Re: Serial VFD troubles

["Justin" <groups@xxxxxxxxxxxxxxxx>]

I know, I know...
I'm starting to see the error of my ways :p

Not really expecting to win, I put a bid on this one and got it!
I would have preferred to have purchased a brand new one form a
reputable source (and all round super chap ;-)), but couldn't really
justify the expense.

Now I've seen one of these in the flesh, at least in test mode, I
know I absolutely MUST have one for displaying HA messages (my LCD
just looks pathetic in comparison!), which means if this turns out to
be knackered I'll probably end up grovelling for a new one from your
good self :-)

Anyhow, the garbage I refer to is random characters, not the test
mode - that works fine.

I have tried another PSU and while swapping wires around the serial
GND wire broke (solid core CAT5 not ideal I know)-I guess that might
have had something to do with it :-) It now displays an underline at
position 1, which I suppose is progress, but I still don't see
anything from a terminal app though.

Will play more later.

Cheers,
Justin.



--- In ukha_d@xxxxxxx, "Ian Lowe" <ian@w...> wrote:
> I sure do :)
>
> Your power supply isn't regulated (or isn't well enough regulated)
>
> (or) If the Serial Data (pin2) is connected to 5v, the VFD goes into
> test mode, and rolls continuously - depends if it's garbage, or the
> character set being displayed.
>
> Witness the benefit of buying one from someone who will give you the
> full datasheet ;)
>
> Ian.
>
>
> -----Original Message-----
> From: Justin [mailto:groups@g...]
> Sent: 05 April 2004 21:31
> To: UKHA
> Subject: [ukha_d] Serial VFD troubles
>
> I have managed to get hold of a 2x40 serial (RS232) VFD display
(part
> CU40026SCPB-T24A) but am having some trouble getting it to work
properly
> :-(
> I know some of you have displays like this, so was hoping someone
might
> be
> able to get me on track...
>
> The display is in its default jumper configuration and is hooked up
> directly
> to a PC com port. The trouble is that I get continuous garbage on
the
> display. This happens whether port is open or not
>
> Any ideas what's up?
>
> Cheers,
> Justin.



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