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Lpc2000

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Message

Re: where to buy LPC2106

2004-02-14 by ctaco147

I think you are talking about the LCD driver.
What I would like to build is controller which may have a
rendering engine.

- Josh

--- In lpc2100@yahoogroups.com, "J.C. Wren" <jcwren@j...> wrote:
>     The Texas Instruments MSP430 family have several members with 
built 
> in LCD glass driver support.  Atmels ATMega169 also does, as do 
several 
> members of the (gag) PIC family from Microchip.
> 
>     I don't know how much research you've done on driving LCDs, but 
LCD 
> glass (as opposed to modules using parts like the Hitachi HD44870) 
> cannot be driven with DC voltages.  The average voltage across the 
> segment must be 0 volts or the liquid gets damaged.  The LCD 
controllers 
> job is to provide a suitable waveform along with the multiplexing 
for 
> segments so that for larger displays, you don't need a discrete 
output 
> pin for each segment.
> 
>     Most controllers have built-in safeguards to prevent DC 
voltages 
> from appearing on the outputs for more than a VERY short time.  If 
you 
> choose to implement your own driver logic (which is doable), you 
have to 
> make absolutely sure that if the CPU is hung in a reset state or 
loop 
> that you don't leave the output pins driving in a DC state.
> 
>     If you Google around for LCD drivers, you'll find tons of 
> information on this subject.
> 
>     --jc
> 
> ctaco147 wrote:
> 
> > For example?
> >
> >
> > --- In lpc2100@yahoogroups.com, "J.C. Wren" <jcwren@j...> wrote:
> > > Just out of curiosity, why?  If you're directly driving the 
glass,
> > there
> > > are better choices.
> > >
> > >     --jc
> > >
> > > ctaco147 wrote:
> > >
> > > > Hello,
> > > > Is there any one knows where to buy LPC2106?
> > > > I'm going to use it for my LCD controller project.
> > > >
> > > >
> > > > Thanks,
> > > > Josh
> > > >
> > > >

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