;
TH1 = 0xfa;
TR1 = 1;
TI = 1;
Rx();
}

Rx(){
while (1)
{ (RI=1);
ACC = 0000;
ACC = SBUF;
P1 = ACC;
Tx();
RI = 0;
Rx();
}
}

Tx()
{
ACC = (ACC + 4Cool;
SBUF = ACC;
while(TI){}
TI = 0;

Click to expand...

Rx(){
while (1)
{ (RI=1);
ACC = 0000;
ACC = SBUF;
P1 = ACC;
Tx();---------------------------------error remove it
RI = 0;
Rx();---------------------------------error remove it
}
}

Click to expand...

manish12 said:

you should ,first return from isr otherwise how you can re-enter in it on event ?

Rx(){
while (1)
{ (RI=1);
ACC = 0000;
ACC = SBUF;
P1 = ACC;
Tx();---------------------------------error remove it
RI = 0;
Rx();---------------------------------error remove it
}
}

Click to expand...

Click to expand...