US event timing with DaqMX help

Question

Greetings.  My Labview experience has been largely cFP and cRIO so my DaqMX experience is limited.  I have a program for my PCIe-6353 that will operate like this:
DO1 high
wait a period as low as 700 uS
DO2 and DO 3 high
wait 700 uS
DO3 low DO4 high
Take analog voltage data at 40 kHz
DO2 low
DO1 low
This is all quite simple but I am not sure what architecture to use for the timing.  Any ideas or examples would be helpful and greatly appreciated.  I have been playing with using multiple timed sequences with different offsets but not sure if this is the best way.  I'm spoiled with the FPGA pallette where I can just drop a uS delay and move on.
Thank you for any input you may have.
Dave B 
www.signalg.com

Answer 1

Hi Dave,
      I think that you would have better luck on the Multifunction DAQ forum.  But to address your issue, there are a couple ways to do that.  First, you could do a Digital Output using a 10kHz clock on your 4 lines.  For this, you could use an example like "Write Dig Chan-Int Clk-Dig Start.vi" found in the NI Example Finder under Hardware Input/Output»DAQmx»Digital Generation.  That example would need to be modified to include the waveform that you've built (either from a waveform constant, or from the Digial Waveform Editor).  
Is this generally what your timing diagram would look like?:
Your other option would be to use 4 counters.  Hopefully that gets you started- let me know what you're interested in pursuing.  But again, I would recommend migrating this post to the DAQ forum.  Have a good one!
aNItaB
Applications Engineer
National Instruments
Digital Multimeters