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serial communication assembly program

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haens7

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hi all i'm under-graduation student, and i have a problem with the graduation project, I'm using ATMEL 89C51 and all circuitry is just perfect the signal passes thru the serial port to the MAX232 but there is a problem with the assembly code i want an ASSEMBLY code just transfer the character i send to the micro-controller any character to P1 port 1 - i want it so simple nothing else.
thank you
 

Wond3rboy

Member
The least you can do is post the code and not demand it!. Is your system interrupt driven? Even if not, just copy the recieved data from SBUF in to the ACCUMULATOR and then o/p to PORT 1. Remember you will have to first configure PORT1 as an o/p by clearing it at the start of the program.
 
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