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Replacement Trinket Pro... same setup... can't upload code
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Replacement Trinket Pro... same setup... can't upload code

by Dougmeister on Sat May 19, 2018 6:50 pm

Getting the dreaded "avrdude: Error: Could not find USBtiny device (0x1781/0xc9f)".

I changed no settings on the computer. I've tried two different USB ports so far with the same result.

I have the correct board "Trinket Pro 3v/12 MHz (USB)" and the programmer "USBtinyISP".

Code compiles just fine.

Do I need to re-flash the bootloader...?

Please help.

Edit: when I power the Trinket Pro via USB, the green LED is solid and the red blinks 2x quickly then pauses... not the "pulsating" on and off that I remember from the 1st one...?
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Dougmeister
 
Posts: 42
Joined: Mon Feb 01, 2016 7:27 pm

Re: Replacement Trinket Pro... same setup... can't upload co

by Dougmeister on Sat May 19, 2018 9:44 pm

Nevermind.

After a few hours of searching and trying different ideas, I put a USB extender between the computer's USB port and the micro USB cable.

Dougmeister
 
Posts: 42
Joined: Mon Feb 01, 2016 7:27 pm

Please be positive and constructive with your questions and comments.