main_key.lst

WINAVR写的2x8键盘扫描程序

   1               		.file	"main_key.c"
   2               		.arch atmega16
   3               	__SREG__ = 0x3f
   4               	__SP_H__ = 0x3e
   5               	__SP_L__ = 0x3d
   6               	__tmp_reg__ = 0
   7               	__zero_reg__ = 1
   8               		.global __do_copy_data
   9               		.global __do_clear_bss
  11               		.text
  12               	.Ltext0:
  74               	.global	Timer0_init
  76               	Timer0_init:
   1:main_key.c    **** /*
   2:main_key.c    **** File name:main_key.c 
   3:main_key.c    **** Function: 利用定时器定时中断来扫描键盘，并把键值显示到LCM1602上
   4:main_key.c    **** Author:ken
   5:main_key.c    **** Date:2007-08-15
   6:main_key.c    **** */
   7:main_key.c    **** 
   8:main_key.c    **** #include <avr/io.h>
   9:main_key.c    **** #include "2X8_key.h"
  10:main_key.c    **** #include "lcm1602.h"
  11:main_key.c    **** #include <util/delay.h>
  12:main_key.c    **** //#include <inttypes.h>
  13:main_key.c    **** #include <avr/interrupt.h>
  14:main_key.c    **** #include "type.h"
  15:main_key.c    **** 
  16:main_key.c    **** /* 
  17:main_key.c    ****  * Name:Timer0_init
  18:main_key.c    ****  * Function:定时器0初始化，定时21ms
  19:main_key.c    ****  * In:null
  20:main_key.c    ****  * Out:null
  21:main_key.c    ****  * Author:Ken
  22:main_key.c    ****  * Date:2007-08-15
  23:main_key.c    **** */
  24:main_key.c    **** void Timer0_init(void)
  25:main_key.c    **** {
  78               	.LM1:
  79               	/* prologue: frame size=0 */
  80 0000 CF93      		push r28
  81 0002 DF93      		push r29
  82 0004 CDB7      		in r28,__SP_L__
  83 0006 DEB7      		in r29,__SP_H__
  84               	/* prologue end (size=4) */
  26:main_key.c    ****  TCNT0 = 0x1A; //set count
  86               	.LM2:
  87 0008 8AE1      		ldi r24,lo8(26)
  88 000a 8093 5200 		sts 82,r24
  27:main_key.c    ****  OCR0  = 0xE6;  //set compare
  90               	.LM3:
  91 000e 86EE      		ldi r24,lo8(-26)
  92 0010 8093 5C00 		sts 92,r24
  28:main_key.c    ****  TCCR0|= ((1<<CS02)|(1<<CS00));  //1024预分频 0x05
  94               	.LM4:
  95 0014 8091 5300 		lds r24,83
  96 0018 8560      		ori r24,lo8(5)
  97 001a 8093 5300 		sts 83,r24
  29:main_key.c    ****  TIMSK|= (1<<TOIE0);               //允许TC0溢出中断
  99               	.LM5:
 100 001e 8091 5900 		lds r24,89
 101 0022 8160      		ori r24,lo8(1)
 102 0024 8093 5900 		sts 89,r24
 103               	/* epilogue: frame size=0 */
 104 0028 DF91      		pop r29
 105 002a CF91      		pop r28
 106 002c 0895      		ret
 107               	/* epilogue end (size=3) */
 108               	/* function Timer0_init size 23 (16) */
 110               	.Lscope0:
 112               	.global	__vector_9
 114               	__vector_9:
  30:main_key.c    **** }
  31:main_key.c    **** 
  32:main_key.c    **** SIGNAL(SIG_OVERFLOW0)
  33:main_key.c    **** {
 116               	.LM6:
 117               	/* prologue: frame size=0 */
 118 002e 1F92      		push __zero_reg__
 119 0030 0F92      		push __tmp_reg__
 120 0032 0FB6      		in __tmp_reg__,__SREG__
 121 0034 0F92      		push __tmp_reg__
