24 Jun
2011
24 Jun
'11
9:10 a.m.
On 06/23/2011 08:50 PM, Steven Hirsch wrote:
Thanks, Ray. I sort of suspected it was checking the ROM. After some
digging, I found an image for the parport ROM on the web and blew
another 2716.
Presto! It now passes diagnostics and will happily boot a ProFile
from the upper or lower port :-).
The image that came on the card doesn't look at all like the working
one. Is it possible it predated the 2/10 and may have been intended
for use on a Lisa 1?
I doubt it since the ROM checksum routines are the same for L1s as well
as L2s. Most likely it was corrupted. If you really want to you get a
binary of the image and look at it with a 68000 disassembler, or send it
my way to do the same.