Generating 2 clocks with different phase using PXIe-6674T ??

[Mystogan]

Hi,

is it possible to generate 2 clocks (same frequency) with different phase using PXIe-6674T ?

regards,

Yan.

[reschri]

Hello Yan,

no, this seems not possible. The module is for clock sychronization and generation.

There is an example for doing something alike with counters (you will need another device for that though)

http://zone.ni.com/devzone/cda/epd/p/id/3448

Perhaps you can have a look at that.

Regards,

René

[Mystogan]

Hi René,

thanks for the confirmation. I have PXI-6733. You think I can use it? I can find an example of generating 1 continuous counter. But I need to generate 2 clocks with 10MHz rate. I see the device has 2 counters with max. 20MHz. Do you know any example I can use?

regards,

Yan.

[reschri]

Hi Yan!

Sorry for the delayed answer:

Perhaps you can adapt this example:

http://zone.ni.com/devzone/cda/epd/p/id/5793

Regards

René

[Mystogan]

hi,

somehow i cant use the daqmx digital counter to generate nice 10MHz pulse train with my pxi 6733.

The option now I can use my timing module pxie 6674T to have base clock 40MHz, and then using divisor 1 and 2  I can generate 2 synchronized clock in PFI0 and PFI1.

Then I use function connect terminal to connect Oscillator and PXI_Clock_10 to get my pxi chassis synchronized with my timing module.

Then I use pxi clock as reference to generate my digital signal with pxie 6544.

Somehow, my generated signals; clock from timing module, pxi clock from backplane and digital signal from pxie 6544 are not synchronized. The phase difference keeps changing.

I dont see any Init.vi while working with pxie 6674T. I'm assuming I can simply connecting clocks and triggers through RTSI bus, then generate my digital signal with 6544.

I need help to have 10Mhz from 6674T and another 10Mhz from 6544 with 1/4 phase difference between them, which should be stable all the time.

[reschri]

Hi!

Can´t you create a 20 MHz Signal commig over the backplane triggering two digital waveforms? Make one listening to rising, one to falling edges. This should start the output with a 1/4 Period delay for the 10 MHz signal,

Regards

René