Multi core COG memory model C compiler

SteveW719 · 2015-05-12 09:55

I am confused on the COG memory model. I understand it runs from the limited 2K memory of the cog but it seems you select this model for the whole project. What if you wanted cog0 for example to be a supervisory cog that started the other cogs and handled communication with a LCD to display data. Some cogs would want to be very fast and run a small C program completely but Cog0 does need to run from Cog memory. How does that work?

I may not have explained my question very well but I hope some of you can follow.

Thanks

David Betz · 2015-05-12 15:16

I've compiled COG mode programs separately and included them in a larger project written using XMM, LMM, or CMM mode. I either make a binary image from the COG program that I then include as a data array in my main program or I link the COG driver in directly.

Andy Lindsay (Parallax) · 2015-05-12 16:28

I normally compile in CMM mode and then add code that gets run by a cog to the project. There are a couple examples here: http://forums.parallax.com/showthread.php/160301-Mixed-mode-programming-tutorial. Sorry, I still need to add the Propeller Assembly version.

Andy

SteveW719 · 2015-05-13 07:35

Thanks let me take a look at the example.

Steve

Multi core COG memory model C compiler

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