12 Apr
2001
12 Apr
'01
10:03 a.m.
--- Dave Ruske <dave(a)ruske.net> wrote:
The dots are what I was after.
Will do.
Don't know yet. I figured out how to power it up last night, looking at the
innards (DIN-5 power plug, two grounds, two N.C., one going into the power
switch then off to a 7805 regulator)
Something I learned while looking up he 1869/1870, is that it may be color,
not B&W as I originally assumed. The chipset supports color; I have no idea
about the firmware.
> > 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?
I have a few of them and they are not all the same shade of red. One is
nearly orange. I suspect lack of QA in the plastics department.
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?
It appears that the article is about the Netronics Elf II, as it suggests
using a double-sided PCB or wirewrapping your own. I always wanted to
build it, but I never found a source of the keyboard chip (74C923?)
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)?
TV (RCA jack) and/or presumably some other kind of monitor (DIN-5 with the
middle pin connected to the RCA jack via ECO-type wire on the back side of
the board).
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?
No slots. There are a series of DIP switches along one edge for baud rate,
etc. The serial port is there because this is some kind of ASCII terminal.
-ethan
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