 122 0036 1124      		clr __zero_reg__
 123 0038 2F93      		push r18
 124 003a 3F93      		push r19
 125 003c 4F93      		push r20
 126 003e 5F93      		push r21
 127 0040 6F93      		push r22
 128 0042 7F93      		push r23
 129 0044 8F93      		push r24
 130 0046 9F93      		push r25
 131 0048 AF93      		push r26
 132 004a BF93      		push r27
 133 004c EF93      		push r30
 134 004e FF93      		push r31
 135 0050 CF93      		push r28
 136 0052 DF93      		push r29
 137 0054 CDB7      		in r28,__SP_L__
 138 0056 DEB7      		in r29,__SP_H__
 139               	/* prologue end (size=21) */
  34:main_key.c    ****   TCNT0 = 0x1A;  //set count
 141               	.LM7:
 142 0058 8AE1      		ldi r24,lo8(26)
 143 005a 8093 5200 		sts 82,r24
  35:main_key.c    **** 	key();
 145               	.LM8:
 146 005e 0E94 0000 		call key
 147               	/* epilogue: frame size=0 */
 148 0062 DF91      		pop r29
 149 0064 CF91      		pop r28
 150 0066 FF91      		pop r31
 151 0068 EF91      		pop r30
 152 006a BF91      		pop r27
 153 006c AF91      		pop r26
 154 006e 9F91      		pop r25
 155 0070 8F91      		pop r24
 156 0072 7F91      		pop r23
 157 0074 6F91      		pop r22
 158 0076 5F91      		pop r21
 159 0078 4F91      		pop r20
 160 007a 3F91      		pop r19
 161 007c 2F91      		pop r18
 162 007e 0F90      		pop __tmp_reg__
 163 0080 0FBE      		out __SREG__,__tmp_reg__
 164 0082 0F90      		pop __tmp_reg__
 165 0084 1F90      		pop __zero_reg__
 166 0086 1895      		reti
 167               	/* epilogue end (size=19) */
 168               	/* function __vector_9 size 45 (5) */
 170               	.Lscope1:
 172               	.global	main
 174               	main:
  36:main_key.c    **** }
  37:main_key.c    **** 
  38:main_key.c    **** int main(void)
  39:main_key.c    **** {
 176               	.LM9:
 177               	/* prologue: frame size=13 */
 178 0088 C0E0      		ldi r28,lo8(__stack - 13)
 179 008a D0E0      		ldi r29,hi8(__stack - 13)
 180 008c DEBF      		out __SP_H__,r29
 181 008e CDBF      		out __SP_L__,r28
 182               	/* prologue end (size=4) */
  40:main_key.c    ****   key_init();
 184               	.LM10:
 185 0090 0E94 0000 		call key_init
  41:main_key.c    **** 	Timer0_init();
 187               	.LM11:
 188 0094 0E94 0000 		call Timer0_init
  42:main_key.c    **** 	LCM1602Init();
 190               	.LM12:
 191 0098 0E94 0000 		call LCM1602Init
  43:main_key.c    **** 	sei();
 193               	.LM13:
 194               	/* #APP */
 195 009c 7894      		sei
 196               	/* #NOAPP */
 197               	.L4:
 198               	.LBB2:
  44:main_key.c    **** 	while(1)
  45:main_key.c    **** 	{
  46:main_key.c    **** 	  unsigned char temp_key1;
  47:main_key.c    **** 		temp_key1=key();
 200               	.LM14:
 201 009e 0E94 0000 		call key
 202 00a2 8983      		std Y+1,r24
 203               	.LBB3:
 205               	.Ltext1:
   1:C:/WinAVR/avr/include/util/delay.h **** /* Copyright (c) 2002, Marek Michalkiewicz
   2:C:/WinAVR/avr/include/util/delay.h ****    Copyright (c) 2004,2005 Joerg Wunsch
   3:C:/WinAVR/avr/include/util/delay.h ****    All rights reserved.
