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Starting Second Core on MPC5676R

Question asked by David Pastl on May 3, 2016
Latest reply on May 4, 2016 by David Pastl



I've been playing around with the MPC5676R for the last couple days. I can get to blinky on the first core without any problem, but the second I try to run the same code on the second core nothing happens.  I'm running the default project that Codewarrior creates when you start a bareboard MPC5676R project, with some added code to blink an LED, which is on GPIO 253.  I'm doing all the same initialization that I was doing on core 0, but core 1 does not seem to want to play ball.


The project adds this to start the second core:


SIU.RSTVEC1.B.RSTVEC = (unsigned long)__start_p1;


Is there anything else I need to do to get the second core going?  The Application Notes don't seem to mention anything else.


Any help is very much appreciated