I am working with a dual core H7 for the first time and and very confused about how to share data between the two cores. I would like to use the M4 as a slave/background processor for the M7 where the M7 can alert the M4 when there is new data to process and then the M4 signals back when finished.
I can see how to use a semaphore to signal back and forth to synchronize the reading and writing - that part is fairly clear, but what is the best way to declare & use two common buffers? I tried adding the resource manager to both cores in MX-Cube, but it is incomplete and tries to include header files to doesn't exist anywhere in the repository and I couldn't find any useful documentation about the resource manager on the web.
I tried doing something simple and created shared.c & shared.h in the Common directory that contain just the variable declaration for the buffers and then added #include "shared.h" to both main.c, similar to how global variables can be shared between .c files in a single project.. The code compiles and the compiler or linker don't complain when I alter one the variables declared in shared.c in either main.c. Does that mean it might work? If so, then all I'll need to do is add is the semaphore interrupts for both cores.
