Re: Cobalt Micro (was Re: Build your own Motherboards)

Philip Blundell (philb@gnu.org)
Mon, 07 Sep 1998 22:33:07 +0100

>> It's still much more complicated than things you need for a simple ISA
>> card -- a microcontroller instead of few TTL chips (or single GAL).
>
>On the contrary, you can do i2c with no additional hardware on the PC
>end, and with just i2c aware logic devices the other end if you wish.

Micros are scarcely expensive anyway. You can get an 8051-compatible single
chip device for the price of a pint of beer. If you're lucky you get IIC in
hardware as well, otherwise you have to bang your own bits. Just add power, a
crystal and a bit of RC to kick it into life and away you go. Atmel do quite
a neat range of them with up to 20KB or so of flash on the chip.

p.

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