Re: Cobalt Micro (was Re: Build your own Motherboards)
Simon Vogl (simon@tk.uni-linz.ac.at)
Tue, 8 Sep 1998 08:15:57 +0200 (CEST)
>
> > > i2c is what holds the control circuitry of the average tv set together (
> > > and incidentally why tv cards for PC's tend to use i2c onboard). There
> > > is linux backend support for i2c too.
> >
> > Well for sensor control this may be ok..
> >
> > This is all great until you want some fast data transmission. What if, say
> > , you want to get 20Mb/s bandwidth ? (for a radio or scope )
>
> At that point you are out of the toys built by hand range except for a
> very very few people. The average inept wielder of a soldering iron (eg me)
> can make i2c stuff work. Doing PCI requires serious tools.
>
I totally agree with this - otherwise I could not have written the i2c bus driver
for linux ;)
What's really nice about the bus is that you don't have strict timing constraints
to follow, so delays from interrupts et al. don't disturb the transmission.
BTW, if anyone wants to have a look, my i2c stuff is at
http://www.tk.uni-linz.ac.at/~simon/private/i2c
Simon
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