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e-Reader dissection   Message List  
Reply | Forward Message #14743 of 15019 |
Re: [gbadev] Re: e-Reader dissection

Thank you for all you effort in this!!!!!!!
I look foward to being able to print my own mini-demos and games on paper.

All I have is a Hp 750 with a 600 dpi max (though only 300 is offerend in
the printer properties), I guess I will have to get another printer. When I
try to print I always get a dot code that is way ot large..

Thanks again!
-Daniel

----- Original Message -----
From: "Tim Schuerewegen" <Tim.Schuerewegen@...>
To: <gbadev@yahoogroups.com>
Sent: Monday, April 19, 2004 5:16 PM
Subject: RE: [gbadev] Re: e-Reader dissection


> With a little bit of luck you can print dot codes on a (nowadays) standard
> inkjet printer. The "lowest" I could go on my printer for an acceptable
> result was 600 DPI and high quality inkjet paper. For best results, use
1200
> DPI and photo paper. Make sure the dot code is printed using my tool at
the
> correct size, which is a little bit larger than a real dot code. The dot
> code will be printed at the bottom of the page, ready to be swiped through
> the e-reader.
>
> So far working results have been produced on a HP DeskJet 3650 and an
Epson
> Stylus C85.
>
> > -----Original Message-----
> > From: Daniel [mailto:webmaster@...]
> > Sent: maandag 19 april 2004 18:02
> > To: gbadev@yahoogroups.com
> > Subject: Re: [gbadev] Re: e-Reader dissection
> >
> > What is the correct way to print these dot codes? Will a normal inkjet
> > print
> > it at 300 dpi?
> >
> >
> > ----- Original Message -----
> > From: "Tim Schuerewegen" <Tim.Schuerewegen@...>
> > To: <gbadev@yahoogroups.com>
> > Sent: Sunday, April 18, 2004 4:39 PM
> > Subject: RE: [gbadev] Re: e-Reader dissection
> >
> >
> > > Just to let everyone know that the Reed Solomon error correction used
by
> > the
> > > Nintendo e-Reader has been finally figured out. You can download the
> > first
> > > custom created set of dot codes for the NES game called "BombSweeper"
by
> > > SnowBro from http://users.skynet.be/firefly/gba/
> > >
> > > In the next few weeks I am probably going to write several Z80 based
> > > e-reader mini-games and release the source code so that anyone who is
> > > interested can write his/her own mini-games too.
> > >
> > > Tim
> > >
> > > > -----Original Message-----
> > > > From: Damien Good [mailto:d_good@...]
> > > > Sent: donderdag 1 januari 2004 23:17
> > > > To: gbadev@yahoogroups.com
> > > > Subject: Re: [gbadev] Re: e-Reader dissection
> > > >
> > > > although, if the reed solomon encoding/decoding process gets figured
> > out,
> > > > then I am sure a 100% error free raw file can be made from the error
> > free
> > > > bin file.
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "Tim Schuerewegen" <Tim.Schuerewegen@...>
> > > > To: <gbadev@yahoogroups.com>
> > > > Sent: Thursday, January 01, 2004 5:43 AM
> > > > Subject: RE: [gbadev] Re: e-Reader dissection
> > > >
> > > >
> > > > > One important thing that people ought to know is that the RAW data
> > is
> > > > not
> > > > > 100% error free. If you would scan/dump the same dotcode over and
> > over
> > > > > again, you will get slightly different RAW data each time. These
> > errors
> > > > get
> > > > > corrected by the Reed-Solomon decoding of the e-Reader and the
> > resulting
> > > > BIN
> > > > > data is therefore error free. Remember this if you decide to print
> > out
> > > > some
> > > > > dotcodes using my printing tool. E.g. if you have printed a
dotcode
> > > > based
> > > > on
> > > > > a RAW dump containing lots of errors, then you will add these
> > "printed"
> > > > > errors to your own "scanned" errors and lower the chance of
getting
> > a
> > > > > successful read.
> > > > >
> > > > > -----Original Message-----
> > > > > From: Damien Good [mailto:d_good@...]
> > > > > Sent: donderdag 1 januari 2004 13:07
> > > > > To: gbadev@yahoogroups.com
> > > > > Subject: Re: [gbadev] Re: e-Reader dissection
> > > > >
> > > > > more e-reader info at http://www.alpha-ii.com/caitsith2/ereader
> > > > >
> > > > > the released bin/raw data of the e-reader cards might cause
> > controversy,
> > > > but
> > > > > at the same time, the items these cards unlock, can also be
unlocked
> > > > with
> > > > an
> > > > > action replay, and the bin/raw data is very similar, that it
might
> > help
> > > > > with the reed-solomon code cracking. (heck, the dotcodes on the
> > actual
> > > > > powerup cards look very similar, with only a few bytes in the bin
> > data,
> > > > and
> > > > > maybe 20-60 bytes in the raw data being different.)




Tue Apr 20, 2004 2:49 pm

webmaster@...
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Message #14743 of 15019 |
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With a little bit of luck you can print dot codes on a (nowadays) standard inkjet printer. The "lowest" I could go on my printer for an acceptable result was...
Tim Schuerewegen
firefly0072001
Offline Send Email
Apr 20, 2004
4:29 am

Thank you for all you effort in this!!!!!!! I look foward to being able to print my own mini-demos and games on paper. All I have is a Hp 750 with a 600 dpi...
Daniel
webmaster@...
Send Email
Apr 20, 2004
10:28 pm
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