8x8 keypad matrix...

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  1. - 9th October 2014, 19:43 #1
    VinuPP's Avatar
    VinuPP
    VinuPP is offline Inactive Member
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    Default Re: 8x8 keypad matrix...

    Hello In your code you have enabled pullups resistor to vcc in portb so please change your ports
    because "Column bits must have Pull-up resistor attach to VCC"
    Ex:
    DEFINE KEYPAD_ROW 6 ' 6 row
    define KEYPAD_ROW_PORT PORTC '
    DEFINE KEYPAD_ROW_BIT 0 '
    DEFINE KEYPAD_COL 4 ' 4 col
    DEFINE KEYPAD_COL_PORT PORTB '
    DEFINE KEYPAD_COL_BIT 0 '
    Last edited by VinuPP; - 9th October 2014 at 19:45.
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