Products > Test Equipment

Need Tektronix TDS220 firmware file

<< < (3/8) > >>

chronos42:
I did it with a TDS220. I replaced the RAM with a 70nS 128k X 8 Renesas RAM and programmed the MM Firmware in a 27C040 from Atmel.

It worked without any problems and makes this 21 years old scope attractive again.

BTW:
Without changing the RAM the TDS hangs in a bootloop with the MM firmware.

@OH2LIY: maybe something is wrong with your RAM.

OH2LIY:
SRAM is probably ok, because TDS2CM (plain I/O software) runs on it (also using 29F040). If SRAM size is only difference between CM vs. MM software, I'll probably change it again to some different model...


Ramppa, OH2LIY

JacquesBBB:

--- Quote from: chronos42 on January 05, 2018, 12:01:45 pm ---I did it with a TDS220. I replaced the RAM with a 70nS 128k X 8 Renesas RAM and programmed the MM Firmware in a 27C040 from Atmel.

It worked without any problems and makes this 21 years old scope attractive again.

--- End quote ---

Interesting.  What are the additional features with this change ?

As I have not looked precisely to the board, I dont understand precisely the changes to be made.
As you say, two chips need to be changed. Do you know their numbers on the board ?
What are the original values of these chips ?

Thanks

Nprod:

--- Quote from: JacquesBBB on January 06, 2018, 12:23:07 pm ---Interesting.  What are the additional features with this change ?

--- End quote ---

You get an FFT option, that's the only difference compared to the TDS2CM. It's a nice upgrade because actual TDS2MM modules are hard to find and still very expensive.

chronos42:
You also get risetime and falltime measurment.

And for me it was lot of fun to finally get these options for this old scope.

I saved my TDS 220 from the junk, brought it back to life and I like it.
I cannot explain why, but I really like this litte scope. I have much better scopes in my lab, but for repair jobs I mostly use the TDS 220.

Navigation

[0] Message Index

[#] Next page

[*] Previous page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod