ASUS RT-N56U故障已处理好！

lon***

路由器ASUS RT-N56U 无线正常，还可以登录管理界面，但是有线接口有问题，怀疑是硬件故障。

有兄弟能修的话请联系我，谢谢！

scp***

个别端口还是全部，可能交换芯片问题了，要是保内就保修

lon***

现在无法确认问题在哪里

谁知道N56U的ttl该怎么连接？

era***

https://wikidevi.com/wiki/ASUS_RT-N56U

http://wiki.openwrt.org/toh/asus/rt-n56u
无线正常、有线不通不一定是硬件问题，也可能是VLAN设置有问题，华硕不是有官方救砖工具么，无效的话再看TTL，当然在保修期内就送修好了

lon***

TTL信息如下
U-Boot 1.1.3 (Jan 12 2011 - 11:35:36)

Board: Ralink APSoC DRAM:  64 MB
relocate_code Pointer at: 837c4000
flash_protect ON: from 0xBC000000 to 0xBC02AFAF
flash_protect ON: from 0xBC030000 to 0xBC030FFF
*** Warning - bad CRC, using default environment

============================================
Ralink UBoot Version: 3.5.2.0
--------------------------------------------
ASIC 3883_MP (MAC to VITESSE Mode)
DRAM component: 1024 Mbits DDR, width 16
DRAM bus: 16 bit
Total memory: 128 MBytes
Flash component: NOR Flash
Date:Jan 12 2011  Time:11:35:36
============================================
icache: sets:512, ways:4, linesz:32 ,total:65536
dcache: sets:256, ways:4, linesz:32 ,total:32768

##### The CPU freq = 500 MHZ ####
estimate memory size =64 Mbytes

Please choose the operation:
   1: Load system code to SDRAM via TFTP.
   2: Load system code then write to Flash via TFTP.
   3: Boot system code via Flash (default).
   4: Entr boot command line interface.
   7: Load Boot Loader code then write to Flash via Serial.
   9: Load Boot Loader code then write to Flash via TFTP.
0

early Realtek giga Mac support...
GPIOMODE current: 181c
GPIOMODE writing: 181d
GPIOMODE current: 181d
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
get reg 0x1300: 837ee158
rtk_switch_init(): return 14
rtl8367m_switch_init_pre() return 14

Bootloader version: 1.0.0.6
MAC Address: 10:BF:48:3D:A5:20

GPIOMODE before: 181d
GPIOMODE writing: 181d
GPIOMODE restoring: 181d
## Checking image at bc050000 ...
   Image Name:   
   Created:      2014-07-16  22:32:55 UTC
   Image Type:   MIPS Linux Kernel Image (lzma compressed)
   Data Size:    8031022 Bytes =  7.7 MB
   Load Address: 80000000
   Entry Point:  802e6000
   Verifying Checksum ...   
3: System Boot system code via Flash.
## Booting image at bc050000 ...
   Image Name:   
   Created:      2014-07-16  22:32:55 UTC
   Image Type:   MIPS Linux Kernel Image (lzma compressed)
   Data Size:    8031022 Bytes =  7.7 MB
   Load Address: 80000000
   Entry Point:  802e6000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
No initrd
## Transferring control to Linux (at address 802e6000) ...
## Giving linux memsize in MB, 64

Starting kernel ...


LINUX started...

THIS IS ASIC
Linux version 2.6.2219 (root@asus) (gcc version 3.4.2) #1 Thu Jul 17 06:21:50 CST 2014

The CPU feqenuce set to 500 MHz
CPU revision is: 0001974c
Determined physical RAM map:
memory: 08000000 @ 00000000 (usable)
Built 1 zonelists.  Total pages: 32512
Kernel command line: console=ttyS1,57600n8 root=/dev/mtdblock4 rootfstype=squashfs noinitrd
Primary instruction cache 64kB, physically tagged, 4-way, linesize 32 bytes.
Primary data cache 32kB, 4-way, linesize 32 bytes.
Synthesized TLB refill handler (20 instructions).
Synthesized TLB load handler fastpath (32 instructions).
Synthesized TLB store handler fastpath (32 instructions).
Synthesized TLB modify handler fastpath (31 instructions).
cause = 40808000, status = 11000000
PID hash table entries: 512 (order: 9, 2048 bytes)
calculating r4koff... 001e8480(2000000)
CPU frequency 500.00 MHz
Using 250.000 MHz high precision timer.
console [ttyS1] enabled
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 126592k/131072k available (2472k kernel code, 4344k reserved, 493k data, 120k init, 0k highmem)
SLUB: Genslabs=6, HWalign=32, Order=0-1, MinObjects=4, CPUs=1, Nodes=1
Mount-cache hash table entries: 512
NET: Registered protocol family 16
RALINK_PCI_PCICFG_ADDR = 0

