Generate pulse train with out counters

[voh720]

Hi,

Iam using the PCI6023E DAQ in labview 7.0.  I need to generate a continuous 1usec 5KHz pulse train and I've used up both my counters/timers.  Can someone sugests how to generate a pulse train without using timers?  I/O perhaps?

Thanks in advance

hv 

[Dennis_Knutson]

Unless you free up one of the counters, it can't be done. The digital outputs are software timed and you'll be lucky to get msec resolution and likely sub KHz frequency. You don't have any analog outputs that could be used.

[voh720]

Yes, I have analog outputs left.  Can analog achieve the kind of resolution i mentioned?

Thanks

[Kyle_A.]

Hi,

You can create a custom pulse train using your AO channel.  This can be easily manipulated to create the pulse train you are looking for, and you don't really have to be concerned about the custom part about it.  The task is hardware timed so you will be able to achieve 5kHz frequency on your pulse train. Let me know if this works for you, thank you!

[Dennis_Knutson · Accepted solution]

---

voh720 wrote:

Yes, I have analog outputs left.  Can analog achieve the kind of resolution i mentioned?

Thanks

---

According to the specs, the 6023 does not have any analog outpts. Pretty hard to use what you don't have.

[voh720]

Dennis,

You're right, I will have to upgrade to something with analog outputs or more with more counters.

Best Regards

hv