Hello All, I need to write some ISRs to handle various...

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Question by Vik
Submitted on 8/11/2003
Related FAQ: comp.os.vxworks Frequently Asked Questions (FAQ) [LONG]
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Hello All, I need to write some ISRs to handle various interrupts.The interrupts are generated by various custom designed boards connected to the SBC via the VME bus So my question is:- Before returning from an ISR in VxWorks, do I have to explicitly clear the interrupt by setting some bit in the control register of the interrupting device, or the underlying system( the wrapper generated by the "intConnect" call ) will automatically clear the interrupt ? But how will the wrapper know which bit in the control register it has to clear ? Is there any other way to clear this VME interrupt or it has to be done explicitly by the ISR code, before it returns. Thanks, Vik

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