Communicating with GPS over UART

Projects Networking, Protocols, and Devices
1

Hi all,

I am truing to use the GP-635T (GPS Receiver - GP-735 (56 Channel) - GPS-13670 - SparkFun Electronics) to communicate with an Arduino Pro over its hardware UART.

I have the RX pin of the Arduino connected to the TX pin of the Arduino. I am still using the TX pin of the Arduino to send serial messages to the console. That TX pin is also connected to the RX pin of the GPS unit.

I turned this on to test it, but it is not reading any of the serial stream being sent out by the GPS unit. I checked with a logic analyzer to make sure that the GPS was indeed sending out data.

In the past I have always used a SoftwareSerial instance to interface with this device. Is there anything I should be aware of when using the ATmega328's native UART port?

Thanks,
Jake

2

is it possible to put your code. Also let us know SLD diagram how arduino board and GPS being connected

3

I have the RX pin of the Arduino connected to the TX pin of the Arduino.

Why?

Do you want the Arduino to talk to/listen to the GPS OR the PC? Yes is the wrong answer. So is both.