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Need Help in GPS interfacing with PIC18F452

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Jun 28, 2011
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Hello guys,

I m working on a project "Navigation RObot using GPS Control" . I am using Garmin Etrex H and Pic18f452.

My task is to interface GPS with PIC and get longitude and latitude from GPS. I have connected RX pin of GPS with TX pin of PIC .In between i m using MAX 232 ,and I have made a simple program to get data from GPS to PORT B , but I m not getting anything pls help guys .

I have checked everything but couldnt get the error :(

If i connect the gps directly to PC ,i can see the NMEA coding on hyper terminal but when i connect it to pic i couldnt find anything .

Waiting for the replies desperately

---------- Post added at 18:43 ---------- Previous post was at 18:42 ----------

pls guys reply soon .i have to submit it on 4th july:(

---------- Post added at 18:52 ---------- Previous post was at 18:43 ----------

pls guys reply soon .i have to submit it on 4th july:(

i have read this thread and ur replies are helpful there but i m unable to solve my problem.... my circuit is same as shown in this post but there is no data cming to PIC.

I have interface gps wid pic and in programming i m getting data on PORT B but nothing is coming to port B ,is there any circuit problm or programming problem. plz bro help me

---------- Post added at 00:52 ---------- Previous post was at 00:51 ----------

can u contact me on facebook .... i want to have live chat wid u to tell u my problem in detail

---------- Post added at 00:55 ---------- Previous post was at 00:52 ----------

my id is

Dont use forum as mobile and use short form of words or use sms kind of typing in the forum...

you will be warned 2 times before banning you..
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