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Error could not find USBtiny device (0x178/0xc9f)
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Error could not find USBtiny device (0x178/0xc9f)

by bdodds on Tue Aug 20, 2019 12:38 pm

I'm using the kit from here I got a few years ago.
Mac OS 10.14.6 on a MacBook Pro with AVRDUDE in the terminal.
The USBtinyISP was working just fine till today when I started getting the Error could not find USBtiny device (0x178/0xc9f)

The green light comes on and I can see the device listed in the system report for connected USB devices...

I have used it hundreds of times on this same laptop without issue. How would I test to see if the device is indeed still working?

Screen Shot 2019-08-20 at 9.27.55 AM.png
Screen Shot 2019-08-20 at 9.27.55 AM.png (91.86 KiB) Viewed 268 times

bdodds
 
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Re: Error could not find USBtiny device (0x178/0xc9f)

by bdodds on Thu Aug 22, 2019 12:09 pm

No one has any ideas? Is anyone else using the USBTiny on MacOS 10.14.6 successfully?

bdodds
 
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Re: Error could not find USBtiny device (0x178/0xc9f)

by protodome on Tue Sep 17, 2019 11:25 am

Just signed up to say that I'm having exactly the same issue. Everything was working fine until a few days ago, now avrdude inexplicably can't find the USBtiny device, despite it being listed in connected USB devices. Currently using a Macbook Pro 13" 2019 on 10.14.6.

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Re: Error could not find USBtiny device (0x178/0xc9f)

by protodome on Tue Sep 17, 2019 9:09 pm

Okay, I solved it (at least for me). If you simply reinstall avrdude using Homebrew (then restart) it works. Perhaps a recent update broke something?

Hope this helps someone else!

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Re: Error could not find USBtiny device (0x178/0xc9f)

by bdodds on Tue Sep 17, 2019 10:04 pm

I think I installed using Crosspack, can you provide a link about installing via Homebrew?

bdodds
 
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Re: Error could not find USBtiny device (0x178/0xc9f)

by protodome on Tue Sep 17, 2019 10:20 pm

It's pretty simple. Follow the instructions here: https://brew.sh/

You'll need to copy the following into Terminal to install Homebrew:
Code: Select all | TOGGLE FULL SIZE
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"


Then, once it's done, you'll need to enter:
Code: Select all | TOGGLE FULL SIZE
brew install avrdude


Restart your machine and you should be good!

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Re: Error could not find USBtiny device (0x178/0xc9f)

by bdodds on Wed Sep 18, 2019 8:12 pm

Thanks I'm going to give this a try when I find a free moment.

bdodds
 
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Re: Error could not find USBtiny device (0x178/0xc9f)

by bdodds on Mon Sep 23, 2019 9:57 pm

protodome, you rock.

I installed Homebrew and then had it install Avrdude again and it works now!

I'm guessing in the 10.14.6 update broke it because another mac running 10.14.5 still works.

bdodds
 
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Re: Error could not find USBtiny device (0x178/0xc9f)

by PEAcademy on Fri Oct 04, 2019 11:54 am

protodome wrote:Okay, I solved it (at least for me). If you simply reinstall avrdude using Homebrew (then restart) it works. Perhaps a recent update broke something?

Hope this helps someone else!



Thank you @protodome! It sure helped me. I had the exact same issue and reinstalling avrdude worked. It had been working just fine not long ago, but then I kept getting that error.

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