I couldnt get it to work.
I tried a Pharos GPS-360 that I had on hand. It came with MS Streets & Trips 2005. Its SIRF-II based, 3.3V-5.5V input. Output is 4800 8N1 TTL 0-2.5V.
The cord had already been hacked up (It has a PLL serial-usb device in the cord). I had used this when I was playing around with APRS last year, so I am very familiar with the pinout of this unit & so forth.
I powered the reciever separately with 5vDC, and connected GND and TX from the GPS to pins 2, 6 on the PSP. When the GPS is powered, the TX voltage starts fluctuating between 0-2.5V. (It does send sentences even if no satellites are seen)
I tried it with no resistor, & a 1k resistor, but the program sits at "please connect gps to psp"
What is the default bit-rate for the PSP?
Surely the data that the GPS is spitting out is interoperable with the PSP.....
Take a look at this, its dated but relevant for sure:
http://www.msh-tools.com/GBA/gbagps.html
(APRS =GPS + HAM radio for realtime GPS tracking)
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