RE: [jornada] Jornada 820

Yes, the RAM always helps, it's just so darn expensive ;)

The larger the storage system is, the larger distribution you can fit. Right
now, familiar aims to fit into the flash space of an ipaq so it's pretty
limited to 32MB.

No, the software upgrade to 3.0 wont help, because the 820 has a permanent
ROM, not a flash ROM. Additionally, the '3.0 update' only updates the
applications, like Word and Excel, which were already at 3.0 versions. The
core system versions remain at 2.11 levels. It's simply a service pack, not
a true upgrade.

As far as kernel hacking, we need to quanity a list of differences between
the 820 and the 720 as a starting point. I know the CPU is slightly
different, there is a SA-1100 in the 820 as opposed to a SA-1110 in the 720.
There might be differences in the framebuffer hardware as well. I'd imagine
that the sound hardware is the same, but the digitizer will undoubtedly be
wholly different, as the 820 has a trackpad instead of the touchscreen. I
dont know anything about the modem on the 720.

Unfortunately, I am an administrator and not a developer, so I can only be
of limited assistance in developing this, but I would be more than happy to
contribute however I can, ie testing.

Chris Bellers

-----Original Message-----
From: Francois-Rene Rideau [mailto:fare@tunes.org]
Sent: Monday, April 22, 2002 5:42 PM
To: jornada@handhelds.org
Subject: [jornada] Jornada 820

Dear Jornada linuxers,

I will get my 820 on wednesday, and I intend to beef its memory and storage
so as to install Linux on it. [*]

I found a supplier of F1267A memory on the web (though
their server's /tmp is full, so you can't actually purchase).
Does 32MB of RAM instead of 16 make a noticeable difference?

How much memory (CF card or otherwise) must I purchase for Linux?
I think I'll go for a 256MB card, or maybe a 1GB microdrive?
How much do such things affect the autonomy of a machine?

As for people having trouble booting from Windows CE 2.11,
it looks like the HP site has an upgrade for the 820 to CE 3.01.
Would it help?

I assume there will be some kernel hacking involved.
Where should I begin from?

And where are docs to become an ARM guru?
I intend to write a native-code compiler for a LISP dialect,
and have been warned about particular cache coherency issues
that the kernel usually manages for C programs, but that I'd
have to deal with if dynamically generating code from userland;
where are the docs about that?

[*] Hey, the first computer I owned was a 486dx33 laptop with 640x480
16-greylevel screen, 16MB RAM and a 240MB HD, and ran Linux 0.99.15.
It looks like the Jornada is more an equal of slightly better computer
in all respects -- plus at the time, I craved for an ARM-based computer.
Weird how I get the toys I want, just ten years later (I also have one
of those 1991 LISP Machines).

Yours freely,

[ François-René ÐVB Rideau | Reflection&Cybernethics | http://fare.tunes.org
]
[ TUNES project for a Free Reflective Computing System | http://tunes.org
]
Those who do not understand LISP are condemned to not even being able
to reinvent it poorly. -- Faré, without apologies to Henry Spencer.
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Received on Tue Apr 23 16:47:20 2002