Portenta H7 dual core shared memory

doncalsone · March 1, 2022, 3:28pm

I'm not sure if this helps, but it is possible to pass data between the cores using RPC. See the example in the link below:

github.com

hpssjellis/my-examples-for-the-arduino-portentaH7/blob/master/my02c-dual-core-RPC-variable.ino

/*
 * my02-Dual-Core for the Portenta H7
 *
 * This code can be loaded on either core.
 * The M7 core will initialize the M4 core
 * The M7 will flash Blue randomly (under 6 seconds)
 * The M7 core will serial print its own messges
 * The M7 core will serial print messages it receives from the M4 core
 * The M7 core will continuously print the "myIntGlobal" variable
 * 
 * The M4 will flash Green randomly (under 6 seconds)
 * The M4 will randomly set the M7 variable "myIntGlobal"
 *
 * Note: The M4 core will not compile unless -fexceptions is added 
 * to the bottom of the files: 
 * cflags.txt
 * cxxflags.txt 
 * at
 * C:\Users\<USER>\AppData\Local\Arduino15\packages\arduino-beta\hardware\mbed\1.2.2\variants\PORTENTA_H7_M4
 *

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Portenta H7 dual core shared memory

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