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Tektronix TDS1000B and TDS2000B series hacks

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Silicium81:

--- Quote from: 66bono on February 25, 2023, 12:39:04 pm ---7f0007 not found is 7f0008

--- End quote ---

the content of 7f0007 is here:

Fieroluke:


Perfect. 13 (circled red) means it‘s a TDS1001B. Change it to 12 to make it a TDS1012B.
00072CC4 is the checksum. If you change 13 to 12 the checksum needs to change to 00072CC3.

But you need to change the filter banks too. It‘s described in reply #94 of this thread.
Change the 20 filter values to 0F and adjust the checksum accordingly! If you don’t, it won’t work!

66bono:
Thanks for explanation.
I looked for addresses to change. The obscured area is the serial number.
13 is the model we change to 12.
Filters are 2x 10 (04) I change to 2x 10 (0F)
  I can't handle the checksum either.

Fieroluke:
Ok, bear with me…

You change the model ID from 13 to 12:          -1
You change 04 to 0F, 20 times:                        20 x $0B = $DC

Total change:                                                  $DB

So new checksum should be (try at your own risk): $00072CC4 + $DB

=> new checksum should be hex 00 07 2D 9F

66bono:
I changed
I have a copy of the original, if something goes wrong, I can restore the original file.
Will there be a brick:)

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