Products > Test Equipment

TH2830 vs TH2832

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KungFuJosh:
Can somebody else with a 2830 and somebody with a 2832 check what hardware version shows on the firmware upgrade screen? I'm just curious.

Thanks,
Josh

Martin72:
ST2830 ?
No problem, tomorrow...

nctnico:
Firmware looks like some kind of archive. The first 24 bytes are some kind of header which may contain a length. After that, there is a typical Cortex Mx firmware image with the first 4 bytes containing the stack pointer (in the LPC1788's SRAM) and the reset vector. So if you load this into a debugger which can find how texts are referenced, it should be easy to find out how the model type is being determined. Flash / code read protection seems to be disabled (not used) so you should be able to attached a debugger to the JTAG pins and read the memory content & step through the code.

KungFuJosh:
Anybody with tools and skills to do that? I might have a debugger, but I've never tried that before (I've only used it for programming).


One thing to note (useful or not, I dunno) is that the meter accepts whatever ID you want, but that doesn't make the firmware work.

For example, I flashed TH2830 model to ST2830 firmware (rename ST2830.ext to TH2830.ext), now I have to use an ST2830 filename to change to anything else. ST2830 firmware works fine. If I rename ST2832.ext to ST2830.ext, that will flash but give the "Wrong Firmware!" warning. To flash it to something else, the new firmware file has to be named ST2832.ext.

Note: ext = .sec

Martin72:

--- Quote from: Martin72 on June 27, 2023, 08:26:48 pm ---ST2830 ?
No problem, tomorrow...

--- End quote ---

Here it is..

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