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  VS Arduino › Visual Micro › Visual Studio 2019, 2022, 2026 › Can't upload to ATtiny85 board
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Normal Topic Can't upload to ATtiny85 board (Read 4820 times)
Horst12
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Can't upload to ATtiny85 board
Jan 21st, 2018 at 10:03pm
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I am using a DigiSpark ATtiny85 board and are able to upload my build using Arduino IDE. When I try the same with Visual Studio I get message "Upload requires a serial port or programmer. Upload cancelled." 

My Upload settings are: Micronucleus

Any idea what to do?

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Horst
  
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Tim@Visual Micro
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Re: Can't upload to ATtiny85 board
Reply #1 - Jan 21st, 2018 at 11:20pm
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Hi,

What is the vMicro>Uploader>Programmer set too in Visual Micro?

Is "always use programmer for upload" set?

« Last Edit: Jan 21st, 2018 at 11:20pm by Tim@Visual Micro »  
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Re: Can't upload to ATtiny85 board
Reply #2 - Jan 22nd, 2018 at 9:32am
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I changed my settings to:
Uploader -> Programmer -> micronucleus
Uploader -> Always use Programmer ... checked

Now I get a different error message:

Uploading 'BlinkDEBUG' to 'Digispark (Default - 16.5mhz)' using 'Micronucleus'
Error during upload using programmer
The programmer process failed because runtime arguments could not be established
  
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Re: Can't upload to ATtiny85 board
Reply #3 - Jan 22nd, 2018 at 3:29pm
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Thanks, I will try it.

Please confirm how you installed the hardware you are using? IE: What .json url did you add to the arduino ide board manager?
  
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Re: Can't upload to ATtiny85 board
Reply #4 - Jan 22nd, 2018 at 4:04pm
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I used http://digistump.com/package_digistump_index.json
from Digispark https://digistump.com/wiki/digispark/tutorials/connecting
  
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Re: Can't upload to ATtiny85 board
Reply #5 - Jan 28th, 2018 at 12:18am
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I just tried the board and found that if a serial port has not been set then boards that don't use COM ports or IP addresses would fail to upload. Setting any COM port would allow the upload to happen properly. 

Most users have at least one board with a COM port and have used with Visual Micro at some stage. Therefore they would not have encountered this error. So thanks for the report!

Fixed in next release due shortly.

FYI

You need to un-check always use programmer. The arduino ide is not using a programmer unless you click "Upload using Programmer". It's confusing to see a programmer selection in the arduino ide most of the time.

  
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