Can I controll a serial Mux with a USB-6225 device?

[Okeih81]

Hello,

I'm using a USB-6225 device for data aquisition. Moreover I would like use the device to control a 32 to 1 Mux.

One possibility is to control the MUX with 8 parallel digital channels, which of course works with the USB device.

However I don't want to have so many channels. I figured, that there is another 32 to 1 Mux (ADG725) which can be controlled

serially. Thus only three controll channels are left(SCLK,DIN,SYNC). They suggest e.g to use SPI or QSPI bus to control it. But as far as I know

the USB device does not have a bus like this.

However is there a reasonable way to control it with the USB-6225? Or should I prefer the parallel way to control the Mux?

Thanks for your help!!!

Heiko

[Arvont]

Writing to a SPI bus with a generic DIO device is pretty common.  However,  one must write or otherwise obtain a driver to generate the clock signal and data signals.

Test & Measurement World talks about this practice in their Test Ideas column this month (April 2010).

http://www.tmworld.com/article/453926-Test_Ideas_Program_the_SPI_bus_with_a_DIO_module.php

[Okeih81]

Thanks for the information! I'm gonna try it.

Heiko