Configurable Logic Block

BISS-C Interface for PIC16F13145

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BISS-C Interface for PIC16F13145

Configurable Logic Block

BISS-C Interface for PIC16F13145

July 22, 2025 by Daniel Fernandes

The idea of this project is to use the CLBs from PIC16F13145 to do a partial decode of a BISS-C device (a rotational encoder, in my test) and forward only the relevant bits to SPI. I´m a CCS compiler user and CLBs are very new peripherals so i´ll take some time to get used to MPLAB-X .

Project

I bought this encoder (Option BISS 10 bit):

https://www.aliexpress.com/item/1005008627136008.html

It came with a concise but very straightforward manual. BISS documentation is open and can be found at:

https://biss-interface.com/c/downloads/

There are lots of good information about it that can be easily found with google. My plan is to generate the clock with a timer, configure SPI as slave and try to capture data only when it´s valid.

Author

Daniel Fernandes

@dmendesf

License

MIT License (MIT)

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