Electronics > Metrology

Raspberry Pi2/3 logging platform for Voltnuts

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nitromethane:
I was already considering writing my own GPIB bitbang library in python until I got the thing working, which considering this is my first time doing anything GPIB or computer controlled measuring equipment in general would be a big project to say the least.

Now I'm almost afraid to ask, but why is linux-gpib a pain?
Aside from needing recompiling every time the kernel gets updated the linux-gpib GPIO driver seems to work fine, if the interface circuit is correctly implemented.

guenthert:

--- Quote from: e61_phil on November 19, 2021, 06:56:54 am ---[..]
Why not writing an own userlevel "driver"? Linux-GPIB is really a pain and in your case it would be simple to avoid it.

--- End quote ---
     ???  Seems to compile and install still (even though it's old) just fine.  Where's the pain?
And there's some value in partly reusing already tested code instead of inventing the wheel once again and not quite round.

perdrix:
Will this do the drift measurement for a 3458A as per service note 18A?

How do I connect it to GPIB bus?  I have NI USB-GPIB-HS/HS+ adapters

Thanks
David

nitromethane:
I finally got my GPIB interface circuit for Raspberry Pi properly working and open sourced the design.
forum topic: https://www.eevblog.com/forum/projects/graspib-gpib-interface-for-raspberry-pi/

MiDi:
Updated the guide for linux-gpib 4.3.4.

Alternatives to this guide:
https://xdevs.com/doc/xDevs.com/linux_gpib/install_linux_gpib.sh from https://xdevs.com/guide/ni_gpib_rpi/
or https://github.com/PhilippCo/meas_rpi from https://www.eevblog.com/forum/metrology/raspberry-pi-for-gpib-and-data-analysis-very-easy-and-fully-equipped/msg3624833/#msg3624833

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