NEC Aterm WR8750N

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abgn (AN600)
AN600 Wireless Router
Homepage Product page
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
Brand • Model • Rev NEC Aterm WR8750N
FCC ID none specified
Type wireless router
CPU1 checkY Atheros AR9344
CPU1 Type MIPS 74Kc
CPU1 Speed 560 MHz
Flash1 Chip Macronix MX25L6406EMI-12G
Flash1 Size 8 MiB 8,388,608 B <br />65,536 Kib <br />8,192 KiB <br />64 Mib <br />0.00781 GiB <br /> (SPI NOR)
RAM1 Size 128 MiB 134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br /> (DDR2)
RAM1 Chip SK hynix H5PS5162GFR-S6C x 2
ETH chip1 Atheros AR9344
Switch Atheros AR8327
Ethernet Port Count 1-1GbE-WAN
4-1GbE-LAN
Wired Standard IEEE 802.3i/3u/3ab

802dot11 OUI: 1C:B1:7F (2 E, 2 W)
Ethernet OUI: 1C:B1:7F (2 E, 2 W)

Stock bootloader U-Boot
Expansion IF types USB 2.0
USB ports 1
USB Hub Compatible Untested
Power 12 VDC, 1.5 A
Connector type barrel
Serial Port (UART) yes, 3.3V TTL, (9600 8N1)
Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Radio 1
Chip1 Atheros AR9344
Wireless interface OUI 1C:B1:7F
Antenna Connector Type none specified
MIMO status 2x2:2
Wireless Standard IEEE 802.11b/g/n
802.11n up to 300 Mbps
802.11g up to 54 Mbps
802.11b up to 11 Mbps
WiFi Operating Frequency 2.4 GHz
Radio 2
Chip1 Atheros AR9382
Wireless interface OUI 1C:B1:7F
Antenna Connector Type none specified
MIMO status 2x2:2
Wireless Standard IEEE 802.11a/n
802.11n up to 300 Mbps
802.11a up to 54 Mbps
WiFi Operating Frequency 5 GHz

For a list of all currently documented Atheros (QCA) chipsets with specifications, see Atheros.

For a list of all currently documented NEC devices with specifications, see NEC.

• 300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.),
• 300 Mbps - 2SS 5GHz 802.11n (40MHz chan.) = AN600 class

Flashing

Flashing OpenWrt

Target: ath79
Subtarget: tiny
Package architecture: mips_24kc
Supported Since Commit
Support started version: 24.10.0
Current supported version: 25.12.0
LAN Hardware: Atheros AR8327
WLAN Hardware: Atheros AR9344, Atheros AR9382
WLAN Comment: MIMO 2x2:2 on both bands
Installation method(s):
see git-commit
Recovery method(s):
see git-commit
Comment:
USB NEC uPD720114
git • >> 
ath79: add support for NEC Aterm WR8750N
NEC Aterm WR8750N is a 2.4/5 GHz band 11n (Wi-Fi 4) router, based on
AR9344.

Specification:

- SoC             : Atheros AR9344
- RAM             : DDR2 128 MiB (2x SK hynix H5PS5162GFR-S6C)
- Flash           : SPI-NOR 8 MiB (Macronix MX25L6406EMI-12G)
- WLAN            : 2.4/5 GHz 2T2R
  - 2.4 GHz       : Atheros AR9344 (SoC)
  - 5 GHz         : Atheros AR9382
- Ethernet        : 5x 10/100/1000 Mbps
  - switch        : Atheros AR8327
- LEDs/Keys (GPIO): 10x/4x
  - note          : all LEDs are controlled by ath9k chip (AR9382)
- UART            : through-hole on PCB
  - assignment    : 3.3V, GND, NC, TX, RX from tri-angle marking
  - settings      : 9600n8
- USB             : 1x USB 2.0 Type-A
  - hub (internal): NEC uPD720114
- Power           : 12 VDC, 1.5 A (Max. 16 W)
- Stock OS        : NetBSD based

Flash instruction using initramfs-factory.bin image (StockFW WebUI):

1. Boot WR8750N with router mode normally
2. Access to the WebUI ("http://aterm.me/" or "http://192.168.0.1/") on
   the device and open firmware update page ("ファームウェア更新")
3. Select the OpenWrt initramfs-factory.bin image and click update
   ("更新") button
4. After updating, the device will be rebooted and booted with OpenWrt
   initramfs image
5. On the initramfs image, upload (or download) uboot.bin and
   sysupgrade.bin image to the device
6. Replace the bootloader with a uboot.bin image

   mtd write <uboot.bin image> bootloader

7. Perform sysupgrade with a sysupgrade.bin image

   sysupgrade <sysupgrade image>

8. Wait ~120 seconds to complete flashing

Flash instruction using initramfs-factory.bin image (bootloader CLI):

 1. Connect and open serial console
 2. Power on WR8750N and interrupt bootloader by ESC key
 3. Login to the bootloader CLI with a password "chiron"
 4. Start TFTP server by "tftpd" command
 5. Upload initramfs-factory.bin via tftp from your computer

   example (Windows): tftp -i 192.168.0.1 PUT initramfs-factory.bin

 6. Boot initramfs image by "boot" command
 7. On the initramfs image, back up the stock bootloader and firmware if
   needed
 8. Upload (or download) uboot.bin and sysupgrade.bin image to the device
 9. Replace the bootloader with a uboot.bin image
10. Perform sysupgrade with a sysupgrade.bin image
11. Wait ~120 seconds to complete flashing

Notes:

- All LEDs are connected to the GPIO controller on the ath9k chip
  (AR9382) and controlled by it. Those LEDs are probed after probing of
  ath9k chip, so they cannot be handled as status LEDs of OpenWrt while
  booting.

- A reset pin of the internal USB hub is connected to the GPIO
  controller of the ath9k chip, like LEDs above. That hub will be
  detected after probing of the ath9k chip.

- The stock bootloader requires an unknown filesystem on firmware area
  in the flash. Booting of OpenWrt from that filesystem cannot be
  handled, so the bootloader needs to be replaced to mainline U-Boot
  before OpenWrt installation.

MAC Addresses:

LAN    : 1C:B1:7F:xx:xx:00 (config,  0x6 (hex))
WAN    : 1C:B1:7F:xx:xx:01 (config,  0xc (hex))
2.4 GHz: 1C:B1:7F:xx:xx:02 (config,  0x0 (hex) / art, 0x1002 (hex))
5 GHz  : 1C:B1:7F:xx:xx:03 (config, 0x12 (hex) / art, 0x5002 (hex))
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