22 Jul
2002
22 Jul
'02
2:03 p.m.
So I asked for wisdom on ROM signatures, if I should use Step 1 or Step 2 and I recieved supporting comments for both. (Some Fluke software defaults to Step 2 & some to Step 1 to make things more complicated). Well I finally saw a fault in the Step 2 method that is not caught. If A0 line is out of circuit you can get a "valid" Step 2 ROM Signature.
From now on my ROM signatures will be Step 1.
Kev