Well, here’s an annoying one for you:
We recently ordered another 3Com 3C905C-TXM
ethernet adapter, which we have been using quite
successfully with RTP.
What we received is the “new” version
of the board from 3Com: the 3C905CX-TXM.
Its about half the height of the old one and uses a smaller
footprint chip and has a lower pin count (i.e. cheaper to build).
It has the exact same specs as the old card and is supposedly
“100%” identical (I’ve heard that before…).
The 3C905C-TXM works in QNX.
The 3C905CX-TXM does not work.
Now for the weirdness…
In keeping with the “100%” identical vain, the
card reports the exact same PCI ID of 10B7:9200
as the older card does and QNX detects it and
quite merrily starts “io-net -T devn-el900 etc”
and complains not an iota.
Unfortunately, it can’t talk to anyone.
I start TCP/IP and I can ping myself.
I start qnet and I can see myself in /net.
But NOTHING is going out on the network.
I know the card works because it can do
a remote boot via DHCP off our Linux box
with no probs – so the hardware IS talking.
But QNX is not talking to it…
So apparently there must be some “trivial”
difference between the two boards that is
keeping the QNX el900 (patch b) driver
from working with it.
Anyone else seen this board yet or had
problems with it???
(I’ll post the full pci -vv dump once I
am able to get that PC back up on the
network again – as putting the PCI
card into my machine has hosed the
PnP ISA config for my NE2000).