[LinuxPPS] PPS driver for ISA bus

[Rodolfo Giometti]

On Wed, Oct 24, 2007 at 09:46:49AM +0200, Bernhard Schiffner wrote:
> Am Mittwoch, 24. Oktober 2007 08:58 schrieb Rodolfo Giometti:
> > On Wed, Oct 24, 2007 at 01:21:22PM +1000, Cirilo Bernardo wrote:
> > >     Is there any value in writing a PPS driver for ISA bus interrupts?
> ...
> > >     I imagine 2 such drivers - one which works with any generic ISA
> > >    interrupt, and this may be useful when connected to a timing
> > > standard. 
> >
> > No, even if I don't understand exactly what you need. :)
> >
> 
> Rodolfo,
> 
> it's easy to make a simple PCB for ISA which only connects Ground (perhaps 
> XClock and +5VDC) and _one_interrupt_line_.

Ah! Ok, now I see.

> So the question is, how to add some PPS-detection into the ISA-bus ISR.

Do you mean how to auto-magically detect the board? If so with ISA
board you may only use heuristic methods.

Ciao,

Rodolfo

-- 

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