Re: TI-H: Internal mem expander question


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Re: TI-H: Internal mem expander question




4x20 lcds are only $6.75.


>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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