Electronics > Repair
HP 3478A: How to read/write cal SRAM
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coromonadalix:
wow great work, since im totally noob in programming, is there an updated GPIO6.1.ino ??? available to download,

I have to reinstall my win 10  i dont have any compilers / ide ... at the moment

thks
Miti:

--- Quote from: fenugrec on November 15, 2018, 03:43:07 am ---
That won't be necessary ! Just finished figuring out the gain constants, with the help of partial MAME emulation.
.
.
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And, that's pretty much all there is to it.

--- End quote ---

Bravo  :clap:
Amazing work Fenugrec!
Now we need an application where you say "I want to read 10 digits more on 3V DC" and it reads the constant, calculates, modifies and writes it back.

Pigrew,

Can you code something?
coromonadalix:

--- Quote from: Miti on November 16, 2018, 02:49:57 am ---
--- Quote from: fenugrec on November 15, 2018, 03:43:07 am ---
That won't be necessary ! Just finished figuring out the gain constants, with the help of partial MAME emulation.
.
.
.
And, that's pretty much all there is to it.

--- End quote ---

Bravo  :clap:
Amazing work Fenugrec!
Now we need an application where you say "I want to read 10 digits more on 3V DC" and it reads the constant, calculates, modifies and writes it back.

Pigrew,

Can you code something?

--- End quote ---

What do you mean by :  "I want to read 10 digits more on 3V DC"    you want a 10 digits resolution ???
Miti:

--- Quote from: coromonadalix on November 18, 2018, 04:30:27 pm ---
What do you mean by :  "I want to read 10 digits more on 3V DC"    you want a 10 digits resolution ???

--- End quote ---

What I mean is that, compared with a calibrated instrument, my instrument reads less by 10 digits. Calibrate reads 3.00000V, mine reads 2.99990V, so I need to alter the calibration constants to bring it in line with the calibrated one. Preferably you do a full calibration but it is not always easy for a hobbyist. Another application would be to bring an instrument to a reasonable calibration state, after loosing the calibration constants due to a dead battery.
coromonadalix:
ahhhhhhhh ok  thks for the clarification
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