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toh:asus:rt-n56u [2012/12/12 10:46]
toh:asus:rt-n56u [2016/01/11 01:52] (current)
tmomas [How to Open] pictures resized
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 +====== Asus RT-N56U ======
 +  * there is //​preliminary//​ support since [[https://​dev.openwrt.org/​changeset/​30498/​trunk|R30498]].
 +  * there is more support since [[https://​dev.openwrt.org/​changeset/​31399/​trunk|R31399]]
 +  * full support with the barrier breaker stable release [[https://​dev.openwrt.org/​milestone/​Barrier%20Breaker%2014.07]]
  
 +Wireless network seems to be buged if you want to run both interfaces at the same time, see https://​dev.openwrt.org/​ticket/​17659 . A workaround is:
 +  - Set the country code to a specific country on BOTH the 5 GHz radio AND the 2.4 GHz radio.
 +  - Go to System > Startup, scroll down to Local Startup, add the line "sleep 2 && /​etc/​init.d/​network restart"​ before the line "exit 0", and click Submit.
 +  - Click System > Reboot > Perform reboot.
 +**Note:** latest trunk has this problem fixed. (tested r44618 and up)
 +
 +===== Supported Versions =====
 +^ Version/​Model ^ Launch Date ^ S/N ^ OpenWrt Version Supported ^ Model Specific Notes ^
 +| v1   | 2011 | - | 14.07 Barrier Braker | - |
 +| v2   | May 2015 | - | Unsupported | Known as RT-N56U B1; sold as regular RT-N56U, box and device indistinguishable from v1 |
 +
 +===== Hardware Highlights =====
 +^ Version/​Model ^ CPU ^ Ram ^ Flash ^ Network ^ USB ^ Serial ^ JTag ^
 +| v1 | Ralink MIPS 74Kc@533MHz | 128MiB | 8MiB | 5 x 1000 | Yes 2 x USB 2.0 | Yes | Yes |
 +| v2 | MediaTek MIPS 1004Kc@880MHz | 128MiB | 16MiB | 5 x 1000 | Yes 2 x USB 2.0 | Yes | Unknown |
 +
 +===== Installation =====
 +There are two ways to install OpenWrt. Over the WebUI and TFTP.
 +
 +==== Download ====
 +Either (recommended if you want a stable system) download a stable version of Barrier Braker [[https://​downloads.openwrt.org/​barrier_breaker/​14.07/​ramips/​rt3883/​openwrt-ramips-rt3883-rt-n56u-squashfs-factory.bin|squashfs-factory.bin]] for the initial flash. Use a "​[[https://​downloads.openwrt.org/​barrier_breaker/​14.07/​ramips/​rt3883/​openwrt-ramips-rt3883-rt-n56u-squashfs-factory.bin|sysupgrade]]"​ file for any future updates if already on openwrt.
 +
 +Chaos Calmer RC2;
 +[[http://​downloads.openwrt.org/​chaos_calmer/​15.05-rc2/​ramips/​rt3883/​openwrt-15.05-rc2-ramips-rt3883-rt-n56u-squashfs-factory.bin|CC RC2 Factory.bin]];​
 +[[http://​downloads.openwrt.org/​chaos_calmer/​15.05-rc2/​ramips/​rt3883/​openwrt-15.05-rc2-ramips-rt3883-rt-n56u-squashfs-sysupgrade.bin|CC RC2 sysupgrade.bin]]
 +
 +
 +Or (recommended if you need a system with all the newest features and do not care if the system may break) download latest snapshot of Chaos Calmer [[https://​downloads.openwrt.org/​snapshots/​trunk/​ramips/​rt3883/​openwrt-ramips-rt3883-rt-n56u-squashfs-factory.bin|squashfs-factory.bin]] for the initial flash. Use a "​[[https://​downloads.openwrt.org/​snapshots/​trunk/​ramips/​rt3883/​openwrt-ramips-rt3883-rt-n56u-squashfs-sysupgrade.bin|sysupgrade]]"​ file for any future updates if already on openwrt.
 +
 +**Warning**:​ Do NOT flash snapshot image of Chaos Calmer for initial flashing as nothing is ON in snapshot image. This means unless you have a serial connected you will not be able to access the router. You can, however, easily update from a stable release to a daily snapshot, but make sure "Keep Settings"​ checkbox is checked.
