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eGospodarka.plGrupypl.misc.elektronikakey commands
Ilość wypowiedzi w tym wątku: 2

  • 1. Data: 2009-05-06 06:53:20
    Temat: key commands
    Od: Mariusz Ł <e...@p...onet.pl>

    Host Commands
    ----------------------------------------------------
    ----------------------------

    These commands are sent by the Host to the Keyboard. The most common
    command would be the setting/resetting of the Status Indicators (i.e.
    the Num lock, Caps Lock & Scroll Lock LEDs). The more common and useful
    commands are shown below.


    ED Set Status LED's - This command can be used to turn on and off the
    Num Lock, Caps Lock & Scroll Lock LED's. After Sending ED, keyboard will
    reply with ACK (FA) and wait for another byte which determines their
    Status. Bit 0 controls the Scroll Lock, Bit 1 the Num Lock and Bit 2 the
    Caps lock. Bits 3 to 7 are ignored.

    EE Echo - Upon sending a Echo command to the Keyboard, the keyboard
    should reply with a Echo (EE)

    F0 Set Scan Code Set. Upon Sending F0, keyboard will reply with ACK (FA)
    and wait for another byte, 01-03 which determines the Scan Code Used.
    Sending 00 as the second byte will return the Scan Code Set currently in
    Use

    F3 Set Typematic Repeat Rate. Keyboard will Acknowledge command with FA
    and wait for second byte, which determines the Typematic Repeat Rate.

    F4 Keyboard Enable - Clears the keyboards output buffer, enables
    Keyboard Scanning and returns an Acknowledgment.

    F5 Keyboard Disable - Resets the keyboard, disables Keyboard Scanning
    and returns an Acknowledgment.

    FE Resend - Upon receipt of the resend command the keyboard will re-
    transmit the last byte sent.

    FF Reset - Resets the Keyboard.


  • 2. Data: 2009-05-06 19:57:16
    Temat: Re: key commands
    Od: Adam Dybkowski <a...@4...pl>

    Mariusz Ł pisze:

    > Host Commands
    > ----------------------------------------------------
    ----------------------------
    > These commands are sent by the Host to the Keyboard.
    [...]

    Rozumiem, że to backup wiedzy do trzymania przez Google Groups, nawet
    jak już znikną tradycyjne klawiatury a słuch o portach PS/2 zaginie?

    --
    Adam Dybkowski
    http://dybkowski.net/

    Uwaga: przed wysłaniem do mnie maila usuń cyfry z adresu.

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