optixx » Linux

Todays Snes

Administrator — Fri, 12 Dec 2008 17:08:07 +0000

Today i took the sprite sample from vintage dev and added some stuff from the NWI sample…

[flash]http://vimeo.com/2506586[/flash]

sprite.tar.gz

New WordPress – One liner update

Administrator — Fri, 12 Dec 2008 16:49:09 +0000

Just installed 2.7 wordpress. Here is a one liner for the brave one:

 
curl http://wordpress.org/latest.zip -o "new.zip" \
&& unzip new.zip \ 
&& rm -rf ./wordpress/wp-content/ \
&& cp -vr ./wordpress/* ~/htdocs/ \
&& rm -fr new.zip wordpress

Update on 64×48

Administrator — Sun, 07 Dec 2008 20:53:14 +0000

Made some progress. Nice sunday hacking.

Toshiba LED Dot Matrix Double Action

Administrator — Mon, 01 Dec 2008 21:06:35 +0000

more to come…

[flash]http://vimeo.com/2399376[/flash]

Toshiba LED Dot Matrix First Success

Administrator — Mon, 01 Dec 2008 17:10:26 +0000

First success…

[flash]http://vimeo.com/2396571[/flash]

[flash]http://vimeo.com/2396646[/flash]

[flash]http://vimeo.com/2396662[/flash]

Led Matrix 16×16

Administrator — Fri, 28 Nov 2008 11:58:44 +0000

New toy…Thx Max.

Datasheet Toshiba LED Dot Matrix Modul TLMM 501 B2

Spoof BTADDR

Administrator — Thu, 12 Apr 2007 10:23:15 +0000

Wrote a quick & dirty python wrapper for the bluez-utils bccmd command to set a the btaddr of an bluetooth hci device. The native bccmd syntax is awkward, so that i found it handy to have a script which accepts normal formated btaddr as an argument and does some error checking and status infomation.

Usage:

root@linux:~/devel/tech/bluetooth/# ./setbtaddr hci0 01:0E:07:75:B7:12
Exec './bccmd  -d hci0 psset -r bdaddr 0x75 0x00 0x12 0xB7 0x07 0x00 0x0E 0x01'
hci0:   Type: USB
        BD Address: 01:0E:07:75:B7:12 ACL MTU: 192:8 SCO MTU: 64:8
        UP RUNNING
        RX bytes:86 acl:0 sco:0 events:9 errors:0
        TX bytes:33 acl:0 sco:0 commands:9 errors:0

download

H00lyshit – DIY Bluetooth Sniffer

Administrator — Wed, 04 Apr 2007 21:19:01 +0000

Since the 23c3 every interested researcher knew that is easy to compromise bluetooth sessions using the BTcrack tool.Thierry Zoller showed how it’s possible to retrieve link keys, The only problem was to get hands on a bluetooth sniffer device to get the raw bluetooth packets. Such devices are not available at consumer prices. But somehow Max Moser found a way to tranform a vanilla usb bt dongle into a bluetooth sniffer device. Don’t believe the hype…Now bluetooth security is dead.

Mini Howto:

#Backup old firmware
dfutool -d hci0 archiv backup.dfu
# Backup config
bccmd -d hci0 pslist -s 0x000F >> backup_cfg
# Check Vendor ID ( has to be 0x0a12)
bccmd -d hci0 psget -s 0x000f 0x02be
# Write new Product ID
bccmd -d hci0 psset -s 0x0002 0x02bf 0x0002

Toying with a Juicebox

Administrator — Sun, 21 Jan 2007 17:08:00 +0000

Got a new Toy. It’s a Juicebox from Mattel, a kids video and mp3 player. Actually it’s a linux based and has Samsung S3C44B0 ARM CPU, 8MB Flash and 2MB Ram. Since it has JTAG Pinouts you can use it as a really cheap ARM Dev Board. You can’t get one for around $10 at ebay. You find a lot of good info here.

Made some LCD test stuff, a 3d starfield and a simple fire demo. This code runs directly on the hardware not on top of the build-in linux. You need a JTAG cable to download the code directly into the RAM.

I’m using openocd for this:

halt 
wait_halt 
poll 
load_binary lcd_3.bin 0x0c001000 
resume 0x0c001000

download source

Nokia 6100 GLCD Port for Epson based Displays

Administrator — Tue, 09 Jan 2007 22:32:50 +0000

Ported the glcd lib to the Epson based Nokia LCDs. I tried to leave the code portable so that you can switch between the Epson and the Philips controller via a #define switch.

Actually i only changed the lowlevel hw access and init functions to deal with the Epson controller. Currently native screen rotation is implemented but i didn’t work on the hardware scrolling stuff. May i’ll do this later.

download source