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WRV54G serial port

Discussion in 'Modding Forum' started by Sfor, Jul 5, 2011.

  1. Sfor

    Sfor Network Guru Member

    I'm trying to get the WRV54G serial port access, as I need to get to the CLI interface. I hope to be able to enable telnet, that way.

    I did solder the pins to the board.

    I do have an operational serial voltage switcher. It does work correctly as Samsung HDD serial terminal. I did replace zener diodes from 2.7V to 3.3V, in order for it to work with 3.3V TTL serial port.

    The WRV54G serial pinout seems to be: RX/TX at pins 1/7, ground at 4 and 6.

    But, I'm not getting any output in the Hyper Terminal. According to my research the serial port should be working with 115200 N 1, software flow controll.

    I do not know if it is enough to turn the router on, to get some output on the serial port. Perhaps, I have to enable the serial port first, somehow. I'm still working with the latest Linksys/Cisco firmware.
     
  2. jenom

    jenom Networkin' Nut Member

    WRT54G serial port

    check which version of WRT54G you have first, because serial pinout maybe different, but maybe a same ?
    I have a version 3.0, and my serial pins are as follows:
    1,2 +3.3 v
    9,10 GND
    7,8 unused
    3 tx first port
    4 tx second port
    5 rx second port
    6 rx first port

    If you have a voltmeter, you can verify voltages between + and gnd pins
    If not, use an LED with a 100 ohm resistor in series attached to one leg

    I am trying to find out also, if TOMATO 1.28 has support for serial port
    Do you have a working tomato installed ? version 1.28 ?
    Can you check in terminal window if /dev/tts/0 exist ?
    If "setserial" command runs, can you check what "setserial -G /dev/tts/0" command returns ?
     
  3. Toxic

    Toxic Administrator Staff Member

    he has a WRV54G not a WRT54G :)
     
  4. Sfor

    Sfor Network Guru Member

    Finally, I have the WRV54G Com port working. The information about the software flow controll was missleading. It started to work, when I set the flow control to none in the Windows 2000 Hyperterminal.

    The router sends the whole boot log to the COM port. So, it is enough to turn the device on to receive some data.
     

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