>
>>>
>>> lo compri su internet o te lo fai con saldatore alla mano, stagno,
>>> circuito, e componenti vari come già ti dicevo io, ora guardati:
>>>
>>>
>>> http://wiki.openwrt.org/OpenWrtDocs/Hardware/D-Link/DSL-502T?highlight=%28OpenWrtDocs/Hardware%29
>>> 1.6. How to Debrick
>>>
>>> You can generally use the methods on D-Link's site, or just change your
>>> mtd0/1/4 variables back to defaults and upload the dlink firmware.
>>>
>>> But if you've accidentally destroyed your mtd2 adam2 bootloader or mtd3
>>> config file you will need a JTAG cable.
>>>
>>> Also see this (old) thread for more details - it may be out of date:
>>> http://forum.openwrt.org/viewtopic.php?id=7742
>>>
>>> 1.6.0.1. How to make a JTAG cable
>>>
>>> I grabbed one from ebay but you can make your own with 4/5 resistors, pin
>>> schematics are here:
>>>
>>> http://wiki.openwrt.org/AR7Port
>>> http://wiki.openwrt.org/OpenWrtDocs/Customizing/Hardware/JTAG_Cable
>>>
>>> The cable I purchased from Ebay was for the WRT54G, it had a 12 pin
>>> header, whereas my router had an already soldered 14 pin header, the WRT54G
>>> uses EJTAG 2.0 and the AR7 uses EJTAG 2.6, to make the JTAG cable work I
>>> simple connected pin 1 TRST with pin 8 VCC/VIO/VRED via a 100 ohm resistor
>>> (I didn't bother soldering it on) and then placed the 12 pin JTAG on top
>>> squashing it into place, bending back the extra 2 pins.
>>>
>>> My pins are numbered as so:
>>> 1 (TRST) - 14
>>> 2 - 13
>>> 3 - 12
>>> 4 - 11
>>> 5 - 10
>>> 6 - 9
>>> 7 - 8 (VIO/VCCC/VREF)
>>>
>>> 1.6.1. Bios settings
>>>
>>> My BIOS settings for my printer port were: ECP+EPP, 0x378.
>>>
>>> 1.6.2. Using the Debrick utility to restore the bootloader and config
>>>
>>> Once you do this you can use
>>> HairyDairyMaids<http://wiki.openwrt.org/HairyDairyMaids>debrick utility
>>> 4.8. Get it here:
>>> http://downloads.openwrt.org/utils/
>>>
>>> Under Windows: load giveio.sys by running loaddrv.exe and adding
>>> 'giveio.sys' to the end of the line and clicking install+start.
>>>
>>> Under Linux (Ubuntu): Get the build essentials package, compile the
>>> binary using 'make' from the folder you extracted the files to, then you
>>> need to do this to read the parallel port: rmmod lp, modprobe parport, mknod
>>> /dev/parport0 c 99 0
>>>
>>> You can now do ./wrt54g -probeonly to test if the unit can be detected
>>>
>>> Grab Olegs Adam2 bootloader: http://star.oai.pp.ru/jtag/adam2-oleg.zip
>>>
>>> rename the adam2 file to CUSTOM.BIN then do:
>>>
>>> ./wrt54g -flash:custom /noerase /nobreak /nodma /window:0x90000000
>>> /start:0x90000000 /length:0x10000 /nocwd
>>>
>>> Grab mtd3 config http://mcmcc.bat.ru/dlinkt/restore_mtd3_50xT.rar
>>>
>>> rename this to CUSTOM.BIN then do:
>>>
>>> ./wrt54g -flash:custom /noerase /nobreak /nodma /window:0x903f0000
>>> /start:0x903f0000 /length:0x10000 /nocwd
>>>
>>> You may not have to do /noerase /nobreak or /nocwd but /nodma is required
>>>
>>>
>>> Once this is done, set you lan IP as 10.8.8.1 subnet 255.0.0.0 (on Linux
>>> u need to do ifconfig eth0 10.8.8.1 to set your IP) and then reboot the
>>> router, ftp into 10.8.8.8 21 using the command prompt FTP (not anything
>>> else) and you will see an adam2 prompt (gratz!).
>>>
>>> ping 10.8.8.8 to see if adam2 is working
>>>
>>> 1.6.3. Uploading the original firmware
>>>
>>> Now that ADAM2 is working, you can use adam2flash-502T.pl to install
>>> firmware of your choice, including the original D-Link firmware. See above.
>>>
>>> 1.7. Acknowlegements
>>>
>>> (Moved from the top)
>>>
>>> Thanks Strider for starting the page off for me.
>>>
>>> Thank you nbd and all the OpenWRT developers for making this work-Z3r0
>>> (not the z3r0 on IRC)
>>>
>>> Thank you Mr Chandler for fixing some of the formatting.
>>> Note, as of 17th May '07 I am no longer maintaining this page as I no
>>> longer have a DSL-502T, if you would like to update this page please feel
>>> free to. (Z3r0)
>>>
>>>
>>>
>>>
>>
>
