Hi all,
I have a problem. I needed two UARTs in one controller. So I wrote a little code for it. The part that transmits the data works fine. The part that recieves the data works like this:
An interrupt is generated whenever the line goes low(i.e at the start bit). The external interrupt is then disabled and a timer is started from the ISR to generate timing. When 10 bits have been successfully recieved, the timer is shut down.
PROBLEM:
I simulated this on three different compilers. They all worked fine. But when I burn it in an 89C51 and check hardware I always get the correct character appended with a space.

IF 'a' is to be recieved on the line, the code recieves 'a '.Note the space. EVERYTIME. Any help will be most appreciated.