AVR Dragon

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

One of these should be in everyone's AVR toolkit. Sad to see Microchip Atmel discontinue it. Such a useful piece...especially for unbricking misconfigured fuse settings that prevent ISP access. Most useful for production batch programming as well.

 

I just recently added the HV Parallel Programming header, the device pin header, and the 40 pin ZIF socket to mine. I had accidentally bricked a SOIC-20 ATtiny26, and with an SOIC adapter I was able to successfully rewrite the fuses with it, allowing ISP access once again.

 

Especially useful for presetting fuses and pre-flashing the Optiboot bootloader for devices being installed into an Arduino.

 

Wish I knew where to pick these up from on the used market. Would love to grab a few just to have on hand in case one fails.

 

Jon Wilder
Freelance Embedded Engineer

Last Edited: Sun. Mar 8, 2020 - 04:45 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Jon,

 

If you are concerned with your Dragon's longevity, you should build a Dragon Lair (http://www.aplomb.nl/TechStuff/Dragon/Dragon.html ) . A schematic is about half-way down the page.  It isolates the target micro controller from the Dragon's output.

 

Alan

Last Edited: Sun. Mar 8, 2020 - 01:24 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Jon Wilder wrote:
Would love to grab a few just to have on hand in case one fails.

It's not a matter of if, but when it fails.....  

I'm using one for production programming now, with one spare left, I have two broken ones, I hope to fix some day.

 

Jim

 

 

 

 

 

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

Jon Wilder wrote:
Wish I knew where to pick these up from on the used market.
or EOL distributor

AVR Dragon availability | AVR Freaks

 

"Dare to be naïve." - Buckminster Fuller