I recently bought a used USB-8451 to try some Labview SPI/I2C development. I found that when I create a simple Write VI and look at the signals on a PC based logic analyzer I see that the SCLK and MOSI lines are reversed. I verified that I have the correct connections going to the analyzer and confirmed the pins are correct in the 8451 user manual. Has anyone else found this? I have attached screen captures of my VI and Logic Analyzer. I tried the 8451 examples and the result is the same, the SCLK appears on the MOSI line. I don't think this would be a real big issue for what I want to do, but I find it strange. Am I missing something?
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