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Permalink Reply by Luc van Helfteren on June 20, 2012 at 3:30pm

Took a dump of the command like and it does not look healthy:

Opened com port

Init ArduCopter V2.6

Free RAM: 2370
FW Ver: 118
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load_all took 4232us
3No dataflash inserted3 COMPASS INIT ERROR

Press ENTER 3 times for CLI

G Q`'y !G QC^`'Z?!G Q.P`'?!G Q`'ic !update:35: gps read timeout 4944 0
G 3Initialising APM...R
Q`'?Q
`'8n !G Qs<`'> !G Q`'Q!G Q~`'A !update:35: gps read timeout 9749 4944
G 3Initialising APM...sQ`'L !G Q-{`'3?Q#`'?!G Qg`'-V !G Qi`'!update:35: gps read timeout 14554 9749

GPS
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disabled

3GROUND STARTw Qx!`'3"Initialising APM...@ Init Gyro #Q$`'?* %Q&`'p?* 'QE(`'C IMU
----------------------------------------
G_off: 0.01, -0.00, 0.03
A_off: 0.00, 0.00, 0.00

Ready to FLY )QK?*Quj +Q,Qd -Q.Q?/Q&?0Q?1Q?2QS 3Q+- 4Q] 5QF# 6Qx?7Q?8QvA

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Permalink Reply by Luc van Helfteren on June 20, 2012 at 3:52pm

It's almost like it is just not reading the whole top board. Have inspected the header connection but it all seems to be ok. Pretty stumped.

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Permalink Reply by George on June 20, 2012 at 5:46pm

Have you tried testing for 5v at the supply pins on the shield? They are the two pins on the opposite side of the board to the header connection, Vcc is next to C9. Might be a bad solder joint there.

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Permalink Reply by Luc van Helfteren on June 21, 2012 at 2:12am

I am a little confused by what you mean by the other side of the board from the header connection. Do you mean the 5v supply pin on the GPS module or one of the pins on the header between the main AMP2 board and the daughter board?

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Permalink Reply by Luc van Helfteren on June 21, 2012 at 2:23am

I think I may have had an epiphany. I bought my APM2 as a kit so I soldered the headers myself, and I think I have left some out between the main board and the daughter board. Do you have to solder the GND and VCC pins between these two or is the header all the connection that is required?

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Permalink Reply by Luc van Helfteren on June 21, 2012 at 2:27am

Sorry to flood this forum with my thinking out loud but I am pretty sure that this issue will be resolved when I actually solder the supply pins.

Silly me :)

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Permalink Reply by andycross1 on June 21, 2012 at 2:46am

Hi Luc

I had a simalar problem to you with the APM 2 it was to do with the 6 pins not soldering the connectors properly on the top GPS board (my fault), after I had re-done the connectors all worked fine.

BR

Andy

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Permalink Reply by Luc van Helfteren on June 21, 2012 at 2:57am

Yeah, it seems it is just my error in not soldering those pins at all. I will find out later when I finish work.

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Permalink Reply by George on June 21, 2012 at 4:08pm

Luc, 

Yes, no power is supplied via the 6 pin header, it is supplied via a Vcc and gnd pin on the opposite side of the daughter board. But it sounds like you may have got that all sorted out. Sorry for late answer, we must be opposites on time zone :) Good luck.

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Permalink Reply by Luc van Helfteren on June 22, 2012 at 1:29am

Soldered those pins and got it flying last night. Need to upgrade my motors though, cheap $25 for a set of 4 shake like a washing machine.

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