Re: Apple II Interrupt card

[mjmahon@aol.com (Michael J. Mahon)]

In article <TaYea.175620$F1.7071@sccrnsc04>, "@nospam.01@attbi.com"
<""jsymolon\"@nospam.01@attbi.com"> writes:

>back to the original goal...

Yay!  ;-)

>Assume that people want to run Contiki...
>
>Need:
>Ethernet card.

Not necessarily (but I see why you would want something other
than a serial port).

>Clock for those who don't have one.

Maybe not.  If it is only for the purposes of timeout determination,
then a very approximate "timing" solution may suffice.  But if you
have the real time, so much the better.

>Software:
>Contiki uses the uIP stack and works with a clock for timing.
>
>Discussion of interrupt card, mouse card or clock card to provide 
>interrupts, even though Contiki does not need them.
>
>One problem is heavy traffic on the network.  I've been reading the 
>application note on the CS8900A in 8-bit mode.  It does not support 
>interrupts and must be polled.  As long as there is enough time to 
>handle each packet, we're ok.

And the loss of an occasional packet is not a problem, either--
that's what TCP was invented for, after all.

>I have no problem with interrupts, it does make some things easier to 
>deal with.

And interrupts are obviously a source of great amusement for
many folks...  ;-)

-michael

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