Reading/Dumping File from AT90USB646 BY ATMEL

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davisornaw
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Posted by davisornaw: Sun. Jun 16, 2019 - 02:17 AM
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Hello! Long story short I am trying to dump the program from AT90USB646 as This IC is used on a device that is no longer being manufactured.

How would I do this?
What programmer & program do I need?
Will I be able to write the program to a blank chip and it will work?
And does anyone have a wiring diagram to connect it to the programmer?

Any help would be great! Thanks very much!

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Tools, Atmel Studio (AVR-related)
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jgmdesign
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Posted by jgmdesign: Sun. Jun 16, 2019 - 02:53 AM
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Hello,

Can you post a picture of this device you are looking to copy?

 

Long story short, you can read the part using any AVR compatible programmer(AVRISPMKII, Dragon, AtmelICE, UsbASP).  You can write this file to a blank part, will it work?  Unknown as it all depends if the original part has the lockbits programmed.  If those are programmed, you are pretty much out of luck doing it through programmers.

 

You can google AVR ISP interface, AVR JTAG interface for connections.

 

JIm

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davisornaw
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Posted by davisornaw: Sun. Jun 16, 2019 - 02:59 AM (Reply to #2)
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Thanks for your reply! The device is called the Demon Dual Nand. Here's a pic

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jgmdesign
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Posted by jgmdesign: Sun. Jun 16, 2019 - 03:52 AM
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There are two JTAG headers on the board.  I guess one of them is for the AVR.  YOu will need a Dragon, JtagICE3, or AtmelICE to do anything with that board.

 

I would bet that the Lockbits are programmed to prevent you from making copies of the device, but hey, maybe they forgot on that one..wink

 

JIm

 

Edit:

YOu can buy them here:

https://www.shop01media.com/en/X...

 

 

The devices creator has a list of places where you can buy it:

https://team-xecuter.com/where-t...

 

 

I would rather attempt something great and fail, than attempt nothing and succeed - Fortune Cookie

 

"The critical shortage here is not stuff, but time." - Johan Ekdahl

 

"Step N is required before you can do step N+1!" - ka7ehk

 

"If you want a career with a known path - become an undertaker. Dead people don't sue!" - Kartman

"Why is there a "Highway to Hell" and only a "Stairway to Heaven"? A prediction of the expected traffic load?"  - Lee "theusch"

 

Speak sweetly. It makes your words easier to digest when at a later date you have to eat them ;-)  - Source Unknown

Please Read: Code-of-Conduct

Atmel Studio6.2/AS7, DipTrace, Quartus, MPLAB, RSLogix user

Last Edited: Sun. Jun 16, 2019 - 03:58 AM
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davisornaw
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Posted by davisornaw: Sun. Jun 16, 2019 - 04:13 AM (Reply to #4)
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Yes I know some places where it can be bought but they are not being manufactured anymore so every where that did sell it marked the price up by a lot.
Thanks for your help Tho I will Definitely give it a try :)

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davisornaw
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Posted by davisornaw: Sun. Jun 16, 2019 - 04:15 AM (Reply to #4)
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Btw TX also has a Demon Tool box where you can update the chip and they provide the firmware.bin file for it. I wonder if I could use that and flash it to a new chip?

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