Background: I'm very well versed in Max, but still a newbie in Pd.

I'm working on a project to that will use Pd running on a Raspberry Pi, and that will generate control voltages using external DACs (ideally something like a MCP4922 or similar, http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en020399 ).

I know about Miller Puckette's gpio external, found here: http://crca.ucsd.edu/~msp/syllabi/206.13w/index.htm , but it does not do any SPI interfacing, which is the way that I will need to interface with the DACs. I also don't think that the comport object does any SPI interfacing either.

Right now it looks like my only option is to write an external program in C or Python or something, and invoke it with shell commands from Pd. But since I suck at C/Python/etc, I was hoping that there might be a way to do this all directly within Pd?

Thanks in advance,
Dan

Hi valkiri - unfortunately no, I paused work on this project because I hit the wall above. Would be very interested if you have success!