27 Oct
2015
27 Oct
'15
7:18 p.m.
On 10/27/15 7:10 PM, Jules Richardson wrote:
On 10/27/2015 08:36 PM, Al Kossow wrote:
here is a mirror of the tech note that describes the pinouts and sense codes
https://web.archive.org/web/20040222182709/http://developer.apple.com/technā¦
The RBV ASIC in the SI only knows about the original 8 sense codes.
On 10/26/15 8:30 PM, Jules Richardson wrote:
Hmm, so strapping pin 7 to pin 10 on the video connector isn't enough to kick it into
640x480 mode like it is with various other Apple hardware?
For the 512x384 mode it's certainly not within VGA spec, but I know the system is
capable of 640x480, which I'm assuming should be. I'm currently wondering if
it's outputting composite sync, though -
everything I'd seen suggested it was either SoG or separate h/vsync, but maybe
that's wrong and it's neither.
cheers
J.
I've got a system here which makes
encouraging startup noises, but isn't
outputting any video to a VGA screen (adapter cable OK with my other Macs).
The si and cx/ci are old enough that it doesn't support VGA timing.