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AT91PS_AIC pAic;
//* Load System pAic Base address
pAic = AT91C_BASE_AIC;
请问这段什么意思?
AT91F_PMC_EnablePeriphClock ( AT91C_BASE_PMC, 1 << AT91C_ID_PIOA )
请问这段什么意思? 1 << AT91C_ID_PIOA ???
AT91F_AIC_ConfigureIt ( pAic, AT91C_ID_PIOA, PIO_INTERRUPT_LEVEL,AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL, pio_c_irq_handler);
AT91F_AIC_EnableIt (pAic, AT91C_ID_PIOA);
这些和上面有什么联系吗?(pAic = AT91C_BASE_AIC;)
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