25 Aug
2012
25 Aug
'12
11:12 a.m.
On 24 Aug 2012 at 19:44, John Elliott wrote:
In theory you could replace the boot ROM (desolder
the 8041, read
its
contents, and burn an 8741 with the new boot image. Or even an 8742,
if you wanted more than 256 bytes of boot program). In the 9512 it
would be even easier, because the corresponding microcontroller used
an external ROM.
Hmmm. Tony seems to think that the boot code resided in the ASIC,
but that would have been the difficult way to go about it.
Thanks for the info about the hard disk providing its own boot code.
That's definitely a starting point.
--Chuck