Re: RAM upgrade abandoned

I actualy dont see any big reason to upgrade ram 4mb is quite enough it will
not improve speed at all
another thing is flash which is very thight on space but still enough for
basic stuff.
I was even able to add trafic shaper to it.
basicaly flash have enough space for everything but not for everything at
once.

adding another flash chip should be not so hard but I dont see a way to
reach A22 line
except it is quite easy to do some tricks with gpio lines to switch bwtween
flash chips.
this can be done this way : boot kernel and drivers, then unmount root
sytem, change flash chips and mount new root sytem.
sounds ugly but quite easy


but all this is too hard and almost nobody will be able to do this without
experience in electronic and some knowledge.


so who is going to spend some weeks for that? (almost nobody will be able to
use it anyway)

or if you  so much want more space then solder another pcmcia slot and put
20mb flash card in it




----- Original Message ----- 
From: "Bruno Lopes F. Cabral" <[email protected]>
To: "Linux Access Point Development" <[email protected]>
Sent: Friday, January 23, 2004 12:57 PM
Subject: Re: [LinuxAP-dev] RAM upgrade abandoned


> Hi Tom
>
> thanks for the update!
>
> Tom Parker wrote:
> >>I recall about a project to expand the flash inside the unit
> to 2MB.
> >>it's at http://www.wiresncode.com/projects/wireless/openap/
> >
> > I gave up on this.  I couldn't find a combination of the RAS
> and CAS
>  > jumpers that would give access to the other 4M.
>
> it's a pitty to hear that :~(
>
> >  I also noticed that the 3.3V regulator gets even hotter
> with
> > the extra RAM (no surprise here).  I managed to get what I
> wanted
>  > into 4M.
>
> me too, but more RAM would make the unit behave better and give
> it a little longer lifetime... NBD isn't an option to me because
> most of the time there is no unix machine on the customers LAN
> to get the swap :~(
>
> > I am happily using the flash boards shown on my website in
> my
>  > 3 2450s
> [...]
> > I didn't try to enable the onboard flash, but if you can
> find
>  > the extra CS line and reprogram alios to map the other CS into
>  > memory the you will have a second flash disk......
>
> having an 2MB or even 4MB flash would help if linux could
> run in flash (i.e. uncompressed) like i.e. cramfs and jffs
> do, instead of being expanded to RAM. I don't think this is
> even possible but ...
>
> (I remember ISA RAM expansions, for old machines. perhaps
> one could use this idea to add a real bank of memory,
> or even an RAM slot connector! then modify ALIOS do enable it
> instead of internal RAM -- or am I going crazy?) LoL
>
> > ps. My girlfriend is in Brazil (Lencois) at the moment!
>
> it's very nice there. try to came with her next time! ;-)
>
> > pps. my favorite wireless linux box looks like being the
> Linksys
>  > WRT54g, the hacking is going well on this
>  > (http://www.sveasoft.com/forum6.html)
>
> on http://hri.sf.net Petr Novak published
> his successfull
> port on SMC7004ABR V2 and me and others are working on
> CX84200 hardware (SMC7004VWBR)
>
> Cheers
> !3runo
> from Brazil
>
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>