Discussions

Garbage output mixed in w/ overlay MinimOSD

Posted by Don Megabyte on June 26, 2012 at 6:24pm

Here's what I'm running:

GoPro

MinimOSD w/ ArduCAMOSD_19_MAV10.hex

APM2 w/ 2.6

It _sort of_ works...in that it works fine, but in areas where there is NO overlay activity, there are garbage characters overlaid.

When I power up the OSD, at first I get a clear video feed, then as soon as OSD starts to boot, I see this garbage anywhere there isn't OSD generated overlay. Everything else works fine.

I've re-updated the firmware, and even tried dumping on the newest .mcm charset I could find, which made no difference. I'm NTSC but I've tried the settings for both w/ no difference.

I've searched around a bit and can't seem to find any posts about this occuring w/ other folks.

Ideas?

Thanks

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10, apm2, gopro, mavlink, minimosd

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Replies

Ivosch November 20, 2016 at 2:39pm

Actually in the new firmware is not possible disable OSD by screen switching so I load my previous firmware (MinimOsd_Extra_Copter_R800.hex) and it works now great again...
Ivosch November 20, 2016 at 10:22am

whohooo, finaly, I was able to get it work when I load new firmware and charset from the https://github.com/night-ghost/minimosd-extra.

night-ghost/minimosd-extra

Full rework of minimosd-extra with lots of news. Contribute to night-ghost/minimosd-extra development by creating an account on GitHub.
Ivosch November 20, 2016 at 8:56am

Same issue. I tried 5V trick and reload firmware + charset and no change :(

Any other ideas ?
Cecil Murray January 14, 2016 at 10:04am

Has this problem been figured out yet? this problem just showed up on my osd screen.
- J. Rivera > Cecil Murray January 15, 2016 at 6:49am
  
  I had the same problem. I am not sure what caused it but i fixed it by reloading the firmware and charset.
  - Rick Huebner > J. Rivera January 16, 2016 at 7:56am
    
    That worked a few times for me. The flicker got worse and the garbage on screen came back when I was at the field. Also try rebooting by unplugging the Pixhawk from the MinimOSD board. That will work a few times, too. When you get sick of all that and not flying...
    - Cecil Murray > Rick Huebner January 16, 2016 at 9:45am
      
      Did the 5V conversion and same garbage on screen. Rebooted OSD, same result. What can I try next?
      - Rick Huebner > Cecil Murray January 16, 2016 at 3:02pm
        
        Did you reload the charset after the fix? I think it actually corrupts the charset, so even after it is fixed, it needs one more charset update. Report back if this works or not. Just to clarify what I meant by unplugging it from Pixhawk, I meant unplug it while it is powered up. That helped some of the time. Do any of you guys see the flickering as well as the garbage?
        
        Cecil Murray > Rick Huebner January 17, 2016 at 7:06am
        
        No flicker just garbage. I'm waiting for a FTDI board so I can reload the charset. I'll let you know Tuesday how it works-out. Thanks!
- Rick Huebner > Cecil Murray January 14, 2016 at 2:00pm
  
  It has not come back since I converted to the 5v configuration. Use the diagram in the last figure on this page:
  
  http://copter.ardupilot.com/wiki/common-minim-osd-quick-installatio...
  
  I think the problem is with the regulator. In the 5v config, it does not use the regulator. It is kept separate in the 12v config to isolate noise, but I see no noise difference in the 5v config.