QUESTION

Question

We have older revision M10578-A3 parts that are working fine in our design. We just built boards with newer GPS modules and the GPS isn't working. Markings on the parts are shown below. Any insight would be helpful.

Answer 1

Here is the change that needs to be made:

The 2-digit Talker ID is shown below as a reference. Please see the MTK NMEA Sentence Output document for the detailed definition and full list of explanation to the identifier.

Default Talker ID update table FW: AN-10-0016-A		FW: AN-10-0017-A
NMEA Sentence	Previous Talker ID		Updated Talker ID
--GGA	GP		GN
--GSA	GP; GN		GP; GL
--VTG	GP		GN
--RMC	GP; GN		GN

Adjust the firmware to look for and accept the updated Talker ID of “GN” that is listed in the Default Taker ID Update Table.