Electronics > Metrology

Prema 6048 teardown

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Rax:
Has anyone reading this successfully implemented xyphro's USBGPIB?
https://github.com/xyphro/UsbGpib

ch_scr:

--- Quote from: Rax on November 07, 2023, 03:34:19 pm ---Has anyone reading this successfully implemented xyphro's USBGPIB?
https://github.com/xyphro/UsbGpib

--- End quote ---
I built a few. They seem to work fine, but no extensive test done.

Rax:

--- Quote from: ch_scr on November 07, 2023, 03:42:06 pm ---I built a few. They seem to work fine, but no extensive test done.

--- End quote ---

Can you describe your major steps in putting one together? I don't mean hardware. From the point it's all buttoned up and ready to be connected to the computer via USB and the instrument via GPIB.

For instance, there's apparently need to "flash the microcontroller," but very cursory directions are provided on Github. I got this: "USB AVR Programmer w/ 6-Pin 10-Pin IDC ISP Connector for USBASP," as I think it allows me to perform this flashing, but I don't know the first thing about if I need it and how to use it.

I tried to simply connect one of those built kits to the computer via USB but it's not seeing it.

If all these things I'm asking have been clearly mapped somewhere, I'll give that another shot, but the Github guide is completely cryptic to me.

Rax:
Obviously, this topic doesn't really belong in this thread, so if you don't mind, we can move it to the one II started specifically for this: https://www.eevblog.com/forum/metrology/prema-6048-gpib-comms-or-maybe-general-thread-on-gpib-readings-harvesting/.

Rax:

--- Quote from: dietert1 on June 11, 2023, 05:56:02 am ---It's a good idea to transfer the P6048 calibration to other standards before applying mods.
Regards, Dieter

--- End quote ---

With this, do you mean saving the constants out of the unit (maybe via GPIB), or "transfer-adjust" other references to save the various reference points of the meter (such as, for instance, adjust a 731B for the "P6048 10.0000000V" etc?)

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