*************** Ralink PCIe RC mode *************

Ralink PCIe RC mode
registering PCI controller with io_map_base unset
2->[1][0][0][30]=0
5->[1][0][0][30]=fffffffe
2->[1][0][0][30]=0
5->[1][0][0][30]=0
PCI: Bridge: 0000:00:00.0
  IO window: disabled.
  MEM window: 20000000-200fffff
  PREFETCH window: disabled.
BAR0 at slot 0 = 0
bus=0, slot = 0x0
P2P(PCI) 0x00 = 08021814
P2P(PCI) 0x04 = 00100007
P2P(PCI) 0x08 = 06040001
P2P(PCI) 0x0c = 00010000
P2P(PCI) 0x10 = 00000000
P2P(PCI) 0x14 = 20100000
P2P(PCI) 0x18 = 00010100
P2P(PCI) 0x1c = 000000f0
P2P(PCI) 0x20 = 20002000
P2P(PCI) 0x24 = 0000fff0
P2P(PCI) 0x28 = 00000000
P2P(PCI) 0x2c = 00000000
P2P(PCI) 0x30 = 00000000
P2P(PCI) 0x34 = 00000040
P2P(PCI) 0x38 = 00000000
P2P(PCI) 0x3c = 000401ff
res[0]->start = 0
res[0]->end = 1ffffff
res[1]->start = 20100000
res[1]->end = 2010ffff
res[2]->start = 0
res[2]->end = 0
res[3]->start = 0
res[3]->end = 0
res[4]->start = 0
res[4]->end = 0
res[5]->start = 0
res[5]->end = 0
bus=1, slot = 0x0
dev III(PCIe)  0x00 = 30911814
dev III(PCIe)  0x04 = 00100000
dev III(PCIe)  0x08 = 02800000
dev III(PCIe)  0x0c = 00000000
dev III(PCIe)  0x10 = 20000000
dev III(PCIe)  0x14 = 00000000
dev III(PCIe)  0x18 = 00000000
dev III(PCIe)  0x1c = 00000000
dev III(PCIe)  0x20 = 00000000
dev III(PCIe)  0x24 = 00000000
dev III(PCIe)  0x28 = 00000000
dev III(PCIe)  0x2c = 30911814
dev III(PCIe)  0x30 = 00000000
dev III(PCIe)  0x34 = 00000040
dev III(PCIe)  0x38 = 00000000
dev III(PCIe)  0x3c = 000001ff
res[0]->start = 20000000
res[0]->end = 2000ffff
res[1]->start = 0
res[1]->end = 0
res[2]->start = 0
res[2]->end = 0
res[3]->start = 0
res[3]->end = 0
res[4]->start = 0
res[4]->end = 0
res[5]->start = 0
res[5]->end = 0
NET: Registered protocol family 2
Time: MIPS clocksource has been installed.
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
ralink flash device: 0x1000000 at 0x1c000000
Ralink SoC physically mapped flash: Found 1 x16 devices at 0x0 in 16-bit bank
Amd/Fujitsu Extended Query Table at 0x0040
number of CFI chips: 1
cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.
partion 3: 50000 fb0000
partion 4: 14a040 eb5fc0
Creating 5 MTD partitions on "Ralink SoC physically mapped flash":
0x00000000-0x00030000 : "Bootloader"
0x00030000-0x00040000 : "nvram"
0x00040000-0x00050000 : "Factory"
0x00050000-0x01000000 : "linux"
mtd: partition "linux" extends beyond the end of device "Ralink SoC physically mapped flash" -- size truncated to 0x7b0000
0x0014a040-0x01000000 : "rootfs"
mtd: partition "rootfs" extends beyond the end of device "Ralink SoC physically mapped flash" -- size truncated to 0x6b5fc0
