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Tips and questions relating to the GPS modules from SFE
Has anyone had any problems with 115200 using the GM862 Evaluation Board - RS232 V3 board and if so did you find a solution? I can transmit from the PC to the board just fine at 115200 but I get garbage back. Its not until I get to close to 9600 that I can have reliable communication with the GPS.

I also have the same board but USB and it works just fine. I just can not do any of the python debugging as I can not get the Multiplex software to work with the USB card.

Any advice?
By maokh
Do you have flow control turned on?