2009/2/10 paolo del bene <pdb.free.softw...@gmail.com>
> 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 Also see this (old) thread for more details - it may be out of date: 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) >>>> >>>> >>>> >>>> >>> >> >
