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Posted by Steve Williams on February 28, 2010 at 5:01pm

There gps connectors on both the AP board and the shield. Which one does my EM406 plug into? I have used the shield socket but get no blue light.

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Steve Williams February 28, 2010 at 7:29pm

Ok I was set for UBLOX. Changed to 1 SIRF.

But now I can't download. I have done many times before.
I get :
Binary sketch size: 15652 bytes (of a 30720 byte maximum)

avrdude: stk500_getsync(): not in sync: resp=0x80
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x6e

Rebooted - no change.
3D Robotics

Chris Anderson February 28, 2010 at 5:30pm

Plug it into into the shield. Mark's comment isn't quite right. The setting should be 1 (SIRF) for the EM406
Developer

Mark Colwell February 28, 2010 at 5:27pm

That is the correct place, and header file needs gps_protocol set to 0

// Airframe settings
//1-1
#define GPS_PROTOCOL 0 // 0 = NMEA, 1=SIRF, 2=uBlox, 3 = IMU //Choose protocol

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