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Altera_Forum's avatar
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
Icon for Honored Contributor rankHonored Contributor
20 years ago

Hello,

The IRQ line should be set by the interrupt source and cleared by the interrupt handler itself; just doing a pulse A) doesn&#39;t guarantee the interrupt will be recognised and http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/cool.gif if the pulse is too long, the interrupt handler could be called more times than you expect.