Lpc2000

Hi Marko.
I check pinout one more time, pinout is good (I think:
Vdd=3V, Vlcd=5V(with capacitors), CS0=pullup to H,
PS1=pullup to H, CD to uProc,  PS0 to
GND;D1,3,4,5,6,7,RD/WR=GND; Vlcd -> Cap 1uF, and other
pins (VB0+,-; VB1+,-) about LCD with capacitors 1uF)).
I change Vlcd, first was 3V (same as Vdd) and I
changed to 5V. Power consumation increase from cca.
30mA to 110mA. I think, this is good, manual says
2x60mA. Timing I check on scope, minimal timming at UC
is in nano seconds, I work with micro sec.
When I check pin VB0+,VB0-; VB1+, VB1- with scope =
without signal, but not connect to GND. 
Question: It is good ? I think not !!!
Please check your signal on VC pins.
Thank for you advise.

--- "Marko Pavlin (home)" <mp@...> wrote:

> Boris,
> 
> First double-check the pinout. It's "mother" of
> about 99% of all mistakes-
> 
> Second, check timing. I finished one SPI LCD driver
> last week and used 
> LPC2138 SPP with max. clock. It was too fast for the
> LCD and I need to 
> reduce clock frequency to operate properly.
> 
> Marko
> 
> Boris Kralik wrote:
> 
> > Hello.
> > Do you have anybody experience with LCD display
> with UltraChip
> > controller ?
> > I want to operate with this using SPI, but
> commands not working. I
> > power LCD with 3V (Vdd), 5V (Vlcd) and working in
> S9 mode with 3 wire
> > connections. I try any command send to LCD, but
> any reply.
> > If anybody have source code of procedure for
> control this, it help me.
> > Thanks.
> >
> >
> 
> 


Regards / S pozdravom Boris Kralik

http://www.geocities.com/kralikbo/
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