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SCLK / SPI_CLK as DIO / GPIO on cRIO

SCLK / SPI_CLK as DIO / GPIO on cRIO

‎04-16-2021 04:18 AM

Hello everyone,

we want to build a custom module and were wondering whether it is possible to use the SCLK/SPI_CLK pin (#11 on cRIO connector) on the cRIO connector as a DIO/GPIO.
Is this pin shared by all modules or per cRIO module?
If i interpret the documentation right, the SCLK pin is driven high when entering normal operation mode. Is it afterwards possible to drive this pin to a constant 0 or 1 from within labview?

Sincerely
Mark French

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Re: SCLK / SPI_CLK as DIO / GPIO on cRIO

‎04-23-2021 04:34 AM

I believe it is possible. However, as per the documentation it is not recommended. 

https://www.ni.com/pdf/manuals/375951b.pdf page 41.

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