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Tektronix TDS1000B and TDS2000B series hacks

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vishaldotgupta:
hi

as per python scirpt, there are two different ID for TDS 2022B

0x0D and 0x10

what is the difference between two?

vishaldotgupta:
i noticed Firmware version is 22.01 .

could that be the reason for the hack not working

BG9ICN:
Try to flash back the read-out version.
And check what did you changed. If you change another block, system doesn't startup.
Two TDS2022, one is 1GSa/s, the other is 2GSa/s.

vishaldotgupta:
i flashed back the original FW and re soldered.  its still not booting.

there is activity on data bus for few seconds and then it gives up.   further the probe compensation signal is at 5 Khz.

it seems either the flash is faulty or it was not properly read during the first instance.  Though, before saving the original ROM, i ready it for 3 to 4 times.  Every time check sum was same.

Also noticed that when i remove the flash from board and try to compare it with image ( i copied into) there is a small variation in the check sum between flash contents and image file.  it seems that some content changed either by scope or due to faulty flash.

had checked with another working unit.  There is no signal if flash is missing.  soon after power up, it is at 5Khz, then as it boots up, it changes on to finally at 1Khz.  as per service manual 1 Khz means booting is okay.

now need to get a confirmed working flash from another scope to troubleshoot further.

Fieroluke:
You could get the bin file from http://www.ko4bb.com/ (search TDS1001C) and see if that works?
Sounds like your flash is damaged or the initial readout failed? Using the file from KO4BB might help…

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