multiple tasks running same board

[stonema2]

I have two different pieces of hardware which I need to control independently of one another, using DAQmxWriteAnalogF64(, and software control is not an option. It would be very difficult to set them up in the same task. I was wondering if there were anyway to control the two pieces of hardware separately, using two different tasks. For example, is there a way to configure one task using the sample clock, and one with a different counter/timer? I just need to be able to stop and start them independently of one another, but could theoretically use any clock on the card.

USB 6343. My program is written in Visual Studio C++

[rolfk]

If you need hardware timed analog output the only option would be to use two seperate DAQ devices to do that. There is only one timing circuit for analog output on a DAQ device and while that can control any or all of the DAC channels on the device to work simultaneously it can not split itself in two to control two DAC channels independently.

The other option is to use a software approach where you have a thread controlling the multichannel Analog Output and then send it updates for the different channels through a queue or some similar messaging mechanisme.