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Need all the sensors connected to aquire GPS lock?

Posted by RedQueen on March 19, 2010 at 9:11pm

I am simulating GPS via the FTDI and not able to get GPS lock.  Are all the servos and sensors required to be attached in order to aquire GPS lock?

 

I am currently attaching the bind plug, applying power, turning on RC radio, sending GPS via GPS emulator 1.2.6 over FTDI and waiting for the blinking GPS light to change....  nothing happens, just keeps blinking.  The AP sits in a removable tray and only has the elevator servo still attached while on my workbench.  Will the lack of XY and Z sensor connections along with the other two servos cause the code to hang and not aquire lock? 

 

Any help you can give is greatly appreciated.

 

-Mike

 

 

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Replies

  • RedQueen March 26, 2010 at 12:59pm
    Problem worked around. Split out the FTDI cable and pushed Tx to the 5v GPS IN pin. For lack of a better solution that will have to do. Instant GPS lock.
  • Greg Fletcher March 19, 2010 at 10:13pm
    The GPS comes from a special valid code from the GPS. The other analog sensors have nothing to do with the blue LED.
    I don"t know what protocall your emulator uses, but the correct one must be selected in the "whatever.h" file(header file).
    There are thee choices, EM406, NMEA, UBLOX. Try NMEA. Look for this line in the easystar_25 tab and set it.

    #define GPS_PROTOCOL 2 // 0 = NMEA, 1=SIRF, 2=uBlox, 3 = IMU, 5 = Simulated GPS mode (Debug)
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