Thank you for your reply. I tried the example "continuous generation of analog voltage" with 1000Hz update rate, I cannot see the signal on the scope. I also use MAX test panel to generate analog output with 1000Hz update rate, I will get the buffer underflow error within a few seconds. It will be fine if the rate is 500Hz.
I think this might be the hardware limitation because there is no on-board memory and DMA function on the DAQCard. Regards, Wei Lin
