how to interface 2 89s52 microcontrollers serially?

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arun434

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i connected TxD pin of one microcontroller to RxD pin of another microcontroller and RxD to TxD.
and i connected a common ground.but it is not working.
help me plsss...
 
89s52

arun434 said:
i connected TxD pin of one microcontroller to RxD pin of another microcontroller and RxD to TxD.
and i connected a common ground.but it is not working.
help me plsss...
Click to expand...

visit my site you will find important there
 
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