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Thread: DIY: Simple PSP-GPS hookup

                  
   
  1. #11
    PSP Coder deniska's Avatar
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    Quote Originally Posted by lewbacca
    nice. thank you for confirmung my research about the compatibility of the gps devies

    i ordered myself a 231 today. i will tell you if it works =)

    btw.. do i need to recode your testing programm? wouldnt be that problem, but knowing it, before testing and find it not working would be better^^
    I don't think you need to recode anything...
    From what I remember, 231 has exactly the same interface spec...

  2. #12
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    this is actually pretty kewl stuff
    I remember when a friend and I built a security system(shool told us so), all from scratch.
    This was the very first time we used a microcontroller
    I think I'll buy a microcontroller programmer for my own personal use
    Basically the microcontroller checked a applied voltage, (can't remember the pin) and if it goes under a certain value it sends AT commands through the serial port to the modem and a sms was sent
    The whole developing stuff was quite entertaining
    We also created a PCB for it

    keep it up deniska
    I think I'll buy a similar GPS thing

  3. #13
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    Can someone recompile this for 4800 baud? Please?


    I am in the process of educating myself on how to use the SDK, but I want to play with my gps/psp!

    I mananged to make an EBOOT with the bitrate changed to 38400, but it was full of errors.

  4. #14

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    isnt it already at 38400?

    Code:
    pspDebugSioSetBaud(38400);

  5. #15
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    I meant 4800

  6. #16
    PSP Coder deniska's Avatar
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    Here you go... (4800)
    Let me know if it works...

  7. #17

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    Quote Originally Posted by A Fn NOOB
    I meant 4800

    which gps mouse are u going to use?



    @deniska: are you planning to release the mapviewer sourcecode?
    i am very interested in getting my hands on that one

  8. #18
    PSP Coder deniska's Avatar
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    Quote Originally Posted by lewbacca
    @deniska: are you planning to release the mapviewer sourcecode?
    i am very interested in getting my hands on that one
    Of course, I'll release it... l

  9. #19
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    Default Gps-360

    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)

  10. #20
    PSP Coder deniska's Avatar
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    Quote Originally Posted by A Fn NOOB
    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)

    Try to use the serial echo prog, included with lua player... see if you can get anything on a screen with it...

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