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  VS Arduino › Visual Micro › Installation & Troubleshooting › AVRDUDE Checksum Fail on MEGA/UNO
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Hot Topic (More than 8 Replies) AVRDUDE Checksum Fail on MEGA/UNO (Read 12208 times)
nat45929
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AVRDUDE Checksum Fail on MEGA/UNO
Feb 9th, 2015 at 3:13pm
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Hey all,

I am using Visual Micro inside visual studio to develop. Recently since I switched I noticed that my MEGA 2560 is getting a checksum error on each upload. The uploads appear to work however as the code changes and functions properly. Error:


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avrdude: stk500v2_recv(): checksum error
avrdude: verification error, first mismatch at byte 0x36bc
         0xbc != 0x9f
avrdude: verification error; content mismatch




So I tried with one of my uno boards and got the same behavior. The regular Arduino IDE works fine uploading the basic blink sketch on both MUCs.

Any ideas on what is happening?

Thanks,
nat
  
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Tim@Visual Micro
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Re: AVRDUDE Checksum Fail on MEGA/UNO
Reply #1 - Feb 9th, 2015 at 5:51pm
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Hi,

Strange normally you would only see this if you have the wrong board selected or the wrong upload type. 

Visual Micro uses the avrdude.exe from the arduino ide config to upload, so we would expect the same results in Visual Micro as the Arduino Ide.

Can you please switch on "tools>visual micro>compiler verbose" then try upload and post the output. This will show us which version of arduino you are using, which board you have selected and the type of upload etc.

Thanks
« Last Edit: Feb 9th, 2015 at 5:54pm by Tim@Visual Micro »  
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nat45929
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Re: AVRDUDE Checksum Fail on MEGA/UNO
Reply #2 - Feb 9th, 2015 at 6:59pm
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I'll post the output later this evening when I am at the board. Off the top of my head, i think things started being funky after playing with the debugger, could a setting in there have messed things up?
  
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Tim@Visual Micro
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Re: AVRDUDE Checksum Fail on MEGA/UNO
Reply #3 - Feb 9th, 2015 at 7:20pm
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No the debugger just uses serial. Look forward to seeing the output thanks
  
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nat45929
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Re: AVRDUDE Checksum Fail on MEGA/UNO
Reply #4 - Feb 9th, 2015 at 10:41pm
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Here is the output, I am using a MEGA 2560 on COM7

I had to use OneDrive because the file is 1MB.

http://1drv.ms/1zQqGoz
  
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Tim@Visual Micro
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Re: AVRDUDE Checksum Fail on MEGA/UNO
Reply #5 - Feb 9th, 2015 at 11:19pm
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Thanks for the output

Does the arduino ide upload your sketch correctly?
Does visual micro upload the blink sketch correctly?

Thanks
  
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nat45929
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Re: AVRDUDE Checksum Fail on MEGA/UNO
Reply #6 - Feb 9th, 2015 at 11:31pm
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The blink sketch uploads fine in both the Arduino IDE and a new Visual Micro solution. I am rebuilding my project in a new solution to test something else so I'll see if that fixes things.
  
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Re: AVRDUDE Checksum Fail on MEGA/UNO
Reply #7 - Feb 9th, 2015 at 11:34pm
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Ok, you have not said if the arduino ide can upload your sketch?
  
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nat45929
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Re: AVRDUDE Checksum Fail on MEGA/UNO
Reply #8 - Feb 9th, 2015 at 11:47pm
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I Can't really test mine because of the size. I did notice when I upload at the end of the RX cycle back, the pin 13 LED flashes with the RX LED.
  
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Re: AVRDUDE Checksum Fail on MEGA/UNO
Reply #9 - Feb 9th, 2015 at 11:52pm
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Sorry I don't understand. What do you mean by you cant test because of the size?
  
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nat45929
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Re: AVRDUDE Checksum Fail on MEGA/UNO
Reply #10 - Feb 10th, 2015 at 12:03am
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Sorry, it was just a pain to move around. It failed in the IDE as well. it seems like the 0x3### blocks always fail.

Thanks for the help and quick replies!  Smiley
  
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Re: AVRDUDE Checksum Fail on MEGA/UNO
Reply #11 - Feb 10th, 2015 at 12:06am
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Ok thanks for the update. You should be able to open the sketch from any location in either ide?
  
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nat45929
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Re: AVRDUDE Checksum Fail on MEGA/UNO
Reply #12 - Feb 10th, 2015 at 12:08am
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I had to adjust sketchbook locations. Either way, it fails in the IDE. Is there a way to test the flash banks?

Side note: rev 1.6.0 of the IDE went out today, imma try it and see what happens. I doubt it will help.
  
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Re: AVRDUDE Checksum Fail on MEGA/UNO
Reply #13 - Feb 10th, 2015 at 12:14am
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Thanks for the update. Maybe they have fixed it in 1.6 but think its same avrdude as 1.5.8

Please post anything you find that might help others
  
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