[ILUG] Embedded Linux & Flash-OFDM

Michael Watterson watty at eircom.net
Thu Aug 2 10:39:04 IST 2007


Free & Open source (MPL and or GPL licences may be involved) Flash-OFDM 
drivers now on OpenWrt based Linux
The story:
http://www.wattystuff.net/tiki/tiki-index.php?page=Linksys+WRT54G3G
details
http://www.wattystuff.net/tiki/tiki-index.php?page=Flash-OFDM+using+White+Russian

Next is getting current Linux laptop/desktop platforms working. The 
Qualcomm source via the wiki links
http://www.wattystuff.net/tiki/tiki-index.php?page=QFT+OFDMA+Drivers
does work on Kernel 2.6.9 here in Ireland, but nothing else so far. The 
Makefile was not compatible with my ARM cross compile tools. Maybe 
someone will look at that and see is there a line or statement missing.

So we have MIPS source/binary working on Kernel 2.4.x and possibly ARM 
too. The 2.4.19 ARM platform seems to have some Kernel problems of its 
own, such as Enabling Input Core disables touch screen and Kernel Panic 
if you add USB keyboard and press any key. Cardmgr can't assign resource 
to the ft1000_cs and ft1000 kernel modules, though they load and unload 
when card inserted or ejected on the ARM based handheld.


Ivan Klimek did most of the hard work in Prague/Slovakia. Indeed if you 
have Slovak drivers that *REALLY* work (previous Slovak linked Ubuntu 
drivers do not work even in Slovakia), swapping the Irish ft2000.img 
file instead of the Slovak ft2000.img file works (it's the firmware for 
on PCMCIA card SDR/DSP ASIC for the RF frontend tuning and OFDM decoder 
/coder)

The Cisco / Linksys WRT54G3G is about €129 + VAT in www.dabs.ie
Anyone know of cheaper you can email me :-)

I've 18hrs uptime on the 1st updated modem as I write. Only got it 
working then.

If anyone has suggestions for a SENSIBLE initial package list 
preinstalled on OpenWrt, I'm all ears as the sheer number of available 
packages is overwhelming (25 pages in 9pt sans). You can use ssh and 
commandline to install more packages or the Web based GUI.

Mobile Network live Balbriggan, Naul, Blanchardstown, Swords, Finglas 
kind of area. 27ms ping to heanet.ie

-- 
Mike




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