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Last Post 23 Dec 2005 08:52 AM by  mikea@logicpd.com
Keyboard Control Register
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ramakrishnan@hdmedigroup.com
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22 Dec 2005 11:02 PM
    Hi

    In user guide they specified this register for column drive,
    and we can make low or high.

    But these pins in the SDK LH7A400 kit by defaut gives away 3.3V,

    How can i read or write to this register .
    mikea@logicpd.com
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    23 Dec 2005 08:52 AM
    What software are you using?

    You can test this out easily using LogicLoader, with the 'x' and 'w' commands. Just find the address in teh Sharp user guide and use the 'x' command to read how it is set up by default.

    So, for example, you can read the KBDCTL register by using the following command:

    losh> x /w 0x80000E28

    The default value in this register is 0x00000000, which means they are all driven 'high'.

    Forums NXP SOMs and Development Kits LH7A400 Card Engine and Development Kit
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