Re: RAM upgrade abandoned

"Bruno Lopes F. Cabral" <[email protected]> Fri, 30 Jan 2004 22:08:02 -0200
Newsgroups gmane.linux.drivers.wireless.access-point
Message-ID <[email protected]>
Hi

Roy wrote:
>>you problably missed but there is a hack to add more flash,
>>and from what Keith said, perhaps adding 4MB flash would
>>let us use an uncompressed filesystem and get a few more
>>CPU cycles from the units
> 
> If you are talkink about the same page
> http://www.wiresncode.com/projects/wireless/openap/
> then you are wrong
> this project REPLACES flash it does not add anything

yes, but the basis to add more is there :-)

> this ap have 1mb as before.
> This project had good idea how to avoid using sram but nothing else
> and I still dont understand authors motivation to replace exsisting
 > flash chip with aditional board forever.

the original SRAM card was pricey, US$200 or so, and besides
pretec US$65 one he made a cheaper alternative with spare
parts he have. a good work!!

> and about CPU cycles you still miss the point:
> yes, maibe you will increase userspace response
> but who cares about it?

the unit is now only capable of about 350-450KB/s,
but with original firmware it does more. so if unix
turn the unit SLOWER, we must know the reason,
don't we?

> it is not so slow anyway. it wont increase througput  at all.

well, I have 486 notebooks with similar hardware
running much better than eumitcomm board...

> and if you are still going to upgrade memory you should
 > be ready to solder the same type chip on top of old flash
> there wont be any upgrade cards
[...]

solder a header is OK, but do that on pins is a work
I'd avoid, if I can, sorry

> if you need so high computing power then use normal computer
> you probably can find some 100mhz pentium for free or very cheap

the problem is the power source (AT/ATX). big, heavy,
you have to take a long power cable to the unit

PoE is handy and that's one of the reasons one would
use an AP instead of a computer

> so the best would be to design some isa flash card to aviod
 > using hdd (or use ide flashdisk)

I already do that on some computers ;-)

> I think it is much better than working on obsolette platform
 > which is not possible to buy anywhere

they appear from time to time... last time I saw they were
bellow US$50, new, on U.S. shop (not in ebay)

> also this way probably wont become obsolette because uses pc platform.

:-)

Cheers
!3runo