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Thread: Serial port for WL-500g

  1. Serial port for WL-500g

    We're looking to add a serial port to the wl500g to make boot analysis and development easier.

    Has anyone done this already? We need to find the proper pins to attach the UART and transceiver chips to on the WL-500g main board.

  2. #2
    Join Date
    Dec 2003
    Location
    Czech Republic
    Posts
    270
    In my opinion the signal assignment could be following (perhaps - did not check as I don't have the connector plug):

    signal ......... COM Port pin ............. 16C552D pin
    /CS ............... 14 .................................. 18
    /RD ............... 15 .................................. 24
    /WR .............. 16 .................................. 20
    INT ............... 17 .................................. 34

    GND .............. 18 ................................ 12,22
    +5V .............. 13 ................................. 33,44

    D0-D7 ........... 1-8 ............................... 2-9
    A0-A3 ............ 9-12 .......................... 10,14,15,-

  3. #3

    Add just 2 Pins of Serial Port for 240V Relais

    HI!

    I'm thinking about replacing my old linux router with a wl-500g. Reasons are noise, electricity costs, warmth etc.

    I have an rather old HP-Laserjet connected to the linux router, to print through the network. The problem is, that it doesn't start itself on demand. So i added an relais to two pins of the serial port. When a samba connection is established the linux router just makes a +5V on the pin and the printer wakes up for at least 5 min.

    How can I do this with the Wl-500g. Or should i stick to a PC for that problem. Could i do a hardware modification, without a extra chip and so on? Just don't want to modificate to much.

    Thanks
    Michael

  4. #4
    Hi,

    couldn't you use a usb-serial adapter?

    cu Biertrinker

  5. #5
    Join Date
    Apr 2004
    Location
    Netherlands
    Posts
    1,307
    The search button is very powerful:

    Hardware serial port: http://wl500g.info/showthread.php?t=...ht=serial+port
    USB to serial port adapter: http://wl500g.info/showthread.php?t=...ht=serial+port

    Thanks to Technik

  6. #6
    Join Date
    Dec 2003
    Location
    Russian Federation
    Posts
    8,353
    Quote Originally Posted by Brunni
    HI!

    I'm thinking about replacing my old linux router with a wl-500g. Reasons are noise, electricity costs, warmth etc.

    I have an rather old HP-Laserjet connected to the linux router, to print through the network. The problem is, that it doesn't start itself on demand. So i added an relais to two pins of the serial port. When a samba connection is established the linux router just makes a +5V on the pin and the printer wakes up for at least 5 min.

    How can I do this with the Wl-500g. Or should i stick to a PC for that problem. Could i do a hardware modification, without a extra chip and so on? Just don't want to modificate to much.

    Thanks
    Michael
    If you're familar with hardware and with linux then yes, you could perform hw modification and use unused GPIO lines inside the wl-500g. This will void your warranty for sure.

  7. #7
    Well, I'm neither very linux experienced nor a hardware freak.

    Perhaps I should stick to my linux router. It has more possibilities to test new software and tricks. Like asterisk, imap, and more

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