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PIC PC Keyboard Interfacing

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cyberstudent99

cyberstudent99

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Hi,
i am searching for a "C" code for pic, i have searched here, but all the information available is about this interfacing.

keyboardsch.GIF

From:
**broken link removed**

(Data is sent to Microcontroller which is then processed to PC Via RS 232 Connector)

But i need information in opposite case, in which data is sent from pc and is sent to microcontroller via rs232 and then processed to one of PICs Ports.

Any help is much appreciated, thanks
 

If I understood well, it is a simple TX-RX. Pins 10 and 11 (suppose TX and RX) of the ucontroller would be used.
You can use Windows Hyperterminal or any other serial communication software to do it.
You just have to set the serial interrupt, or poll the ucontroller RX buffer. Then, you check what was the ASCII code received and perform the desired operation.
Don't forget to clear the serial interrupt flag after reading the serial buffer.
 

"But i need information in opposite case, in which data is sent from pc and is sent to microcontroller via rs232 and then processed to one of PICs Ports."

Is this circuit purpose linked with some LCD scroll text display?
 

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