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Keypad 的代码
keypad.asm
/*******************************************************************************
************ LABCENTER ELECTRONICS ************
****
keypad.lst
A51 MACRO ASSEMBLER KEYPAD 11/03/2000 12:22:31 PAGE 1
MACRO ASSEMBLER A51 V6.02
OBJECT MODULE PLACED IN .\keypad.OBJ
ASSEMBLE
keypad.c
/*
* keypad.c
*
* Created on: 2013-3-19
* Author: think
*/
#include "msp430x54xA.h"
#include "cry12864.h"
/* 4X4矩阵按键
* P7,P2都是高4位操作，P7输出，P2输入
* */
#define KEY_ROW P7DIR |