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Computer COM port & microcontroller COM port ??

Rutu Patil

Hi all,

I have written a program in VC++ to write a char array of 13 bytes on COM port using 9600-N-8-1 parameters.

when i send this to my target device it responds, but same program when i send through 89S51 my device does not respond.To set 9600-N-8-1 i have written 0xFD value.

Can anyone no the reason for such strange behaviour.

Please let me know....

rutu.

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