mtd: partition "rootfs" doesn't start on an erase block boundary -- force read-only
Load Ralink DFS Timer Module
RT3xxx EHCI/OHCI init.
squashfs: version 3.0 (2006/03/15) Phillip Lougher
io scheduler noop registered (default)
pcie_portdrv_probe->Dev[1814:0802] has invalid IRQ. Check vendor BIOS
assign_interrupt_mode Found MSI capability
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
GPIO MODE: 181d
Ralink gpio driver initialized
software reset RTL8367M...
rtk_switch_init() return 14
HDLC line discipline: version $Revision: 1.1.1.1 $, maxframe=4096
N_HDLC line discipline registered.
Serial: 8250/16550 driver $Revision: 1.1.1.1 $ 2 ports, IRQ sharing disabled
serial8250: ttyS0 at I/O 0xb0000500 (irq = 37) is a 16550A
serial8250: ttyS1 at I/O 0xb0000c00 (irq = 12) is a 16550A
rdm_major = 254
Ralink APSoC Ethernet Driver Initilization. v3.0  256 rx/tx descriptors allocated, mtu = 1500!
GMAC1_MAC_ADRH -- : 0x000010bf
GMAC1_MAC_ADRL -- : 0x483da520
PROC INIT OK!
PPP generic driver version 2.4.2
PPP Deflate Compression module registered
MPPE/MPPC encryption/compression module registered
NET: Registered protocol family 24
PPPoL2TP kernel driver, V0.18.3
PPTP driver version 0.8.5
u32 classifier
    OLD policer on
Netfilter messages via NETLINK v0.30.
nf_conntrack version 0.5.0 (1024 buckets, 8192 max)
ipt_time loading
ip_tables: (C) 2000-2006 Netfilter Core Team
NET: Registered protocol family 1
NET: Registered protocol family 10
ip6_tables: (C) 2000-2006 Netfilter Core Team
NET: Registered protocol family 17
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
VFS: Mounted root (squashfs filesystem) readonly.
Freeing unused kernel memory: 120k freed
Warning: unable to open an initial console.
set_action 0
firmware version: 3.0.0.4.376_1665-g26e92e9
mtd productid: RT-N56U
bootloader version: RT-N56U-01-00-00-06
firmware version: 3.0.0.4
odmpid:
current FW productid: RT-N56U
current FW firmver: 3.0.0.4
clean_mode(1) clean_time(2) threshold(0)
free_caches: Start syncing...
free_caches: Start cleaning...
free_caches: waiting 2 second...
free_caches: Finish.
[1 init:init_nvram +9] init_nvram for 11
GPIOMODE before: 181d
GPIOMODE writing: 185d
config_switch(0x0105): link down all ports
power down all ports
config_switch(0x0127): ISP Profile/STB: none/0
set unknown unicast strom control rate as: 20
set unknown multicast strom control rate as: 20
set multicast strom control rate as: 20
set broadcast strom control rate as: 20
config_switch(0x021b): link up wan port(s)
rt2860v2_ap: module license 'unspecified' taints kernel.


