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Date Posted: 11:30:46 12/03/01 Mon
Author: sakman
Subject: Re: mode, mask configurations...
In reply to: guillet 's message, "mode, mask configurations..." on 10:16:56 12/03/01 Mon

Hey guillet,

I think you're on the right track. I still haven't built a prototype of the C5 but the existing codes should work with the right configuration. The only addition would be the code for switching the Inverted Burst but that will vary by system.

; PORTB byte output values for different modes
Sync equ B'00000000'
Black equ B'00010000'
Video equ B'00010001'
Invert equ B'00110000'
Burst equ B'01010000'
BurstInv equ B'10010000'

RB1 is associated with the LBD - it should be configured as an input.

>I also noticed SYNC was or is assigned to RB4. I don't
>see a link to RB4 for SYNC.

On the schematic, the SYNC (RB4) is connected to a 27K resistor on the output side of the 4066. For the code, you want RB4 low during the HSync and high during the rest of the line.

Late!

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