RE: Asteroids display problem

>>Analog Devices has them for on $13.00 each.
Really? I thought that was the bare wafer price.

>From analog, the ceramic versions are $37.51 each for 100+ and the plastic
versions $20.79 each for 100+.

USBID quoted me something like $34 each too.

-----Original Message-----
From: owner-vectorlist@synthcom.com
[mailto:owner-vectorlist@synthcom.com]On Behalf Of Joe Bachmann
Sent: 15 June 2002 20:04
To: vectorlist@synthcom.com
Subject: Re: VECTOR: Asteroids display problem

Analog Devices has them for on $13.00 each. USBid has some available, but
their
minimun is $250 per line item. www.usbid.com

If anyone is interested in a DAC0800, I have some of those for $4.00 each.

JB

Neil Bradley wrote:

> I've got an Asteroids board with a really bizarre problem:
>
> http://www.synthcom.com/~nb/asteroids.jpg
>
> What you're seeing is the standard test pattern. From what I can gather,
> the "Y" stepping is completely OK. However, it looks like every 8 or 16
> "pixels" or so, are rounded down, like it has a bit in one of the X
> coordinate counters stuck low. When I play the game, all objects look
> really strange - like every 8 or 16 "pixels" they're looped back around to
> the current 8 or 16 pixel set rather than extending to the adjacent
> pixels. This looks to be a "chain link fence" style of problem. Could it
> be one of the DACs or ....?
>
> BTW, Does anyone know of a source for these DACs?
>
> I'm curious if A: Anyone has seen this type of problem before, and B: if
> I'm looking in the right area for the root problem. Thanks!
>
> -->Neil
>
> --------------------------------------------------------------------------
-----
> Neil Bradley "Why does not knowing Jack require you to know
Dick?"
> Synthcom Systems, Inc. "One idiot programmer will negate the work of at
least
> ICQ #29402898 two competent programmers."
>
> --------------------------------------------------------------------------
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Received on Sat Jun 15 14:57:42 2002