Dear NXP community
At present, MPC5748G is used for dual-core development, in which the core of Z4_0 is used for ENET development, and FreeRTOS is used. The core of Z4_1 is not used for now, and it may be used for USB development in the future.
Now, the ENET1 project file used normally in the single-core project is transplanted to the Z4_0 core of the dual-core project. When scheduling FreeRTOS, it does not enter the first task normally. Why is this?
Also, if you enter an interrupt like IVOR1_Handler, is there a way to lock down why you entered it?
Thank you very much for your help in solving this problem
H-chips
These three screenshots are the result of three single steps.
Thanks for your help, I found that the problem appears in the address setting of different cores wrong, and there are some problems in the stack size setting.
Regards,
H-chips
Hi @H-chips
it looks like wrong address is used here:
If you step the code in asm and if you check the core registers, you should see which address is used.
It is also possible to check the core registers related to IVOR1 when the exception is triggered after this access:
This can be found in section "5.7.2 Machine Check Interrupt (IVOR1)" in:
https://www.nxp.com/webapp/Download?colCode=E200Z4RM
Regards,
Lukas
Hi, did you check if the version of FreeRTOS you use supports symmetric multiprocessing (SMP)?
Symmetric Multiprocessing (SMP) with FreeRTOS - FreeRTOS™
There exist also quite good ports for other CPU and older FreeRTOS which you can use as draft, I know at least one for a dual-core from a different chip manufacturer.
Best regards, Rainer