How can MCU communicate to GPIB-USB-HS ?

[mike199]

HI NI,

I am working with TM4C1294xl evaluation board http://www.ti.com/tool/EK-TM4C1294XL, trying to communicate the test equipments with GPIB interface. I can't use any OS for this project due to the timing constrain. The simple way to talk to the device is through NI GPIB-USB-HS cable.

TM4C1294xl is programed with tivaware (bare-metal SDK package from manufacturer). Right now I have configured the usb port as Host CDC, and able to send / receive data from usb serial device through usb Bulk in/out pipes respectively.

I am wondering whether this solution is feasible and how TM4C1294xl can communicate to GPIB-USB-HS via its USB port as generic bulk or any other type of device?

Please advise, thanks in advance

Mike

[njacacia]

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@mike199 wrote:

I am wondering whether this solution is feasible and how TM4C1294xl can communicate to GPIB-USB-HS via its USB port as generic bulk or any other type of device?

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You can't.

[mike199]

Hi njacacia,

Thanks for your fast reply. If GPIB-USB-HS doesn't work for me, is there any other alternative solution you might think of? I just want to use ARM based MCU to talk to GPIB device without OS(Kernel).

Best

Mike

[njacacia]

Perhaps you could write your own driver.

I have no idea.

[mike199]

That's exactly what I plan to do. But I need some kind of reference document/manual for GPIB-USB-HS about the communication protocol. I would really appreciate if you or any colleague in NI could provide any kind of help.

[njacacia]

The manual for the GPIB-USB-HS is on ni.com

You'll have to talk to NI if you want something else.

[mike199]

The online manuals related to GPIB-USB-HS is just OS oriented installation guide with driver provided by NI. I can't find much useful info about the communication protocol between OS and GPIB-USB-HS.

Do you know exactly which department or NI expert I should talk to in order to acquire the info I need to write my own driver for MCU?

Thanks in advance

[njacacia]

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@mike199 wrote:

The online manuals related to GPIB-USB-HS is just OS oriented installation guide with driver provided by NI. I can't find much useful info about the communication protocol between OS and GPIB-USB-HS.

Do you know exactly which department or NI expert I should talk to in order to acquire the info I need to write my own driver for MCU?

Thanks in advance

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No idea. I have never wanted or needed to do what you want to do.

[mike199]

In windows OS, did anyone try to use generic bulk driver with correct PID/VID from NI to talk to GPIB-USB-HS?

[njacacia]

You do realize that the GPIB-US-HS is not an instrument, right?  It allows one to "talk" to an instrument.