Not able to understand the TWI and SPI Instance problem.

RE: Not able to understand the TWI and SPI Instance problem.

Rajat — Fri, 17 Aug 2018 06:30:41 GMT

Thanks mrono!

I tried that out and it worked. I disabled other SPI Instances and also TWI Instances and changed the TWI Instance from 0 to 1 and kept the SPI Instance as 0.

If someone else faces this issue. Go to SDK_CONFIG.h file and disable all other instances except which you are using and SPI instance and TWI Instance should not be same.

Thanks

Rajat!

RE: Not able to understand the TWI and SPI Instance problem.

mrono — Fri, 17 Aug 2018 06:14:47 GMT

Just change TWI0 to TWI1 or SPI0 to SPI1 and you should be fine.

Pin configuration doesn't need to be changed, but you of course need to configure the new instance instead of the old. If you're using Nordic libraries I believe this is handled by the libraries.

The relevant section in the product specification is called "Peripheral interface". That describes what instances share resources.