atmega 16pu coudl it be locked?

Go To Last Post
4 posts / 0 new
Author
Message
#1
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I bought a batch of 5 chips off ebay and it seem all can be written to , verified, and read from. When I plug it it to the system I get unknown device. But one chip that I have works fine. I have tried reburning those 5 with no luck. I tried reburning my good chip and it works fine. The chips are identical. I was thinking could it be locked? I dont know what a locked chip means, but heard its bad. If so can it be unlocked?

Sorry new to avr toys.

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

If you "chip erase" then any previous locking (and the internal code) are wiped and you are left with a "clean" chip.

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Is this the same as the erase feature it reports during writing? If so then what could be wrong its its not locked?

AVR-studio log,

Quote:

Reading FLASH input file.. OK
Setting mode and device parameters.. OK!
Entering programming mode.. OK!
Erasing device.. OK!
Programming FLASH .. OK!
Reading FLASH .. OK!
FLASH contents is equal to file.. OK
Leaving programming mode.. OK!

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Install avr studio's new version and it fixed it..