回應： Help !! Can't find USB-8451 with MAX !!

[Chen-Chi]

All,

        I installed USB-8451 in Win2000 and saw it was installed correctly in Hardware Manager. But I can't find USB-8451 in MAX. Why ? Do I need to check any setting ?

        By the way, does anyone have the experience of controlling USB-8451 with Agilent VEEPro ?

Regards,

Chester

[KostasB]

Hi Chen

Did you install this?

https://www.ni.com/en/support/downloads/drivers/download.ni-845x-driver-software.html

Thanks,

KostasB

National Instruments

[Chen-Chi]

Dear All,

        I am trying to use USB-8451 I2C functions via MAX (Measurement & Automation Explorer) VISA Test Panel. Does anyone of you have such experience ? Please share with me. How can I access USB-8451 I2C functions via MAX (Measurement & Automation Explorer) VISA Test Panel ? Your help is highly apprecaited.

        By the way, I also tried to use compiled function (*.dll) to control USB-8451. I followed the examples to execute I2Cwrite function and I got correct return value (0). Why can't I see any signals coming out from SDA or SCL port using a oscilloscope ? Is there anything wrong ? How to access the USB-8451 I2C functions correctly ? Thank you very much.