[Lefinnois.net] @#$&*(&^%$#@... Because i can...

A morning like others... But with a jump to the post office. Something wait for me. A box. In this box... La Fonera 2.0 devel. Happy morning !

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The world is now full of Fonera(s). 1.0, 1.1, plus, 2.0.... Aaaahhhhhh. Ok. Let's resume :

• FON2100 aka La Fonera 1.0 :
  Atheros AR2315 180MHz, 8MB/16MB, 1 Ether (metallic schield on PCB, 10 pins console connector)
• FON2200 aka La Fonera 1.1 :
  Atheros AR2315 180MHz, 8MB/16MB, 1 Ether (no schield on PCB, 4 pins console connector)
• FON2201 aka La Fonera+ :
  Atheros AR2315 180MHz, 8MB/16MB, 2 Ether (switch Marvell 88E6060).
• FON2202 aka La Fonera 2.0 :
  Atheros AR2315 180MHz, 8MB/32MB, 2 Ether (switch Marvell 88E6060) + USB 2.0.

Yes ! The last OpenWrt snapshot (20080910 (update : 20081015)) just work fine ! Happy time ! Just get rootfs (openwrt-atheros-root.jffs2-64k) and kernel (openwrt-atheros-vmlinux.lzma) then flash it with RedBoot and console adaptater. Read the rest of this entry »

La Fonera is a really nice toy. I have already deacivated serial console because of playing with IR receiver. So why not playing with serial 128*128 LCD ? Read the rest of this entry »

Using DIY IR receiver with GNU/Linux is quite simple. All you need is a TSOP receiver, a diode, a resistor and a78L05 regulator as explained here. But this wont work with USB/serial adapter and it need a kernel module to directly drive DCD line.

But there is Paul Fox's avrlirc project, using AVR Attiny2313 to connect IR receiver to the serial RX line. It can be used with USB/serial and embedded system with simple serial port like... La Fonera.

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There is a new Fon router : La fonera+ (plus). This router is quite similar than the classical Fonera except that's it include two ethernet interfaces. This can be very usefull for a lot of things. Can OpenWrt Kamikaze 7.07 run on Fonera+ ? Yes, but not well. Here is my first try...

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Update from OpenWrt Kamikaze 7.06 to 7.07 give a lot of good things. One of them is linux 2.6.21.5. The driver for the i2c bus adapter using GPIO need update. Here is.

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While trying to update my Fonera to d'OpenWrt Kamikaze 7.07, i got :

 Can't locate c0000(786432) bytes free in FLASH

In others words : unable to allocate 786432 bytes in flash memory, not enough space. There is a kernel size problem with openwrt-atheros-2.6-vmlinux.lzma. Olds OpenWrt Kamikaze kernels are 720896 bytes long (0xB0000) but news ones are bigger : 786432 bytes long (0xC0000). We need to play with RedBoot's images directory.

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Here is the PCB of i2c adapter for La Fonera.

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The goal for my first try to use Fonera's GPIO is to get i2c working on the router. And now, it's done. Kernel module and user space programs are here.

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