Comment by Knut Graf on July 14, 2012 at 10:08am

My dataflash card had stopped working. This appeared to have happened during a regulator weekend of flying, without a crash, but I did have one crash a few weeks before that.

Upon close examination, one of the exposed resistors on the card was mechanically damaged. Check if that 's the case with yours. I contacted support at 3DR, and they helped me out.

Developer Comment by jasonshort on July 14, 2012 at 1:10pm

Some chips were manf out of spec by Atmel and have erase problems when using the 'chip erase' function. The Git Trunk has a fix for this. It falls back to a slow, but more reliable manual erase.

Jason

3D Robotics Comment by Chris Anderson on July 14, 2012 at 1:55pm

What Jason means is that this will be fixed in the next public version of the code, out early next week. 

Comment by Eagle on July 14, 2012 at 3:48pm

I'm confused... again... I read some comments regarding adding tapes and/or a piece of paper to help the dataflash card stay put in is socket solve the problems... I also add this behaviors with the card.  Now that it is working... I avoid to touch it!  But Jason and Chris are you saying there is a software issue with easing? In my mind that does not explain explain CLI mesage "no DataFlash inserted".

 

Comment by Eagle on July 14, 2012 at 3:51pm

... ooops forgot! Love the hard works of My Geek Shows.  You guys are in action alright!

Keep up your good work and many thanks for sharing.

-Eric

Comment by Eagle on July 14, 2012 at 4:12pm

A lighter would probably help out in order to fixed the Hot glued clevis... you guys are hard core testers!

Comment by Greg Fletcher on July 14, 2012 at 5:52pm

Hey Guys don't worry abought the data flash they will work it out. You guys need to woorry more about your hardware. Come on guys, hot glue for a linkage that's supposed to be threaded? Lady luck is gonna give up on you if you don't do it right. I don't want to see this stuff again from GeekShow.

3D Robotics Comment by Chris Anderson on July 14, 2012 at 6:25pm

Eagle: We're referring to problems with erasing the dataflash and logs not showing up. 

JDrones Comment by Jani Hirvinen on July 15, 2012 at 8:20am

just to be sure, on next boards there will be no more external SD card. All high speed connections will be on main board so data can flow freely without any disruptions. Hopefully this will solve all problems on APM2 and we can get back to steadiness like in APM1

Comment by Gerard Toonstra on July 15, 2012 at 10:46am

I'd like to suggest that, before you move on to FPV, telemetry and other expensive stuff extra on board, to replace your plastic control horns and those skinny looking clevises. Metal should not immediately be necessary for the speed of the platform and the size of the ailerons, but something higher quality should only be a couple of quid and this is probably the weakest thing you have in the loop right now. I would personally not have thrown the thing in the air again after that "fix" :).

The control horn also looked brown yellowish. Is that discolored "by hand", or is this UV-sensitive plastic that becomes brittle after exposure to the sun?

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