Products > Test Equipment
TH2830 vs TH2832
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KungFuJosh:

--- Quote from: tv84 on July 02, 2023, 05:10:03 pm ---The patch doesn't go there near. Maybe the info is stored as ST2830 (Ax) and when the software tries to retrieve it as ST2832, it fails.

--- End quote ---

Did the patch only modify the header, or were there multiple instances that you needed to change? I can't think of a reason why the version number would need to be referenced for stored data.
KungFuJosh:
This is an older thread, but it has an eeprom dump (reply 12) from one of tonghui's handheld meters: https://www.eevblog.com/forum/testgear/tonghui-th2822-lcr-meter-review-teardown-and-possible-hacking/

I don't know if that helps us or not, maybe it will show something useful.
Martin72:
Depending on the size you won´t have to desolder the eeprom, with luck.
I used a SOIC-8 clip for reading out/programming the eeprom of my uni-t current clamp.

https://www.adafruit.com/product/5315
KungFuJosh:

--- Quote from: Martin72 on July 02, 2023, 08:57:30 pm ---Depending on the size you won´t have to desolder the eeprom, with luck.
I used a SOIC-8 clip for reading out/programming the eeprom of my uni-t current clamp.

https://www.adafruit.com/product/5315

--- End quote ---

I don't have any intent to desolder anything on this. I have a sneaking suspicion it will wind up being easier than expected. We'll see though. Hopefully Rudi is able to dump enough data.
luudee:

--- Quote from: KungFuJosh on July 03, 2023, 02:33:34 pm ---
I don't have any intent to desolder anything on this. I have a sneaking suspicion it will wind up being easier than expected. We'll see though. Hopefully Rudi is able to dump enough data.

--- End quote ---


I have dumps of the I2C EEPROMS (the B85RC64TA, and the AT24C512)

I did not dump the two Adesto 45DB321E SPI Flashes because TV84 told me he did not need those anymore ...

Now my unit is back in my rack, which is a huge pia to pull out ... it's not trivial ....

I will dump the Adesto FLASH's if that is absolutely necessary.

The question really is: Who will decode the Adesto dumps ?

BTW: There is no need to de-solder the FLASH chips if you know what you are doing ;-)


Cheers,
luudee

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