Electronics > Repair
TDS3014 adventures
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sicco:
It’s the only DS1742W pin that is not on the 100 pin connector.

But, there is a workaround. The XPC860 has 8 /CS pins, two of those are on the 100 pin connector. It is possible to swap the roles for /CS2 and /CS6. This requires editing the boot rom flash chips.

The BDM 2nd life board that I made plus the bdm.exe pc software lets you do these rom image edits with a few keystrokes. Works on -b, -c and -no suffix models. Software and hardware details on
https://www.eevblog.com/forum/testgear/tds-1000-2000-3000-bw-hack/msg5434106/#msg5434106

Jarek:
Hello
I tried to use BDM.exe program with ft4232H mini module but something is wrong. Any suggestions?
The oscilloscope freezes on the start screen.
Dallas on another TDS3000 works fine.
sicco:
Looks like one or more bdm wires are not going to the right pins. Note there’s a confusing two ways for counting pins:
--- Quote from: sicco on September 10, 2023, 06:41:53 pm --- …the ‘budget version’ plugin board that i designed uses a different numbering convention. That’s because the budget board uses pcb edge connector instead of the https://eu.mouser.com/ProductDetail/TE-Connectivity/1-1734099-0?qs=sGAEpiMZZMvlX3nhDDO4AKFmralhIPMMK7YJ2cTxry4%3D….

--- End quote ---
From what you posted, i cannot see if you use the official 100 pins mating connector, a pcb edge connector, or just flying leads soldered on the tds3000b main board. Share some pictures.
Jarek:
I use a 100pi connector from mouser.
pinout like in the pdf file
Is this correct?
sicco:
That's a bit hard to decipher...
All orange wires on the 100 pin connector end, but many colors on the mini module side...
What is VIO wired to on the mini module? Not to VBUS I hope? That's 5V. It must be 3.3V. Either from the scope or from the mini module.

Suggest you draw a full circuit diagram. Then I can have another look.


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