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Lpc2000

Index last updated: 2026-04-28 23:31 UTC

Message

Re: displaying scanned pics on a CRT

2006-02-08 by seangra

Except using 8-bit BMP files is not only less colour resolution, but 
a lot more space than a JPEG file.  Considering that there are 
plenty of jpeg decompression routines available for use, why not 
stick with jpeg?  Flash space is pretty expensive on an embedded 
device (unless you're using SD card or something), but still...

-- Sean

--- In lpc2000@yahoogroups.com, "zoo_lak" <zoo_lak@...> wrote:
>
> --- In lpc2000@yahoogroups.com, "Pieter Verstraelen" <pieter@> 
> wrote:
> hi Pieter
> 
> i have still to get my hardware ready, but i have started work on 
> the software ... so that the basic software is ready by the time i 
> get the h/w ....and hence the querry on scanned pics.
> 
> if it is of any interest to any one.. i realized it would be much 
> easier to scan the pics as bmp 8-bit resolution files.. store them 
> in flash and then just read them out for display ...add any 
> transforms if reqd ..the bmp file format is much easier to 
handle... 
> also fonts could be generated and stored in a similar manner.
> 
> sorry i could not help u.
> 
> rgds
> zoojar
> >
> > Hello,
> > 
> > the S1D13506 requires an external ready pin on the processor 
(ARDY 
> of
> > WAIT signal).  The Philip LPC series does not have this pin.  Do 
> you use
> > the S1D13506 on the data-bus of the LPC2214?  If so, how many 
wait
> > states are you using to get this working?
> > 
> > Thanks,
> > 
> > Pieter Verstraelen
> > 
> > 
> > > -----Oorspronkelijk bericht-----
> > > Van: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com] 
> Namens
> > > zoojar lakdawla
> > > Verzonden: zaterdag 4 februari 2006 7:26
> > > Aan: lpc2000@yahoogroups.com
> > > Onderwerp: [lpc2000] displaying scanned pics on a CRT
> > > 
> > > i am using a LPC2214 with the Epson S1D13506.
> > > 
> > >   i wish to scan pictures and display them on the CRT.
> > > 
> > >   The scanned pictures are in jpeg format.
> > > 
> > >   How do i convert it to data which can be burned into ROM and 
> then
> > > tranferred to the display memory for display on the CRT
> > > 
> > >   or put in another way : how can i display a scanned picture 
on 
> a CRT
> > ?
> > > 
> > >   can someone point me in the right direction ??
> > > 
> > >   thanks
> > > 
> > >   zoojar
> > > 
> > > 
> > > ---------------------------------
> > > Relax. Yahoo! Mail virus scanning helps detect nasty viruses!
> > > 
> > > [Non-text portions of this message have been removed]
> > > 
> > > 
> > > 
> > > 
> > > Yahoo! Groups Links
> > > 
> > > 
> > > 
> > > 
> > > 
> > >
> >
>

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