   4:C:/WinAVR/avr/include/util/delay.h **** 
   5:C:/WinAVR/avr/include/util/delay.h ****    Redistribution and use in source and binary forms, with or without
   6:C:/WinAVR/avr/include/util/delay.h ****    modification, are permitted provided that the following conditions are met:
   7:C:/WinAVR/avr/include/util/delay.h **** 
   8:C:/WinAVR/avr/include/util/delay.h ****    * Redistributions of source code must retain the above copyright
   9:C:/WinAVR/avr/include/util/delay.h ****      notice, this list of conditions and the following disclaimer.
  10:C:/WinAVR/avr/include/util/delay.h **** 
  11:C:/WinAVR/avr/include/util/delay.h ****    * Redistributions in binary form must reproduce the above copyright
  12:C:/WinAVR/avr/include/util/delay.h ****      notice, this list of conditions and the following disclaimer in
  13:C:/WinAVR/avr/include/util/delay.h ****      the documentation and/or other materials provided with the
  14:C:/WinAVR/avr/include/util/delay.h ****      distribution.
  15:C:/WinAVR/avr/include/util/delay.h **** 
  16:C:/WinAVR/avr/include/util/delay.h ****    * Neither the name of the copyright holders nor the names of
  17:C:/WinAVR/avr/include/util/delay.h ****      contributors may be used to endorse or promote products derived
  18:C:/WinAVR/avr/include/util/delay.h ****      from this software without specific prior written permission.
  19:C:/WinAVR/avr/include/util/delay.h **** 
  20:C:/WinAVR/avr/include/util/delay.h ****   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  21:C:/WinAVR/avr/include/util/delay.h ****   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22:C:/WinAVR/avr/include/util/delay.h ****   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23:C:/WinAVR/avr/include/util/delay.h ****   ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24:C:/WinAVR/avr/include/util/delay.h ****   LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25:C:/WinAVR/avr/include/util/delay.h ****   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26:C:/WinAVR/avr/include/util/delay.h ****   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27:C:/WinAVR/avr/include/util/delay.h ****   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28:C:/WinAVR/avr/include/util/delay.h ****   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29:C:/WinAVR/avr/include/util/delay.h ****   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30:C:/WinAVR/avr/include/util/delay.h ****   POSSIBILITY OF SUCH DAMAGE. */
  31:C:/WinAVR/avr/include/util/delay.h **** 
  32:C:/WinAVR/avr/include/util/delay.h **** /* $Id: delay.h,v 1.1.2.1 2005/12/12 23:19:49 joerg_wunsch Exp $ */
  33:C:/WinAVR/avr/include/util/delay.h **** 
  34:C:/WinAVR/avr/include/util/delay.h **** #ifndef _UTIL_DELAY_H_
  35:C:/WinAVR/avr/include/util/delay.h **** #define _UTIL_DELAY_H_ 1
  36:C:/WinAVR/avr/include/util/delay.h **** 
  37:C:/WinAVR/avr/include/util/delay.h **** #include <inttypes.h>
  38:C:/WinAVR/avr/include/util/delay.h **** 
  39:C:/WinAVR/avr/include/util/delay.h **** /** \defgroup util_delay <util/delay.h>: Busy-wait delay loops
  40:C:/WinAVR/avr/include/util/delay.h ****     \code
  41:C:/WinAVR/avr/include/util/delay.h ****     #define F_CPU 1000000UL  // 1 MHz
  42:C:/WinAVR/avr/include/util/delay.h ****     //#define F_CPU 14.7456E6
  43:C:/WinAVR/avr/include/util/delay.h ****     #include <util/delay.h>
  44:C:/WinAVR/avr/include/util/delay.h ****     \endcode
  45:C:/WinAVR/avr/include/util/delay.h **** 
  46:C:/WinAVR/avr/include/util/delay.h ****     \note As an alternative method, it is possible to pass the
  47:C:/WinAVR/avr/include/util/delay.h ****     F_CPU macro down to the compiler from the Makefile.
