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2 important questions to notify while debuging the GIC interrupt program Once your interrupt generated, you should clear the flag bit . Otherwise, the next interrupt would be ignored . you should ... 阅读全文
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Scu gic in depth – 1Scu unit is a powerful unit to deal with the coherence of L2 and memory ,and contains a general interrupt controller pl390 : It deal with the following several kinds of interrupt:P... 阅读全文
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Exception in depthThe cortex a9 have 7 kinds of exception as follows:XIL_EXCEPTION_ID_RESETXIL_EXCEPTON_ID_UNDEFINED_INTXIL_EXCEPTION_ID_SWI_INTXIL_EXCEPTION_ID_PREFETCH_ABORT_INTXIL_EXCEPTION_ID_DATA... 阅读全文