Beaglebone as a USBTMC Device

[Matt Bradley]

Hello,

Does anyone know how to make the Beaglebone Black into a USBTMC device?  

Please note: I am not trying to control USB devices (like multimeters and oscilloscopes) with the Beaglebone.  I am trying to make a new instrument and will use the Beaglebone as the brains of the instrument.

I know it can be done, but I do not have any idea how to do it.  Thanks!

-Matt Bradley

[Graham]

Matt:

Although I have never done what you are asking about, I note that there is an available USBTMC driver for Pythonf.

Python is a reasonable choice for test equipment control and scripting.

You might want to Google "Python USBTMC."

Both Python 2 and Python 3 are readily available for the BBB.

--- Graham

==

[Adrian Godwin]

If I understand Matt correctly, he doesn't want what Python USBTMC does. I believe that's a Python application (which might run on a BB) that accesses instruments having USBTMC interfaces.

Matt wants to make the Beaglebone one of those instruments. He therefore needs to have the BB offer a USBTMC device on its device port.

I don't know if such a driver already exists or what would be required to create one but I would start here :

http://wh1t3s.com/2009/05/11/beagleboard-as-usb-mass-storage-device-via-usb-otg/

This explains how to build the kernel with alternate device interfaces such as MIDI.

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[Graham]

Adrian:

You are correct, I misread his request.

--- Graham

==

[Matt Bradley]

Adrian is correct. Python USBTMC allows me to control USBTMC devices,
it does not make the Beaglebone into a USBTMC device. I will check out
the link you sent me and see if it helps. If anyone has experience
doing this, please let me know. Thanks.

-Matt

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