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CC2640 NPI FCS Format

Other Parts Discussed in Thread: CC2640

Hi All,

I am using the CC2640 and adding an SPI driver to a base project using the steps that can found on the TI wiki page.

In the NPI documentation provided it refers to a Field Check Sum (1 byte) that is handled by the NPI layers. Is there a way to find how this is calculated or programmed so that I can mimic it in a third party master device that I will be communicating with via SPI?

Does anybody know how the checksum is calculated by the provided NPI module?

Thanks.