Replies to This Discussion

Permalink Reply by Michael on April 23, 2012 at 2:09pm

I got exactly the same issue since today. could someone please advise?

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Permalink Reply by Jay on April 23, 2012 at 3:52pm

Same problem here just received my APM2 today and I am unable to initialize with the sdcard in the card slot. Everything works beautifully with no sdcard plugged in. 2.5.4 firmware

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Permalink Reply by Jay on April 23, 2012 at 9:00pm

Okay got it working after following this ~~> http://code.google.com/p/arducopter/wiki/AC2_Troubleshooting#My_APM...

Basically plug the sdcard in after initialized, wait for it to erase it takes a long time around 5-10 minutes.

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Permalink Reply by Michael on April 23, 2012 at 10:06pm

I already did that 5 times. How exactly did you do it? I connect without dataflash card to Mission Planner, insert the card and go to the Terminal. It then starts to erase. After about 10 minutes, I got my LEDs flashing on again and can arm the motor. BUT after plugging it off, the board is locked again...

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Permalink Reply by Michael on April 24, 2012 at 12:34am

In the MP Terminal it says about the Card: format version: 20000011 expected format version 28122011

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Permalink Reply by Emile L. on April 24, 2012 at 6:18am

Thanks Jay I think it worked.

I plugged the SD card in and powered up. No red activity light, blue GPS lights, power light was on and all ESCs were beeping through the whole process. It took about 8 min then it booted up. Now I just have the Boot loader problem and need to hit the reset to get it to boot, but it does with the SD card in place, The SD card format must have gone bad and the unit would seem to hang up but it was actual formatting the card.

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Permalink Reply by Michael on April 24, 2012 at 12:00pm

So you were lucky, it´s still not working for me...

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Permalink Reply by Emile L. on April 24, 2012 at 1:28pm

I didn't have much time to try it last night. The one thing I noticed that when formatting the card (that looked like it failed to boot) the ESC's were beeping. Now when it fails to boot (boot loader issue) with the power applied and before I push the reset the ESCs do not make any noise. One of the things I want to try tonight to see if moving the card in the holder effects the boot. Before all I needed to do was move the card 1 mm and it would boot but would not register a SD card.

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Permalink Reply by Michael on April 26, 2012 at 9:47pm

I opened a ticket for this topic under in the wiki issue list. If you also got this problem, please vote for it (click on the star in the upper left corner)

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3D RoboticsPermalink Reply by Chris Anderson on April 26, 2012 at 10:00pm

You may have a defective dataflash card -- I can't replicate this issue on any board I've tried. Have you contacted customer support? (help@3drobotics.com)

Permalink Reply by Emile L. on April 29, 2012 at 7:15am

Well it did it again! Come to go flying and it will not boot. Had to pull the SD card so i could fly.

When I got back to my hangar I put it back in and made some observations. The esc for 1 and 2 motors were beeping during the failed boot, even after the reset. I noticed this earlier in my post so I let it sit. After about 6 min it started up. Now it works again and no beeping when it waits for the reset button.

I think the use of the reset button to get it to boot is leading to a corruption of the sd card. Once the sd card is corrupt it fails to boot but is actually reformatting the card.

Emile

Permalink Reply by Andke on April 28, 2012 at 9:43am

"Same problem", - my APM2 says

"no dataflash inserted" 

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