> > > Is there any chance of a revision to emulate the appearance of the
TIL311
> > > displays when in "Elf" mode?
I modified the "classic" ELF skin to use a TIL311 style display last night.
I found a TIL311 data sheet so I'm pretty sure I've drawn the output
accurately, though it lacks the "slant" of the original device. One thing
the data sheet couldn't tell me is whether I colored the body of the device
correctly. Not having a real one for reference, I used the color from Bill
Richman's emulator as a reference and wound up choosing the darkest red in
the Palm's 8-bit palette. Is this pretty close to correct?
> With the renewed interest, I'll get back to editing the Elf II article
Great! Let me know when the edits have been made and I'll change the
description on the link! Do you know if that article was the basis for the
machines sold by Netronics and Quest Electronics?
> BTW, I checked - I _do_ have a VIP 3301. What would you like to know
about
> it?
I'm curious about what's in the ROM... if I were a user and plugged the
VIP-3301 in, what would I see on the screen (I presume it was meant to be
connected to a TV)? Tiny BASIC, perhaps, or maybe an OS prompt that would
allow programs to be loaded from cassette? Or did this thing have a
cartridge slot somewhere ala RCA's Studio II video game? What was the serial
port meant for? A printer, perhaps?
Basically, if I were to read a sales flyer for the VIP-3301, what features
would RCA highlight?
Thanks for the assistance!
Dave Ruske
dave_at_ruske.net
----- Original Message -----
From: "Ethan Dicks" <ethan_dicks_at_yahoo.com>
To: <classiccmp_at_classiccmp.org>
Sent: Thursday, April 12, 2001 12:10 AM
Subject: Re: New 1802 (ELF) Emulator, Website
>
> --- Dave Ruske <dave_at_ruske.net> wrote:
> > Ethan Dicks wrote:
> > > Is there any chance of a revision to emulate the appearance of the
TIL311
> > > displays when in "Elf" mode?
> >
> > Easily done; look for it in the next release.
>
> Thanks.
>
> > Sellam Ismail wrote:
> > > I created a new section in the VCF Link Library for RCA:
> >
> > Thanks, Sellam, I appreciate it!
>
> With the renewed interest, I'll get back to editing the Elf II article
> at http://penguincentral.com/retrocomputing/ElfII (it was a work in
progress
> that stalled; the freebie OCR software that came with my sheet-feed B&W
> scanner isn't the best).
>
> BTW, I checked - I _do_ have a VIP 3301. What would you like to know
about
> it? There's wads of CMOS parts, some TTL, 5 x 2114 SRAM, ECO wires...
>
> The RCA chips are:
> 1802 (CPU - facing backwards!)
> 1823 (128x8 450ns SRAM also backwards)
> 3 x 1852 (8-bit I/O port)
> 1854 (UART - backwards, too!)
> 1856 (bus buffer)
> 1867 (4-bit latch and memory decoder)
> 1869 (Video Interface System - "VIS" - computer interface)
> 1870 (Video Interface System - "VIS" - video sync, color subcarrier,
etc.)
> 2 x 4059 (divide-by-N counter)
>
> There's also a MOS chip in there, probably the ROM - p/n 302-7185-001
>
> -ethan
>
>
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Received on Thu Apr 12 2001 - 07:09:00 BST