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Last Post 28 Apr 2003 04:02 PM by  Anonymous
LED on Application board
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zwchen@csie.ntu.edu.tw
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24 Apr 2003 07:45 PM
    From Spec "LH79520 Card Engine IO Controller Interface Specification"
    I knew I could turn on/off LED label stutus1 or gpio1 on application board.
    But It seems no any words about how to turn on/off LED "status0" on application board.
    Counld you tell the interface?
    Anonymous
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    28 Apr 2003 04:02 PM
    Dear zwchen,

    The "LH79520 Card Engine IO Controller Interface Specification" doesn't contain any information about LED "status0" because it doesn't control the LED. Rather it is directly connected to the processor.

    First refer to the application board schematics and find LED STATUS 0. Trace the net (uP_STATUS_1) through the schematics to the card engine connector. Now switch to the card engine schematics. Continue following the net to its source (net ), which is to the processor,
    port B1 (page 10 of card engine schematic). That is your interface.

    Best Regards,

    Moderator
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