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redapple_1982
Visitor II
November 21, 2005
Question

IRQ

  • November 21, 2005
  • 2 replies
  • 731 views
Posted on November 21, 2005 at 22:32

IRQ

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    2 replies

    R
    redapple_1982Author
    Visitor II
    November 21, 2005
    Posted on November 21, 2005 at 04:44

    I've used the example codes downloaded from ST website, and found an odd thing.I set a breakpoint at 'LDR PC, IRQ_Addr' in exception vectors, but it didn't stop when an IRQ interrupt occured(I set a breakpoint at IRQHandler, and it surely stopped).It really doesn't make sense that the ARM core executes the codes in IRQHandler without going through 'LDR PC, IRQ_Addr'.

    Please help,thanks.

    R
    redapple_1982Author
    Visitor II
    November 21, 2005
    Posted on November 21, 2005 at 22:32

    I used the USB example.

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