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12:53 pm
August 1, 2016
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Hello, I am trying to communicate with an AD board via SPI but I am having a problem with the SPI Transfer vi. I set the CS pin to 8 but pin 8 does not do anything when I call the vi. I got around this by manually pulsing the CS pin before calling the SPI Transfer vi. Has anyone else had this problem?
5:40 pm
March 12, 2015
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What type of board are you using? If it is the Due, there are only certain allowable CS pins and 8 is not one of them. The only pins allowed on the Due are 4, 10, 52, and 54. Otherwise, for standard Arduino boards this API just configures it as a digital I/O as you are doing manually, so you should not have to do this and pin 8 should work. Take a look at the included SPI example and the help for SPI Open Express.vi which explains how the CS works.
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