Re: HDMI Video/Audio Card

[Steve <srkh28@gmail.com>]

On Jan 17, 2:01 pm, Charlie <charlieD...@verEYEzon.net> wrote:
> On 1/17/2012 8:55 AM, Steve wrote:
>
>
>
>
>
>
>
>
>
> > On Jan 15, 5:35 am, Antoine Vignau<antoine.vig...@laposte.net>  wrote:
> >> Please, Steve, for the non hardware guy I am, tell me if that would
> >> display the IIgs video modes? If so, I would be interested in your
> >> card. Unless your card deals with video output and not with Apple II
> >> video modes. I don't know, I don't understand!
> >> Thank you,
> >> antoine
>
> > Hi Antoine,
>
> > I dont know yet. ive been using an apple IIe to get it up and running
> > - but only with test screens at this point. I hope to give it a spin
> > on the IIgs at some point. Charlie has done some work on the IIgs
> > version for carte blanche.
>
> > Steve
>
> Hi Antoine and Steve,
>
>  From what I've seen and heard my code would probably work with only
> changes to the output pins.  Give it a try.  For what it's worth all my
> testing was done on a ROM 01 GS and it may have problems with a ROM 03.
>   I say this because Bill Garber who is testing my 6 bit, fixed palette
> code is getting errant pixels on his ROM 03.  I've also gutted all the
> code that is unrelated to video output (including the code to flash the
> Carte Blanche) so that I would have room in the FPGA BRAM for the
> palettes and for faster access when in the //e DHR mode.
> The picture I'm getting for normal 640 and 320 GS modes is as good as
> any I've ever seen.  Better than the Apple IIgs RGB monitor if you can
> take the facts that there are no side borders and the picture is so
> sharp that there is no dithering.  The 320 Fill mode has a bug (I'm
> working on that).  Weird modes that do over-scanning don't work
> correctly and for some reason 3200 color pictures are a mess.
>
> Charlie

Hi Charlie,

Wow, even with the bugs you mentioned, that still sounds like great
progress!. This card and your code sounds like they could be very good
friends. All thats needed for a picture is pointers to each of you
colour groups (the 3x 4bits), active video cycle and sync. Ill clean
up my schematic and get it up on applelogic.

Steve