Linux-kernel mailing list archive 1999-34,: problem with edge and level triggered interrupts

# problem with edge and level triggered interrupts

Anil Kumar S R (anilsr@sasi.com)
Tue, 24 Aug 1999 17:30:57 +0530

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Hi,
I want to have some clarification with regards to interrupts
being edge or level triggered.

1. How can I decide whether the interrupt is edge or level triggered
other than data sheets and through oscilloscope.
2. Can program PIC(Interrupt Controller 8259A)?
3. If so how can I program PIC to set the mode as edge or level
triggered interrupt mode.
4. I want to have shared interrupts for two devices for which I need
have interrupts for the two devices as level triggered.So I want
to confirm whether the interrupt generated is level or edge
triggered . How can I confirm?
If it is edge triggered then Can I change to level triggered?
5. Data sheet of PIC tells that interrupt trigger mode can be
programmed . How can this be programmed?

Expecting reply

with regards,
Anil

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