I have this VI which calculates CRC for SPI communication. Someone provided a formula node to calculate CRC. The system has been upgrade so now the formula node is my choke point. I need to convert this to a VI so it will run faster. Can anyone help with this? I have tried a few different things but none of them give me the correct answer.

Here. There are probably some optimizations available, but here's both a literal translation of the logic and a slight tweak to give you a starting point to explore benchmarking with different bit-manipulation functions. -Kevin P

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I did impliment the lookup table and it works great. Thanks again for all fo the help everyone.

Tim
GHSP

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Need help with this VI

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