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TMS320F28066: Timer0 interrupt cannot be shield

Yale Li 李耀先
Expert 4660 points
Part Number: TMS320F28066

Hi Team,

1. My customer used DINT in the function for global interrupt mask. But why can't the Timer0 interrupt be shielded?

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#define DINT __asm(" setc INTM")
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

2. When the function pointer is used to jump in the code, the code does not jump normally, but enters an illegal interrupt:

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#define APP_ENTRY_ADDR 0x3D8000
DINT;
IER = 0x0000;
IFR = 0x0000;
((void (*)(void))(APP_ENTRY_ADDR))();
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

--

Thanks & Regards

Yale

  • +1
    TI__Guru* 95315 points

    Yale,

           Sorry, I don't understand your question. Are you saying even when the interrupts were disabled at the core level y setting INTM = 1, Timer 0 interrupt was successfully asserted? This cannot happen. Did you check the value of INTM bit via CCS?

    Yale Li 李耀先 said:
    2. When the function pointer is used to jump in the code, the code does not jump normally, but enters an illegal interrupt:

    There is very little information in your post to understand what might be going on.