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Fails to download ProTrinket using USB method (Read 2357 times)
Richard Arndt
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Fails to download ProTrinket using USB method
Jul 7th, 2017 at 4:08pm
 
Visual Studio 2017
Visual Micro (current version)
Adafruit Pro Trinket 5V 16MHz

Visual Micro fails to download ProTrinket following Adafruit's instructions:
https://learn.adafruit.com/introducing-pro-trinket/starting-the-bootloader

However, programming works with Arduino IDE using either USB or FTDI methods.

See attached VMDownloadLog.txt

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Tim@Visual Micro
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Re: Fails to download ProTrinket using USB method
Reply #1 - Jul 8th, 2017 at 5:16pm
 
For the USB method you need to select the programmer and enable the "always use for uploads" property next to the programmer selection.

There is a "micro programmer" toolbar for one click operation otherwise you can use the vMicro>Uploader menu,

Can you post the output for FTDI to show why that failed?

Thanks
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Tim Leek
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Richard Arndt
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Re: Fails to download ProTrinket using USB method
Reply #2 - Jul 11th, 2017 at 6:54pm
 
As noted in the title of post, the FTDI method works.

Yes, as recommended, setting "Always use programmer for uploads" worked for USB method.

Thank you.
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Tim@Visual Micro
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Re: Fails to download ProTrinket using USB method
Reply #3 - Jul 11th, 2017 at 9:21pm
 
Hi,

Sorry it wasn't clear,

All boards have a usb port that is a standard upload port which might use ftdi or a.n.o upload method. So the syntax here is unique to adafruit and the trinket board.

This also suggested (at quick glance) that vm was failing for both Smiley

Quote:
However, programming works with Arduino IDE using either USB or FTDI methods.


I have purchased one, it arrived today and will try it over the next few days.
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Tim Leek
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