But for the record, most gps recievers can be configured via PC serial port. Sirf chipsets use "Sirfdemo", software that can change things like baud, or switch the output from nmea sentences to sirf sentences, among other things.
If it aint broke, though dont fix it
The psp theoretically could be used to send data to the gps for such purposes, but Id reccomend not even connecting the gps RX to PSP's Tx... uncharted waters doing that......
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