On 10/27/15 7:10 PM, Jules Richardson wrote:
On 10/27/2015 08:36 PM, Al Kossow wrote:
On 10/26/15 8:30 PM, Jules Richardson wrote:
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.
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.
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/technotes/hw/hw_30.html
The RBV ASIC in the SI only knows about the original 8 sense codes.