=== pAd = c0054000, size = 851864 ===

<-- RTMPAllocAdapterBlock, Status=0
hotplug net INTERFACE=ra0 ACTION=add
register rt2860


=== pAd = c0151000, size = 725984 ===

<-- RTMPAllocTxRxRingMemory, Status=0
<-- RTMPAllocAdapterBlock, Status=0
pAd->CSRBaseAddress =0xc0140000, csr_addr=0xc0140000!
hotplug net INTERFACE=rai0 ACTION=add
[1 init:init_main +12] main loop signal/state=17
start_logger:
start_usb
Algorithmics/MIPS FPU Emulator v1.5
/ # NTFS support included
Built_for__asus_n56u_2011-11-22

start_lan 1251
update_lan_state(lan_, 0, 0)
start_lan: setting up the bridge br0
)ifconfig: name=Raeth v3.0 (eth2 flags=1043 TaskletIFUP addr=(null),SkbRecycle netmask=(null)


phy_tx_ring = 0x07286000, tx_ring = 0xa7286000

phy_rx_ring0 = 0x072d6000, rx_ring0 = 0xa72d6000
GMAC1_MAC_ADRH -- : 0x000010bf
GMAC1_MAC_ADRL -- : 0x483da520
GDMA2_MAC_ADRH -- : 0x000010bf
GDMA2_MAC_ADRL -- : 0x483da51f
eth3: ===> VirtualIF_open
CDMA_CSG_CFG = 81000007
GDMA1_FWD_CFG = C0710000
GDMA2_FWD_CFG = C0710000
start_lan: setting MAC of br0 bridge to 10:BF:48:3D:A5:20
gen ralink iNIC config
gen_ralink_config(0x0611): Main RX DESC a763f000  size = 2048
BSSID is not multiple of 4s!mac_filter[0] = 0
_ifconfig: name=rai0 flags=1043 IFUP addr=(null) netmask=(null)
RtmpChipOpsEepromHook::e2p_type=0, inf_Type=5
NVM is FLASH mode
1. Phy Mode = 9
2. Phy Mode = 9
3. Phy Mode = 9
AntCfgInit: primary/secondary ant 0/1
RTMPSetPhyMode: channel is out of range, use first channel=0
MCS Set = ff ff 00 00 01
SYNC - BBP R4 to 20MHz.l
hotplug net INTERFACE=br0 ACTION=add
hotplug net INTERFACE=eth3 ACTION=add
=====================================================
Channel 1 : Dirty = 0, False CCA = 118, Busy Time = 3591, Skip Channel = FALSE
Channel 2 : Dirty = 0, False CCA = 126, Busy Time = 3798, Skip Channel = FALSE
Channel 3 : Dirty = 0, False CCA = 126, Busy Time = 3964, Skip Channel = FALSE
Channel 4 : Dirty = 0, False CCA = 17, Busy Time = 871, Skip Channel = FALSE
Channel 5 : Dirty = 0, False CCA = 88, Busy Time = 2838, Skip Channel = FALSE
Channel 6 : Dirty = 0, False CCA = 178, Busy Time = 5445, Skip Channel = FALSE
Channel 7 : Dirty = 0, False CCA = 138, Busy Time = 4140, Skip Channel = FALSE
Channel 8 : Dirty = 0, False CCA = 96, Busy Time = 2738, Skip Channel = FALSE
Channel 9 : Dirty = 0, False CCA = 107, Busy Time = 3241, Skip Channel = FALSE
Channel 10 : Dirty = 0, False CCA = 270, Busy Time = 10241, Skip Channel = FALSE
Channel 11 : Dirty = 0, False CCA = 228, Busy Time = 6977, Skip Channel = FALSE
Channel 12 : Dirty = 0, False CCA = 155, Busy Time = 5776, Skip Channel = FALSE
Channel 13 : Dirty = 0, False CCA = 17, Busy Time = 1328, Skip Channel = FALSE
=====================================================
Rule 1 CCA value : Min Dirtiness (Include extension channel) ==> Select Channel 4
Min Dirty = 0
ExChannel = 8 , 0
BW        = 40
SYNC - BBP R4 to 20MHz.l
SYNC - BBP R4 to 20MHz.l
SYNC - BBP R4 to 20MHz.l
SYNC - BBP R4 to 20MHz.l
SYNC - BBP R4 to 20MHz.l
SYNC - BBP R4 to 20MHz.l
SYNC - BBP R4 to 20MHz.l
SYNC - BBP R4 to 20MHz.l
SYNC - BBP R4 to 20MHz.l
SYNC - BBP R4 to 20MHz.l
SYNC - BBP R4 to 20MHz.l
到了这里就开始重启了，一直这样子，LAN口和WLAN口都没反应
请大家帮忙看看撒，谢谢了

zwweil***

本地连接显示断开还是？

lon***

zwweilaitest 发表于 2014-11-13 18:32
本地连接显示断开还是？

本地连接显示断开

zwweil***

坏了原件，或者CPU虚焊。

lon***

最终发现是电源问题，原配电源是19V,因为坏了换了个5V的电源测试的，现在换了新的19V电源就OK了。

谢谢大家了！

lon***

还比较稳定，信号感觉和4530R差不多。
USB速度不错，比4530R要强一些。

ant***

电源电压问题，我也是醉了

lozy***

兄弟看到我的站内信麻烦回复一下，谢谢。

lon***

lozy32000 发表于 2015-1-15 21:00
兄弟看到我的站内信麻烦回复一下，谢谢。

图上面很清楚了，不过有一点需要注意的是波特率比较少见，我不记得了，需要多试几次！

lozy***

longren 发表于 2015-1-16 09:48
图上面很清楚了，不过有一点需要注意的是波特率比较少见，我不记得了，需要多试几次！

哥们谢谢你了，我就是想确定一下，我试了试不通，觉得可能是接线错误，这下放心。对了还有一个问题，VCC线用接上吗？其他的路由一般这个线不接的。波特率我自己试试吧。

nn***

lozy32000 发表于 2015-1-17 09:18
哥们谢谢你了，我就是想确定一下，我试了试不通，觉得可能是接线错误，这下放心。对了还有一个问题，VCC ...

VCC不能接，烧TTL的