Re: TI-H: Internal mem expander question
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Re: TI-H: Internal mem expander question
Why does it have to be so big? I mean a 16x2 character LCD is perfect for
the job... and they are only 20 bucks too... I mean one line would scroll
the song info, and the other line would have misc info, like maybe the
status (Play, Stop, Pause, No Songs) and maybe time too... I mean, the
smaller the better right? Only if we could use 2.5" drives....
On Fri, 20 Nov 1998 15:52:11 -0900, Grant Stockly wrote:
>
> >In a message dated 11/19/98 10:48:43 PM Central Standard Time,
> >gussie@alaska.net writes:
> >
> >> >I dont see what the big deal with this is grant. Just try it whoever
> >> >wanted to make one, and if it works, great!! goal accomplished.
grant
> >was
> >> >wrong. If it doesnt work, grant was right, you have two extra
resistors
> >> >and a switchand a nice 32k sram chip. i dont think the calc should
have
> >> >actual damage to it unless you seriously screwed up.
> >> Get it? :) having it work 50% of the time isn't fun...
> >I don't quite understand this. Have you looked at the plans, Grant? To
me
> >(and I don't think I know as much as you at all, but...) they make sense,
and
> >it's very hard for electronics to make sense to me. Maybe I'm wrong,
but...
> >what would make this work 50% of the time? It is possible it would not
work
> >at all, or work all the time, but 50%? That just doesn't make sense to
me.
> >Keep in mind I am not flaming you, I am asking a question.
>
> Switching CS lines improperly. There is a setup/down time that is about
> 200ms I think. If you leave it at high impeedance it can leave the chip
in
> unexpect states.
>
> Grant
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