Interrupt handling

Question

Hi,

I connected a counter pin to the PIO in order to generate IRQ every 256 cycles. Appropriate IRQ handler is called after the interrupt triggers. However, after handling the interrupt, the alt_irq_handler stays in the loop because ipending is still set. So, how shall I clear the interrupt request ?

Best regards,

Joel

altera_forum · Answer

problem solved

altera_forum · Answer

Hi,  Can you please write how you solved the problem?  thanks

altera_forum · Answer

In the handler routine reset the edge register by writing 0 to it or ones ( ones didnt work for me but the manual states it) in dependence of PIO configuration.  regards

altera_forum · Answer

thank you :)

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Interrupt handling

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