28 Dec
2012
28 Dec
'12
4:06 p.m.
On Fri, Dec 28, 2012 at 04:51:38PM -0700, Rob Doyle wrote:
There used to be chips that would 'bridge' a
PCI bus to an ISA bus. If
the chips are still available, it wouldn't be huge design change. When
PCI was young, they were common.
I've got a PLX9050 RDK in my basement, with the hilarious extender-style
ISA socket on the top edge of the board -- but it's PIO only. No DMA.
I really think it's worth a *lot* of firmware to avoid needing fresh SW
written (and maintained) for each PC OS. Windows isn't so bad, but keeping
a driver working on Linux is a total nightmare. It's like they think it's
*funny* to change the driver interface every few versions. So that's why
I'd rather be compatible with the same old thing.
John Wilson
D Bit