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Keypad 的代码
keypad.c
/*
****************************************************
键盘
****************************************************
*/
#include
#include
#include "Typedef.H"
#
keypad.h
/*************************************************************************
** Keypad 头文件
***************************************************************************/
#ifndef _KEYPAD_H_
#defi
keypad.lst
C51 COMPILER V7.50 KEYPAD 11/10/2008 14:21:37 PAGE 1
C51 COMPILER V7.50, COMPILATION OF MODULE KEYPAD
OBJECT MODULE PLACED IN
keypad.c
#include
/*键盘扫描函数,没有键按下返回0x7f*/
/*如果shift按下，返回值最高位为1*/
extern void delay_ms(unsigned int time);
unsigned char scan_key(void)
{
unsigned char i,temp;
unsigned shift=0;
keypad._c
#include
/*键盘扫描函数,没有键按下返回0x7f*/
/*如果shift按下，返回值最高位为1*/
extern void delay_ms(unsigned int time);
unsigned char scan_key(void)
{
unsigned char i,temp;
unsigned shift=0;
keypad.lis
.module keypad.c
.area text(rom, con, rel)
0000 .dbfile E:\Backup\单片机相关\avr双龙\双龙开发工具\SL-MEGA128\mix_exp\keypad.c
0000
keypad.s
.module keypad.c
.area text(rom, con, rel)
.dbfile E:\Backup\单片机相关\avr双龙\双龙开发工具\SL-MEGA128\mix_exp\keypad.c
.dbfunc e scan_key _scan_key fc
; shift -> R22,R23
; i -> R10
keypad.o
XL
H 1 areas 8 global symbols
M keypad.c
S push_gset2 Ref0000
S push_gset4 Ref0000
S lsl8 Ref0000
S pop_gset2 Ref0000
S pop_gset4 Ref0000
S _delay_ms Ref0000
A text size 12C flags 0
dbfile E
keypad.c
#include
/*键盘扫描函数,没有键按下返回0x7f*/
/*如果shift按下，返回值最高位为1*/
extern delay_1ms(void);
void delay_ms(unsigned int n);
unsigned char scan_key(void)
{
unsigned char i,temp;
unsigne