This is a modification of CCS keypad driver (KBDD.c) with flexible pins connections. Code: /////////////////////////////////////////////////////////////////////////// //// Flex_KBD.C //// //// Generic keypad scan driver //// //// //// //// kbd_init() Must be called before any other function. //// //// //// //// c = kbd_getc(c) Will return a key value if pressed or /0 if not //// //// This function should be called frequently so as //// //// not to miss a key press. ////

Flexible Keypad Driver.txt

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