Trying to program an ATTTYIN1614 with jtag2updi.


I was able to use this tool to program an ATTINY1626-XFR and ATTINY807-MNR, but I'm getting an error with ATTINY1614-SSFR.

avrdude: Expected signature for ATtiny1614 is 1E 94 22
         Double check chip, or use -F to override this check.
  • If you want to make the answer follow more from the question, the part of the avrdude output listing that shows the signature that was actual read would be helpful.
    – timemage
    Jul 28, 2021 at 23:18
  • @EdHayes3 if you do not indent the URL, then it becomes clickable ... indented lines are formatted as code
    – jsotola
    Jul 29, 2021 at 1:22

1 Answer 1


I had the wrong ATTiny1614 selected. Needed to select the non-optiboot option.

enter image description here

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.