Netgear DG834G v3

The Netgear DG834G v3 is an AR7-based ADSL router with 802.11g wireless and ADSL2+ support. It has a 4-port switch, and the wireless antenna is connected to an RP-SMA connector at the rear.

Supported Versions

Version/Model Launch Date S/N OpenWrt Version Supported Model Specific Notes
DG834 v3 ? ? ?
DG834G v3 ? ? ? wireless
DG834B v3 ? ? ? annex B (germany)
DG834GB v3 ? ? ? wireless and annex B (germany)

Hardware Highlights

CPU Ram Flash Network USB Serial JTag
TNETD7200ZDW 16MiB 4MiB 4 x 100MBit/s No Yes Yes

Installation

Flash Layout

Please check out the article Flash Layout. It contains an example and a couple of explanations.

Terminal Installation Process

Information abput installing OpenWrt on the DG834.v3 can be found in the oldwiki under installing.openwrt.

Upgrading OpenWrt

generic.sysupgrade

If you have already installed OpenWrt and like to reflash for e.g. upgrading to a new OpenWrt version you can upgrade using the mtd command line tool. It is important that you put the firmware image into the ramdisk (/tmp) before you start flashing.

Basic configuration

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

Specific Configuration

Failsafe mode

The Netgear firmware supports the Netgear recovery mode, which is documented on Netgear's website. Hold down the reset pin and power on, continuing to hold the pin in until the power and tick LEDs blink alternately.

Hardware

Info

Architecture: MIPS
Vendor: Texas Instruments
Bootloader: ADAM2 (possible to flash PSPBoot)
System-On-Chip: unknown
CPU/Speed 4KEc / 211MHz
Flash-Chip: Macronix 29LV320
Flash size: 4 MiB
RAM: 16 MiB
Wireless: Texas Instruments, TNETW1350A (VLYNQ-attached) (no all models)
Ethernet: Marvell, 88E6060-RCJ1 (6-port switch controller) swconfig
Internet: ADSL, ADSL2+, ANSI T1.413, G.DMT, G.Lite (ITU Annex A; Annex B version is DG834B)
USB: No
Serial: Yes
JTAG: Yes

Photos

Opening the case

Note: This will void your warranty!

  • There are four screws under the rubber feet. The feet are not glued to the plastic and can easily be removed and pushed back into place once reassembled. The feet have rubber tethers, but you can slide them out gently without damaging them, and later you can reinsert them just as easily. Don't forget to put them in a plastic baggie so you don't lose them!

Main PCB

here

Serial

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

How to connect to the Serial Port of this specific device:

dg834v3-serial.jpg The serial port runs at 115200baud, 8 data bits, 1 stop bit and no parity.

BE WARNED that you should not run the VCC line to the VCC line on your TTL to RS232/USB adapter. Only wire up RX, TX and GND. The DG834G will happily draw power from the VCC line when its own power is not connected - 3.3V is enough for the LEDs to light up, 5V is enough for ADAM2 to start running! If you use an FTDI USB to TTL serial adapter, the power it consumes is enough to force the serial board to disconnect from the USB due to excessive current draw, which is incredibly inconvenient when trying to capture the bootloader messages (minicom quits when ttyUSB0 disappears).

JTAG

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

How to connect to the JTAG Port of this specific device:

dg834v3-jtag.jpg

Debricking

Bootloader Mods

Tags

For some Help with the Tags, please have a look here: tags

Back to top

toh/netgear/dg834.v3.txt · Last modified: 2013/06/15 18:31 by lorema