PIC 16F877A and GSM modem Interface

[ratheeshbr]

I am trying to read SMS using serial communication. But my serial communication shows an error. If I send three, or more than three bits to serial it receives only the three letters for the first time, then stops receiving further. Then I have to reset the controller to receive further. But its ok if I am sending characters one by one.
I am using CCS compiler for programming. Please help me in clearing this problem.

[PCM programmer]

To fix your problem:

Use an interrupt-driven serial receive buffer. Call the bkbhit() function
to see if characters are available in the buffer. Then call bgetc() to get
the characters. Also add ERRORS to your #use rs232() statement.
See the following CCS example file which shows how to do this: