watchdog.lst

meg16 的所有功能实例

__start:
__text_start:
    002A E5CF      LDI	R28,0x5F
    002B E0D4      LDI	R29,4
    002C BFCD      OUT	0x3D,R28
    002D BFDE      OUT	0x3E,R29
    002E 51C0      SUBI	R28,0x10
    002F 40D0      SBCI	R29,0
    0030 EA0A      LDI	R16,0xAA
    0031 8308      STD	Y+0,R16
    0032 2400      CLR	R0
    0033 E6E0      LDI	R30,0x60
    0034 E0F0      LDI	R31,0
    0035 E010      LDI	R17,0
    0036 36E0      CPI	R30,0x60
    0037 07F1      CPC	R31,R17
    0038 F011      BEQ	0x003B
    0039 9201      ST	R0,Z+
    003A CFFB      RJMP	0x0036
    003B 8300      STD	Z+0,R16
    003C E5E4      LDI	R30,0x54
    003D E0F0      LDI	R31,0
    003E E6A0      LDI	R26,0x60
    003F E0B0      LDI	R27,0
    0040 E010      LDI	R17,0
    0041 35E4      CPI	R30,0x54
    0042 07F1      CPC	R31,R17
    0043 F021      BEQ	0x0048
    0044 95C8      LPM
    0045 9631      ADIW	R30,1
    0046 920D      ST	R0,X+
    0047 CFF9      RJMP	0x0041
    0048 940E004B  CALL	_main
_exit:
    004A CFFF      RJMP	_exit
FILE: E:\MYWORK~1\开发设计\EasyAVR\程序范例\Mega16例程\WATCHD~1\watchdog.c
(0001) /****************************************Copyright (c)**************************************************
(0002) **                               ADEmbed Development Co.,LTD.                                    
(0003) **                                 http://www.adembed.com
(0004) **--------------File Info-------------------------------------------------------------------------------
(0005) ** File name:			watchdog.c
(0006) ** Last modified Date:  2008-12-13
(0007) ** Last Version:		1.0
(0008) ** Descriptions:		watchdog Test.
(0009) ** 
(0010) **------------------------------------------------------------------------------------------------------
(0011) ** Created by:			junbolu
(0012) ** Created date:		2008-12-13
(0013) ** Version:				1.0
(0014) ** Descriptions:		
(0015) **
(0016) **------------------------------------------------------------------------------------------------------
(0017) ** Modified by:
(0018) ** Modified date:
(0019) ** Version:
(0020) ** Descriptions:
(0021) **
(0022) **------------------------------------------------------------------------------------------------------
(0023) **ICC-AVR application builder : 2008-12-13
(0024) **Target : M16
(0025) **Crystal: 7.3728Mhz
(0026) 
(0027) **WDP2 WDP1 WDP0 看门狗振荡器周期   VCC = 3.0V 时典型的溢出周期 VCC = 5.0V 时典型的溢出周期
(0028) **0    0    0    16K (16,384)       17.1 ms                     16.3 ms
(0029) **0    0    1    32K (32,768)       34.3 ms                     32.5 ms
(0030) **0    1    0    64K (65,536)       68.5 ms                     65 ms
(0031) **0    1    1    128K (131,072)     0.14 s                      0.13 s
(0032) **1    0    0    256K (262,144)     0.27 s                      0.26 s
(0033) **1    0    1    512K (524,288)     0.55 s                      0.52 s
(0034) **1    1    0    1,024K (1,048,576) 1.1 s                       1.0 s
(0035) **1    1    1    2,048K (2,097,152) 2.2 s                       2.1 s
(0036) *******************************************************************************************************/
(0037) #include <iom16v.h>
(0038) #include <macros.h>
(0039) 
(0040) void main(void)
(0041)  {
(0042)  WDTCR|=(1<<WDP1)|(1<<WDP2)|(1<<WDE);        //看门狗定时器预分频器设置
_main:
    004B B581      IN	R24,0x21
    004C 608E      ORI	R24,0xE
    004D BD81      OUT	0x21,R24
(0043)  WDTCR|=(1<<WDP0);							 //使能看门狗
    004E B581      IN	R24,0x21
    004F 6081      ORI	R24,1
    0050 BD81      OUT	0x21,R24
    0051 C001      RJMP	0x0053
(0044)  
(0045)  while(1)
(0046)      {
(0047) 	 _WDR();								 //喂狗
FILE: <library>
    0052 95A8      WDR
    0053 CFFE      RJMP	0x0052
    0054 9508      RET