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to much useless data received with UART, what doing??

 
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spilz
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to much useless data received with UART, what doing??
PostPosted: Fri Jun 20, 2008 1:06 am     Reply with quote
hello,
I have a problem with a pic 16f876a and a gps

on start the gps is at 115200bps and 5 trames/s and I need to change setting for it become 4800bps and 1 trames/s .

I now how to do that but the time that I change its setting, the pic has received to much data on uart and stop.

can I stop to receive data during 2s? or can I reset uart to avoid over flow?

thanks for your help and sorry for my bad english

spilz
Ttelmah
Guest
PostPosted: Fri Jun 20, 2008 2:05 am     Reply with quote
Add the 'ERRORS' directive to your #use RS232 definition.
Once you have sent the initialisation string to the modem, add a simple loop to flush the couple of characters that the UART can hold. So:
Code:

while (kbhit()) getc();

The ERRORS directive, will make this also clear the overrun flag, which will otherwise lock up the UART.

Best Wishes
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