Using PCIe6320 with SPI communication

[gr3g]

Hello,

Quick question. I wonder if it is possible to use a PCIe 6320 in order to use a SPI communication and the SPI digital waveform reference library ?

Thank you for your answers,

[Louis.L]

Hi gr3g,

Sorry for the late reply,

Here the link where you can find an answer: https://forums.ni.com/t5/Components/Deprecated-SPI-Digital-Waveform-Library/td-p/866346

The post of David Staab: 

"You'll only be able to use the SDW waveform with a clocked digital I/O device.  Software-timed I/O devices like the 6509 can't generate or acquire the data deterministically, nor can they toggle lines simultaneously.  Devices that can clock their digital I/O include the M-Series DAQ (62xx) and 653x, 654x, and 655x High-Speed Digital I/O."

Unfortunately the PCIe 6320 doesn't have hardware-timed digital I/O so it can't generate SPI waveforms.

Here some useful link about the SPI communication in case you decide to use a NI hardware-timed digital I/O device:

https://www.ni.com/en/shop/labview/understanding-the-spi-bus-with-ni-labview.html

https://forums.ni.com/t5/Example-Code/SPI-Generation-and-Acquisition-using-HSDIO-Hardware-654x/ta-p/...

https://forums.ni.com/t5/Example-Code/Serial-Protocol-Communication-Reference-Design-for-Digital/ta-...

Best Regards

[John_P1]

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Unfortunately the PCIe 6320 (http://www.ni.com/datasheet/pdf/en/ds-152)  doesn't have hardware-timed digital I/O so it can't generate SPI waveforms.

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The 6320 most certainly has hardware-timed DIO lines (the 8 lines on port 0 can be clocked at up to 1 MHz).

Best Regards,

[gr3g]

Hello,

Thank you very much for your replies. I'm a little bit confused. Does the PCI-e6320 have an internal clock or not ?

How can I check if my clock is up to 1 Mhz ? Do you have an example to give me to try it with my card ?

Thank you for your reply,

Best regards,

[John_P1]

Yes, the 6320 has an internal clock that can be used to generate digital waveforms (up to a 1 MHz update rate).  To verify you can just run a digital output shipping example (e.g. https://forums.ni.com/t5/NI-DAQmx-Examples/Digital-Continuous-Output/td-p/3530496).

You can also refer to the specifications document:

Best Regards,