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toh:comfast:cf-e120a

COMFAST CF-E120A

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The COMFAST CF-E120A is an outdoor 5 GHz wireless CPE. It is based on the Atheros AR9344 SoC, and features two RJ45 10/100 Mbps Ethernet ports with PoE in and a 300 Mbps 5 GHz 802.11b/g/n radio connected to an internal 2T2R 11 dBi atenna.

CF-E120A side view (image from comfast.com.cn) CF-E120A left view (image from comfast.com.cn) CF-E120A front view (image from comfast.com.cn) CF-E120A right view (image from comfast.com.cn)

Supported Versions

Hardware Highlights

Installation

Flash Layout

FIXME Find out flash layout, then add the flash layout table here (copy, paste, modify the example).

Please check out the article Flash layout. It contains examples and explanations that describe how to document the flash layout.

From the stock firmware web GUI

The stock firmware is a customized OpenWrt version. Plain OpenWrt can be installed from the web interface; just upload the sysupgrade image and flash it.

Note: the router will keep the previous configuration, including the stock password. After flashing, enter failsafe mode to reset it.

From U-Boot via recovery web page

The U-boot bootloader of this device contains a recovery HTTP server from which to upload the firmware.

Instructions

  1. Push the reset button (and keep it pressed) with the device off
  2. Power the device on (keep the reset button pressed)
  3. Keep pressing the reset button for 8~9 seconds, the LEDs will blink during this time
  4. Release reset button
  5. Manually configure your computer to 192.168.1.X/24 (e.g.: 192.168.1.2/24)
  6. Head to the recovery page at http://192.168.1.1
  7. Upload the firmware

From U-Boot via TFTP

You can read the generic OpenWrt instructions here.

Specific values needed for TFTP

Bootloader tftp server IPv4 address 192.168.1.10/24
Bootloader MAC address (special) N/A
Firmware tftp image Latest OpenWrt release sysupgrade image. Note: remane it to “firmware_auto.bin”
TFTP transfer window 1 seconds
TFTP window start approximately 5 seconds after power on

Upgrading OpenWrt

You can read the general OpenWrt upgrading instructions here.

LuCI web upgrade process

  • Browse to http://192.168.1.1/cgi-bin/luci/admin/system/flashops LuCI's upgrade URL (replace 192.168.1.1 with the router's IP)
  • Upload image file for sysupgrade to LuCI
  • Wait for reboot

Terminal Upgrade Process

If you don't have a GUI (LuCI) available, you can alternatively upgrade via the command line.

sysupgrade

  • Login as root via SSH on your router, then enter the following commands:
cd /tmp
wget http://downloads.openwrt.org/snapshots/trunk/XXX/xxx.abc
sysupgrade /tmp/xxx.abc

Debricking

Failsafe mode

Basic configuration

Basic configuration After flashing, proceed with this.
Set up your Internet connection, configure wireless, configure USB port, etc.

Specific Configuration

FIXME Please fill in real values for this device, then remove the EXAMPLEs

Network interfaces

The default network configuration is:

Interface Name Description Default configuration
br-lan EXAMPLE LAN & WiFi EXAMPLE 192.168.1.1/24
vlan0 (eth0.0) EXAMPLE LAN ports (1 to 4) EXAMPLE None
vlan1 (eth0.1) EXAMPLE WAN port EXAMPLE DHCP
wl0 EXAMPLE WiFi EXAMPLE Disabled

Switch Ports (for VLANs)

FIXME Please fill in real values for this device, then remove the EXAMPLEs

Numbers 0-3 are Ports 1-4 as labeled on the unit, number 4 is the Internet (WAN) on the unit, 5 is the internal connection to the router itself. Don't be fooled: Port 1 on the unit is number 3 when configuring VLANs. vlan0 = eth0.0, vlan1 = eth0.1 and so on.

Port Switch port
Internet (WAN) EXAMPLE 4
LAN 1 EXAMPLE 3
LAN 2 EXAMPLE 2
LAN 3 EXAMPLE 1
LAN 4 EXAMPLE 0

Buttons

The device has a push button, labeled “RST”, and a two-positions slide switch, labeled “STA AP. The push button is used to reset the device, restore it to factory defaults or enter into failsafe mode. The slide switch is meant to change between station or access point using the stock firmware.

Button GPIO port Event
RST 17 reset
Slide switch GPIO port Values Event
STA AP 1 0: AP. 1: STA none

Hardware

Info

General
Brand COMFAST
Model CF-E120A
Versions v3
Device Type WiFi Router
Availability Available 2019
Comments - general
OpenWrt Support
Supported Since Revision
Supported Since Release
Supported Current Release snapshot
Unsupported
Hardware
Instruction set
Sub Instruction Set
Bootloader U-Boot
Target ath79
System-On-Chip
CPU MHz 535
Flash MB 16
RAM MB 64
Network
Ethernet 100M ports 2
Ethernet Gbit ports -
Switch Atheros AR9344
Modem -
VLAN Yes
Comments - network ports 2x PoE in 9-24 VDC
Wireless
WLAN 2.4GHz -
WLAN 5.0GHz a/n
WLAN Hardware Atheros AR9340 Rev:3
Detachable Antennas -
Comments - WLAN 2T:2R 11 dBi integrated anntena
Interfaces
USB ports -
SATA ports -
Serial Yes
JTAG ¿
Comments - USB & SATA ports
Misc
LED count 8
Button count 1
Power supply ¿
Links
Forum Topic URL
WikiDevi URL
OEM device homepage URL http://¿
Firmware OEM Stock URL http://¿
Firmware OpenWrt Install URL
Firmware OpenWrt Upgrade URL
Edit the underlying data View/Edit data

Photos

Front:
Insert photo of front of the casing

Back:
Insert photo of back of the casing

Backside label:
Insert photo of backside label

Opening the case

Note: This will void your warranty!

FIXME Describe what needs to be done to open the device, e.g. remove rubber feet, adhesive labels, screws, …

  • To remove the cover and open the device, do a/b/c

Main PCB:
Insert photo of PCB

Serial

port.serial general information about the serial port, serial port cable, etc.

How to connect to the Serial Port of this specific device:
Insert photo of PCB with markings for serial port

FIXME Replace EXAMPLE by real values.

Serial connection parameters
for COMFAST CF-E120A v3
EXAMPLE 115200, 8N1

JTAG

port.jtag general information about the JTAG port, JTAG cable, etc.

How to connect to the JTAG Port of this specific device:
Insert photo of PCB with markings for JTAG port

Bootlogs

U-Boot (bootloader)

********************************************* * U-Boot 1.1.4 (Apr 10 2018) * ********************************************* U-Boot for AR9344 DRAM: 64 MB DDR2 16-bit FLASH: Unknown type (using only 16 MB) Please, send request to add support for your FLASH - JEDEC ID: 0x1C7017 CLOCKS: 535/400/200/25 MHz (CPU/RAM/AHB/SPI) ** Warning: bad env CRC, using default, use 'saveenv' to save it in FLASH Link down: eth0 Ethernet mode (duplex/speed): 1/1000 Mbps Using eth1 device ping failed Hit any key to stop autobooting: 0 Booting image at: 0x9F020000


U-Boot HTTP recovery


OEM (stock firmware) bootlog


OpenWrt bootlog

COPY HERE THE BOOTLOG ONCE OPENWRT IS INSTALLED AND RUNNING


Notes

Space for additional notes, links to forum threads or other resources.

Tags

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toh/comfast/cf-e120a.txt · Last modified: 2019/10/03 08:28 by tmomas