Interfacing GPS receiver module with PIC16F876

[BrianT]

I am not sure you can use the explicit array approach (Rx[26] = "," etc) as the NMEA sentences are variable length and what might be a comma this time may not be a comma when the field data changes.

I posted code to decode/parse GPS sentences a year or two back.
Have a look at:-

http://www.picbasic.co.uk/forum/show...ghlight=parser

HTH
BrianT

[Dave]

theblackhourse, This section of code does not look right...
'_______________________________

temp2 = temp2 >> 1
temp1=temp2
charcount = charcount + 1
temp2 = RX[charcount]
temp1.7 = temp1.7 OR temp2.2
temp1.1 = temp1.6 OR temp2.1
temp1.5 = temp1.5 OR temp2.0
TX[txcounter] = temp1
txcounter = txcounter + 1
'_______________________________

I beleive the line "temp1.1 = temp1.6 OR temp2.1" should be "temp1.6 = temp1.6 OR temp2.1" Also I think with a little thought you can get this series of lines down to about 10 or so...

Dave Purola,
N8NTA