Author Topic: TDS 744A (& friends) firmware reverse engineering  (Read 6143 times)

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Offline charlyd

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  • Country: nl
Re: TDS 744A (& friends) firmware reverse engineering
« Reply #50 on: October 17, 2017, 05:37:50 AM »
Yes that is correct i have a TDS784D and a TDS754D here both have CPU board seems to be 679-4349-00 .
The ACQ board is  679-4771-01.
« Last Edit: November 23, 2017, 09:53:09 AM by charlyd »
 

Offline smartboy123

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Re: TDS 744A (& friends) firmware reverse engineering
« Reply #51 on: October 19, 2017, 12:08:15 PM »
Whoops, looks like i have to update the documentation. But glad to hear that it works for you now and the scope isn't bricked.

Your document is still with typo error, I check just now   :-DD :-DD :-DD :-DD
 

Offline charlyd

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Re: TDS 744A (& friends) firmware reverse engineering
« Reply #52 on: November 11, 2017, 06:47:12 AM »
typo error for what?
 

Offline fenugrec

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  • Country: ca
Re: TDS 744A (& friends) firmware reverse engineering
« Reply #53 on: November 25, 2017, 08:20:28 AM »
Nice to see some action here, even if it's not quite in the direction I was hoping. Does anyone have the combination of the following :

- TDS7xx scope
- dumped firmware (either dumped themselves, or available online like ko4bb's archive)
- internal service port hooked up

Each of these is easy, but I have yet to find a *matching* combination of the correct fw version dump, plus someone with the service port hookup.

[EDIT]
I am now GPIB-enabled, and also I have just found dxl's github repo : )
https://github.com/sschnelle/tekfwtool
« Last Edit: January 03, 2018, 08:33:12 AM by fenugrec »
 

Offline fenugrec

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Re: TDS 744A (& friends) firmware reverse engineering
« Reply #54 on: January 13, 2018, 11:56:08 AM »
Finally, I have dumped my TDS744A v1.1e firmware and NVRAM areas.
For the moment they're in "recent uploads" on KO4BB
http://www.ko4bb.com/getsimple/index.php?id=manuals&dir=07_Recent_Uploads

I had to "backport" dxl's tekfwtool to compile and run on DOS, since the computer with the GPIB-AT card runs freeDOS !
More details on that patch @ https://github.com/sschnelle/tekfwtool/pull/1
 


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