  48:C:/WinAVR/avr/include/util/delay.h ****     Obviously, in that case, no \c \#define statement should be
  49:C:/WinAVR/avr/include/util/delay.h ****     used.
  50:C:/WinAVR/avr/include/util/delay.h **** 
  51:C:/WinAVR/avr/include/util/delay.h ****     The functions in this header file implement simple delay loops
  52:C:/WinAVR/avr/include/util/delay.h ****     that perform a busy-waiting.  They are typically used to
  53:C:/WinAVR/avr/include/util/delay.h ****     facilitate short delays in the program execution.  They are
  54:C:/WinAVR/avr/include/util/delay.h ****     implemented as count-down loops with a well-known CPU cycle
  55:C:/WinAVR/avr/include/util/delay.h ****     count per loop iteration.  As such, no other processing can
  56:C:/WinAVR/avr/include/util/delay.h ****     occur simultaneously.  It should be kept in mind that the
  57:C:/WinAVR/avr/include/util/delay.h ****     functions described here do not disable interrupts.
  58:C:/WinAVR/avr/include/util/delay.h **** 
  59:C:/WinAVR/avr/include/util/delay.h ****     In general, for long delays, the use of hardware timers is
  60:C:/WinAVR/avr/include/util/delay.h ****     much preferrable, as they free the CPU, and allow for
  61:C:/WinAVR/avr/include/util/delay.h ****     concurrent processing of other events while the timer is
  62:C:/WinAVR/avr/include/util/delay.h ****     running.  However, in particular for very short delays, the
  63:C:/WinAVR/avr/include/util/delay.h ****     overhead of setting up a hardware timer is too much compared
  64:C:/WinAVR/avr/include/util/delay.h ****     to the overall delay time.
  65:C:/WinAVR/avr/include/util/delay.h **** 
  66:C:/WinAVR/avr/include/util/delay.h ****     Two inline functions are provided for the actual delay algorithms.
  67:C:/WinAVR/avr/include/util/delay.h **** 
  68:C:/WinAVR/avr/include/util/delay.h ****     Two wrapper functions allow the specification of microsecond, and
  69:C:/WinAVR/avr/include/util/delay.h ****     millisecond delays directly, using the application-supplied macro
  70:C:/WinAVR/avr/include/util/delay.h ****     F_CPU as the CPU clock frequency (in Hertz).  These functions
  71:C:/WinAVR/avr/include/util/delay.h ****     operate on double typed arguments, however when optimization is
  72:C:/WinAVR/avr/include/util/delay.h ****     turned on, the entire floating-point calculation will be done at
  73:C:/WinAVR/avr/include/util/delay.h ****     compile-time.
  74:C:/WinAVR/avr/include/util/delay.h **** 
  75:C:/WinAVR/avr/include/util/delay.h ****     \note When using _delay_us() and _delay_ms(), the expressions
  76:C:/WinAVR/avr/include/util/delay.h ****     passed as arguments to these functions shall be compile-time
  77:C:/WinAVR/avr/include/util/delay.h ****     constants, otherwise the floating-point calculations to setup the
  78:C:/WinAVR/avr/include/util/delay.h ****     loops will be done at run-time, thereby drastically increasing
  79:C:/WinAVR/avr/include/util/delay.h ****     both the resulting code size, as well as the time required to
  80:C:/WinAVR/avr/include/util/delay.h ****     setup the loops.
  81:C:/WinAVR/avr/include/util/delay.h **** */
  82:C:/WinAVR/avr/include/util/delay.h **** 
  83:C:/WinAVR/avr/include/util/delay.h **** #if !defined(__DOXYGEN__)