 +
 +Alternative trunk builds (by moonman) with Luci included. Compiled with //​-march=74kc//​ instread of //-mips32r -mtune=74kc//:​ https://​olegtown.pw/​openwrt/​
 +As trunk advances some packages become broken and don't build. Be sure to check "​broken_packages"​ directory to make sure a particular build is not missing packages that you need.
 +
 +==== Install via WebUI ====
 +  * Log in your routers admin interface
 +  * Administration -> Firmware Upgrade -> Choose **openwrt-ramips-rt3883-rt-n56u-squashfs-factory.bin**.
 +
 +==== Install via TFTP ====
 +  * Unplug router power cord
 +  * keep reset button down
 +  * plug the power cord back 
 +  * release the reset button.
 +  * led blinks slowly when ready for flashing
 +  * Assign your PC 192.168.1.11/​24 on eth0
 +  * tftp 192.168.1.1
 +  * tftp> bin
 +  * tftp> put openwrt-ramips-rt3883-rt-n56u-squashfs-factory.bin
 +  * wait for it to stop flashing and then telnet to 192.168.1.1 or visit 192.168.1.1 with your browser to access the LUCI interface
 +
 +==== Recovery ====
 +//​untested// ​ but should work
 +
 +  -  Download & Install the asus "​Firmware Restoration"​ from asus website
 +  -  Download the factory image from asus
 +  -  Enter Recovery Mode
 +  -  Unplug Router
 +  -  Hold Reset Button and Plug in Router
 +  -  Release button when front LED flashes slowly
 +  -  Use the following to set up your TCP/IP settings:IP address: 192.168.1.x Subnet mask: 255.255.255.0
 +  -  Select firmware *.trx and upload
 +
 +===== Hardware =====
 +==== Info ====
 +| **[[wp>​Instruction set|Architecture]]:​** ​   | [[wp>​MIPS architecture|MIPS]] |
 +| **Vendor:​** ​         | [[wp>​Ralink]] ​ |
 +| **[[doc:​techref:​Bootloader]]:​** ​    | U-Boot |
 +| **[[doc:​hardware:​soc|System-On-Chip]]:​** ​ | RT3662 (MIPS 74Kc V4.12) |
 +| **[[doc:​hardware:​cpu|CPU]]/​Speed** ​       | MIPS 74Kc @ 500 Mhz |
 +| **Flash-Chip:​** ​     |  |
 +| **Flash size:​** ​     | 8 MB |
 +| **RAM:​** ​            | 128 MiB   |
 +| **Wireless:​** ​       | Ralink RT3662 + RT3092 |
 +| **Ethernet:​** ​       | RealTek RTL8367M Gigabit w/ vlan support [[doc:​techref:​swconfig]] |
 +| **USB:​** ​            | Yes 2 x 2.0     |
 +| **[[doc:​hardware:​port.serial|Serial]]:​** ​         | [[#​Serial|Yes]] 57600 |
 +| **[[doc:​hardware:​port.jtag|JTAG]]:​** ​           | [[#​JTAG|Yes]] ​ |
 +
 +==== How to Open ====
 +Remove the screws first, then use your nails.
 +
 +{{media:​asus:​rt-n56u:​rt-n56u_back_cover.png?​0x300|}}
 +
 +{{media:​asus:​rt-n56u:​rt-n56u_front.png?​0x300|}}
 +{{media:​asus:​rt-n56u:​rt-n56u_back.png?​0x300|}}
 +
 +==== Ethernet Ports ====
 +The ports are numbered starting from the USB socket side, Ports 0,1,2 and 3 are LAN and port 4 is the WAN port.
 +
 +==== Serial ====
 +<​code>​
 +------------------
 +|    XXXX        | GND RX TX 3.3
 +|                |
 +|                |
 +|                |
 +|----------------|
 +</​code>​
 +57600,8,n,1
 +
 +the diagram is when viewing the LED side of the board.
 +===== Tags =====
 +[[meta:​tags|How to add tags]]
 +
 +{{tag>​ramips rt3662 GigabitEthernet 5Port 2NIC USB 2USB 128RAM 16Flash MIPS MIPS32 802.11abgn_simultan}}