Products > Test Equipment
TH2830 vs TH2832
KungFuJosh:
--- Quote from: Martin72 on June 28, 2023, 05:35:56 pm ---Here it is..
--- End quote ---
Interesting. Ours have different hardware version numbers, but we're both running the same firmware now. So that's cool.
Do you know how to do what @nctnico was asking?
Martin72:
Hi,
--- Quote ---Ours have different hardware version numbers, but we're both running the same firmware now.
--- End quote ---
In these times I am not surprised, due to the ongoing component shortage/obsolescence many manufacturers have to change parts of their installed hardware to be able to deliver, so for example Siglent Scopes.
--- Quote ---Do you know how to do what @nctnico was asking?
--- End quote ---
Only partially, this is an area where I am still learning.
I had bought such a debugger / programmer tool to flash the Uni-T current clamp, also worked.
With this, the readout should also go, provided that the tool recognizes the controller type and supports.
Martin72:
I had a look again on one of your pictures, with a LPC1788 and the EPM570 on board.
From my "halfknowledge" point of view you will have to re-program both to get a TH2832 model.
(Or maybe re-programming the mcu is enough, while the CPLD leave untouched).
and you need a TH2832 owner..
If there´s no read/write protection enabled, reading out the files and comparing them with the files of the 2830 MCU/CPLD.
Or just re-programm it...
Here two links..
https://www.engineersgarage.com/getting-started-with-the-arm-cortex-m3-lpc1768-part-1-21/
It shows you at least what you need to handle these chips.
At work we´re using PLDs and µCs for our control electronics for our inverter/converter.
Maybe the forum member ludee could read out the files from his TH2832, that would help a lot.
nctnico:
First step is to seperate the firmware images into seperate files (shouldn't be hard), load these into a debugger for analysis and look at difference in usage of text. The 2830 firmware doesn't seem to have the wrong firmware message so the spot where that is referenced is the place to start looking. You'd need a fancy debugger that can do analysis like IDA or a free alternative that supports the ARM thumb2 (IIRC) instruction set. Note that debuggers come in two varieties: the ones that are intended to debug known code (like GDB) and the ones that are intended for reverse engineering (like IDA).
It looks like the firmware image has 3 chunks and these are seperated by a header containing a text string 'B9FZI'
Martin72:
What do you think about simply overwriting the contents of the chips with the ones from a 2832 ?
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