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Altera_Forum
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20 years ago

How to define the width of the pulse in IRQ?

hello everyone: How to define the width of the pulse in IRQ,i use the "level" mode. thank you !
Altera_Forum's avatar
Altera_Forum
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20 years ago

If you are using the PIO in level mode, there is no way to guarantee that the interrupt will be active for any period of time. If you require knowledge that the state transitioned and/or don't want to have unknown cause interrupts, you will need to use the edge interrupt option of the PIO.