11 Aug
2007
11 Aug
'07
10:41 a.m.
Probably pretty basic PCI questions, but it seems to be difficult to
find detailed information about PCI online (for less than big $$).
I have a 98% useless 53C875-based SCSI card (Diamond Fireport 40),
useless because the Diamond PCI ID is different from the Symbios PCI
ID. I have several machines that support 53C875 chips natively (Alpha,
Sun, perhaps HP 9k), so I'm trying to figure out how to turn this thing
from a piece of junk that I trip over into an asset.
Looking at the card, there is a small Atmel EEPROM (not the firmware).
(a) does anyone know if there's a way to bittwiddle without pulling the
EEPROM? (2) since the machines I will be using it in have onboard
firmware support, what would happen if I just pulled the chip (or is
the setup of onboard peripherals integrated into the system firmware
and the card initialization will fail without the EEPROM)?