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dns-321 2013/01/27 06:03 dns-321 2017/09/06 18:38 current
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===== Pictures ===== ===== Pictures =====
{{hardware:dns321-flashchip.jpg?w=120&h=90|Flash}} {{hardware:dns321-processor.jpg?w=120&h=90|CPU}} {{hardware:dns321-ram.jpg?w=120&h=90|RAM Module}} {{hardware:dns321-flashchip.jpg?w=120&h=90|Flash}} {{hardware:dns321-processor.jpg?w=120&h=90|CPU}} {{hardware:dns321-ram.jpg?w=120&h=90|RAM Module}}
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===== Serial Console ===== ===== Serial Console =====
{{ hardware:dns321-serial.jpg?w=120&h=90|Flash}} {{ hardware:dns321-serial.jpg?w=120&h=90|Flash}}
-A serial port is available for advanced troubleshooting and flash recovery. A simple cable can be made using a nokia ca-42 cable as discribed [[http://buffalo.nas-central.org/wiki/Use_a_Nokia_Serial_Cable_on_an_ARM9_Linkstation|here]]. The cables can be purchased on eBay quite cheap. Other options for building a serial cable are available [[http://dns323.kood.org/hardware%3Aserial|here]].+A serial port is available for advanced troubleshooting and flash recovery. A simple cable can be made using a nokia ca-42 cable as described [[http://buffalo.nas-central.org/wiki/Use_a_Nokia_Serial_Cable_on_an_ARM9_Linkstation|here]]. The cables can be purchased on eBay quite cheap. Other options for building a serial cable are available [[http://dns323.kood.org/hardware%3Aserial|here]].
Pinout: Pinout:
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Serial breakout code: 5784468 \\ Serial breakout code: 5784468 \\
U-boot autoboot stop: <Space> + <1>\\ U-boot autoboot stop: <Space> + <1>\\
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 +
 +==== Recovery via serial ====
 +
 +Some info was taken from [[http://www.cyrius.com/debian/orion/d-link/dns-323/recovery.html|here]]:
 +
 +The following is done with Ubuntu 12.04
 +
 +1. Install the splitdns323fw package.
 +  $ sudo apt-get install dns323-firmware-tools
 +
 +2. Then download the 1.03 FW package from D-Link:
 +  ftp://ftp.dlink.com/Multimedia/dns321/Firmware/
 +
 +3. Unzip it. Then split the firmware (in the directory you unzipped it):
 +  $ splitdns323fw -k 103kernel -i 103initrd -d 103defaults dns321_fw_103
 +
 +4. If kermit is not installed do it now:
 +  $ sudo apt-get install ckermit
 +
 +5. Setup your kermit config file, save the following as a .kermrc file in your home folder (note: the line "set line" will need to be set to your serial port):
 +  $ gedit ~/.kermrc
 +
 +  set line /dev/ttyACM0
 +  set speed 115200
 +  set carrier-watch off
 +  set flow-control none
 +  set handshake none
 +  set prefixing all
 +  set streaming off
 +  set parity none
 +
 +6. Run kermit, start this initally with the dns-321 box already running and your cable connected:
 +  $sudo kermit
 +
 +7. Once inside kermit hit the <c> key to get to the console. Hit <enter> a couple times.
 +  !!if you are running stock firmware type 5784468 and hit <enter>!!
 +
 +8. You should now be at a # prompt:
 +  #
 +
 +9. Now enter the reboot command. Be prepared to do the next step quickly as you will only have 3 or so seconds to complete it..
 +  # reboot
 +
 +10. You will now see something similar to this
 +  USB 0: host mode
 +  USB 1: host mode
 +  Net:  egiga0 [PRIME]
 +  Hit any key to stop autoboot:
 +press <space> + <1> this will exit the autoboot sequence.
 +
 +11. At this point you should be at a boot prompt similar to the following:
 +  Marvell>>
 +
 +12. Now you can enter a multitude of commands here (? shows all commands available). For recovery purposes we only need three commands, see #13, #15 and #17.
 +
 +13. Flash the kernel image via uboot:
 +
 +  Marvell>> loadb k
 +
 +you will get this in response:
 + 
 +  ## Ready for binary (kermit) download to 0x00400000 at 115200 bps..
 +
 +at this point you will need to hit
 +
 +  <ctrl>+<\> then <c>
 +
 +then you will need to upload the kernel file
 +  send 103kernel
 +
 +you should now see a screen showing transfer status. Once it completes (it will take a good 5 minutes or so) move on to #14 .
 +
 +14. Verify that the kernel was sent successfully:
 +hit <c> to go to the console and make sure the image in 13 was accepted ok. You should see   
 +  Kernel Size = 1554936
 +  Copy to Flash... done 
 +note: Size might be different!
 +
 +15. Flash the ramdisk image via uboot:
 +
 +  Marvell>> loadb r
 +
 +you will get this in response:
 +
 +  ## Ready for binary (kermit) download to 0x00400000 at 115200 bps..
 +
 +at this point you will need to hit
 +
 +  <ctrl>+<\> then <c>
 +
 +then you will need to upload the ramdisk file
 +  send 103initrd
 +
 +you should now see a screen showing transfer status. Once it completes (it will take a good 15 minutes or so) move on to #16 .
 +
 +16. Verify that the ramdisk was sent successfully:
 +hit <c> to go to the console and make sure the image in 15 was accepted ok. You should see:
 +
 +    Ramdisk Size = 8935844
 +    Copy to Flash... done
 +note: Size might be different!
 +
 +17. Congrats your now back to stock! To start booting you new flash image type:
 +
 +    Marvell>> boot
===== Alternative Firmware ===== ===== Alternative Firmware =====

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