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How Is a Hard Interrupt Served to Both Cores in BF609?

Question asked by pengpeng on Nov 6, 2013
Latest reply on Nov 7, 2013 by Aaronwu

Hi all,


I am working on bf609's dual core. uclinux on coreA and coreB would be running some applications. If a hardware interrupt is triggered, would it be routed to both cores? Or, the interruption is masked by coreA, then if necessary informing coreB later? We were concerning the real time performance of our system, and desire that the OS is not interrupted too frequent and let coreB handle the frequent interrupts directly.


So the question is, what is the hardware interruption mechanism for dual core? If coreB can be noticed a hard interrupt directly and serve it, how do we enable this?