I did try to find if and how it is possible to use the Serial Peripheral Interface (SPI) of the Raspberry Pi with Mathematica. I could find nothing so far so my conclusion now is: it is not possible. I wonder if this is true especially as MMA is shiped with the PI and has many specialiced PI functions and in addition is a versatile programming tool. Can someone comment on this please?
An extended comment rather than an answer at this point, subject to additional information from the OP.
Yes, you can interact with chips that use SPI communication through Mathematica, but as of yet, there are no turnkey solutions. Ideally, something along the lines of
FindDevices["SPI"] would yield some type of useful connection, but I think the field (physical computing on the Raspberry Pi with Mathematica) is still a bit premature.
As mentioned in the comments, my wiringPiLink gives you a good example of the steps needed to communicate with an SPI chip. It involves the following steps:
- Writing c code that allows for communication with the kernel
- Create a package that creates Wolfram Language functions that call the relevant c functions.
In my experience, proof-of-concept programs can be created by referring to the example programs for the c-code device drivers (in the referenced case, WiringPi and the Wolfram tutorials for communicating with external programs.
Should you be willing to provide additional information about the project in mind (I presume it is not general SPI communication but a specific chip with which you wish to interact), please provide that information in your question and a more comprehensive answer may be possible.