Re: conversion of cbm8032 video signal to vga or hdmi

From: afachat_at_gmx.de
Date: Wed, 03 Nov 2021 10:50:31 +0100
Message-ID: <2874988.mvXUDI8C0e_at_euler>
On Mittwoch, 3. November 2021 10:29:07 CET Daniel O'Shea wrote:
> Another way of approaching this may be to have the FPGA stand-in for the
> 6545 and grab the video data directly? Some inspiration:
> 

That's going to be difficult. The CRTC does not have access to the actual video 
data. It only provides timing and address lines.

> > 
> > I'm looking for these informations...
> > the pixel clock
> > the total count of pixels clock on a line
> > the count of visible pixels on a line
> > the width of the horizontal synchro (in pixel clocks)
> > the count of pixel clocks in the horizontal front portch
> > the count of pixel clocks in the horizontal back portch
> > the horizontal synchro polarity
> > 
> > the total count of lines in the screen
> > the count of visible lines
> > the width of the vertical synchro
> > the count of lines in the vertical front portch
> > the count of lines  in the vertical back portch
> > the vertical synchro polarity
> > 

http://www.6502.org/users/andre/hwinfo/crtc/crtc.html#pettiming

André
Received on 2021-11-03 11:05:56

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