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Help. Agilent U1252B eeprom dump
hlj.pycad:
I've messed up with my U1252B completely when I try to fix the resistor read a dozen of Mega when probe was opened. And I want to try copy the calibration data from another U1252, but I don't know which IC is, any hints about that ?
Is it this one? s93c86, it's an eeprom, the cap block the clutch readout without soldering, so i want to confirm before any soldering.
It's a s93c86 8KB eeprom, and can read out without anything breaking by a clutch and CH341 programmer, if you've never dumped it, you should before do any calibration...
U1252B and U1253B will do, it's almost the same version but U1253B has a nice OLED screen.
hlj.pycad:
I grided out the clutch a bit, then I can set it up, does this eeprom dump contains calibration data?
hlj.pycad:
Now I am pretty sure that eeprom ic store the calibration data, I dump it then do another calibration for the Voltage of "short" and "3V", the calibration count was 56, which is "0x38", and there is a 0x38, it became 0x39 (57) after another calibration, and some bits changed as well, I reckon those are calibration data. ;D
Because the other u1252 is U1252A instead of U1252B, it would be very nice if anyone can dump me a U1252B eeprom data...
gamalot:
This is from my U1235B, good luck. :-+
hlj.pycad:
thank you. Unfortunately, the 1253B is different arrange from 1252B... And I tried my U1252A as well, can't use directly... upload it any way in case anyone want it someday..
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