I just successfully loaded code base 2.6.2 for ArduPilot and when I attempt to power up the AP only get a red light and the blue GPS light never comes on, doesn't blink or anything.
The GPS light did start blinking after the code was successfully loaded while connected to the computer but after pwering down and removing the FTDI cable and attaching the GPS and powering back up it doesn't come on.
ArduPilot 2.6.2 code base
Shield V1 (red)
Setting in AP_Config file:
#define SHIELD_VERSION 0 // Old (red) shield versions is 0, the new (blue) shield version is 1, -1 = no shield
#define AIRSPEED_SENSOR 1 // (boolean) Do you have an airspeed sensor attached? 1= yes, 0 = no.
#define GPS_PROTOCOL 1 // 0 = NMEA, 1=SIRF, 2=uBlox, 3 = ArduIMU, 4 = MediaTek, 5 = Simulated GPS mode (Debug), -1 = no GPS
//0-4 Ground Control Station:
#define GCS_PROTOCOL 0 // 0 = Standard ArduPilot (LabVIEW/HappyKillmore), 1 = special test, 2 = Ardupilot Binary(not implemented), 5 = Jason's GCS, -1 = no GCS (no telemtry output)
//0-5 and 0-6 are for use with Thermopile sensors
#define ENABLE_Z_SENSOR 1 // 0 = no Z sensor, 1 = use Z sensor (no Z requires field calibration with each flight)
#define XY_SENSOR_LOCATION 0 //XY Thermopiles Sensor placement
//Mounted right side up: 0 = cable in front, 1 = cable behind
//Mounted upside down: 2 = cable in front, 3 = cable behind
#define BATTERY_EVENT 0 // (boolean) 0 = don't read battery, 1 = read battery voltage (only if you have it wired up!)
#define INPUT_VOLTAGE 5200.0 // (Millivolts) voltage your power regulator is feeding your ArduPilot to have an accurate pressure and battery level readings. (you need a multimeter to measure and set this of course)
#define THROTTLE_FAILSAFE 0 // Do you want to react to a throttle failsafe condition? Default is no 0, Yes is 1
#define THROTTLE_PIN 11