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Update GPS Mediatek firmware with just the serial port com of my computer.....?

Posted by Thierry on January 14, 2011 at 6:19am

Hello,

 

I have just the Mediatek via Fahph.com and after tests with the 1.5 of Pirate the blue led is fix after 45 at 70 s. and after i don't have the 3D red led....

 

I receive this days the gps and i think there' s a firmware problem....

 

i want update with the september version, but i don't have the usb cable...

 

Is it possible for connected via the rs232 port ( db9  com 1  port  of my computer)...?

 

I think connected  :

input of gps ---------) out txd pin3 of female db9

output of gps ------) in rxd pin2 of female db9

the gnd of gps -----) in gnd data pin5 of female db9

And the 5v  ---------) in my little regulated power supply 5v

Are there any cable or other for the db9 pin .?

 

Good week at you !

 

Thierry

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Replies

  • Developer
    Jani Hirvinen March 3, 2011 at 8:19am

    If you have normal FTDI cable you can easily connect to your GPS with it.

     

    Check your wiki pages on how to connect FTDI cable and Mediatek together.

     

    If you still cannot update it, please send it back to jDrones and we will fix it for you. (jDrones is taking care of all old Fahpah customers).

  • Christopher Cooper March 2, 2011 at 7:20pm
    You'll need to put one of these http://extremeelectronics.co.in/avr-tutorials/rs232-communication-t... between your db9 port and RX/TX pins on the gps. Note the VCC and GND pins (16 and 15 respectively) are not shown in the circuit diagram.
    RS232 Communication – The Level Conversion
    Hello and welcome back. Continuing our discussion on RS232 serial communication in this part we will make a RS232 level converter. In the last tutori…
  • Thierry January 14, 2011 at 7:52am

    Hello Sebastian,

     

    And thank's for your respond, i waited 2 weeks for have a "good firmware "  via Fahpah.com, i test with this config...

     

    #define IsGPS               // Do we have a GPS connected?
    #define IsNEWMTEK           // Do we have MTEK with new firmware?
    #define IsMAG               // Do we have a Magnetometer connected? If have, remember to activate it from Configurator !
    #define UseBMP              // Do we want to use the barometer sensor on the IMU?
    #define CONFIGURATOR        // Do se use Configurator or normal text output over serial link?

     

    And there's not the red led....

     

    I must buy a fdti cable and update i think.....

     

    Good week end at you !

     

    Thierry

    http://Fahpah.com/
  • Sebastian Gralla January 14, 2011 at 7:24am

    no!! rs232 from a pc puts out about 13V signals, you would kill your unit

     

    you need a signal konverter (like MAX232) to use this com-port

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