c52mcu_m16.lst

很实用的单片机例程

Interrupt Vectors
    00000 940C 002A JMP	__start|__text_start

Program Code (text area)
__start|__text_start:
    0002A E5CF      LDI	R28,0x5F
    0002B E0D4      LDI	R29,4
    0002C BFCD      OUT	0x3D,R28
    0002D BFDE      OUT	0x3E,R29
    0002E 51CE      SUBI	R28,0x1E
    0002F 40D0      SBCI	R29,0
    00030 EA0A      LDI	R16,0xAA
    00031 8308      ST	Y,R16
    00032 2400      CLR	R0
    00033 E6E0      LDI	R30,0x60
    00034 E0F0      LDI	R31,0
    00035 E010      LDI	R17,0
    00036 36E0      CPI	R30,0x60
    00037 07F1      CPC	R31,R17
    00038 F011      BEQ	0x003B
    00039 9201      ST	Z+,R0
    0003A CFFB      RJMP	0x0036
    0003B 8300      ST	Z,R16
    0003C E5E4      LDI	R30,0x54
    0003D E0F0      LDI	R31,0
    0003E E6A0      LDI	R26,0x60
    0003F E0B0      LDI	R27,0
    00040 E010      LDI	R17,0
    00041 E000      LDI	R16,0
    00042 BF0B      OUT	0x3B,R16
    00043 35E4      CPI	R30,0x54
    00044 07F1      CPC	R31,R17
    00045 F021      BEQ	0x004A
    00046 95C8      LPM
    00047 9631      ADIW	R30,1
    00048 920D      ST	X+,R0
    00049 CFF9      RJMP	0x0043
    0004A 940E 0062 CALL	_main
_exit:
    0004C CFFF      RJMP	_exit
_delay02s:
  i                    --> R16
  j                    --> R18
  k                    --> R20
    0004D 934A      ST	-Y,R20
FILE: C:\HJ-1G-AVR\1LED~1\main.c
(0001) //开发环境：HJ-1G HJ-3G 开发板+AVR增强包套装
(0002) //芯片：ATMEGA16A
(0003) //编译器：ICCV7
(0004) //编写：慧净电子
(0005) //网址：WWW.HLMCU.COM   QQ:121350852
(0006) //点亮HJ-1G/3G开发板上的1个LED灯
(0007) #include "iom16v.h"
(0008) #include "macros.h"
(0009) void delay02s(void)               //延时0.2秒子程序
(0010)          {
(0011)            unsigned char i,j,k;  //定义3个无符号字符型数据。
(0012)            for(i=20;i>0;i--)     //作循环延时
    0004E E104      LDI	R16,0x14
    0004F C00D      RJMP	0x005D
(0013)            for(j=20;j>0;j--)
    00050 E124      LDI	R18,0x14
    00051 C007      RJMP	0x0059
(0014)            for(k=248;k>0;k--);
    00052 EF48      LDI	R20,0xF8
    00053 C001      RJMP	0x0055
    00054 954A      DEC	R20
    00055 E080      LDI	R24,0
    00056 1784      CP	R24,R20
    00057 F3E0      BCS	0x0054
    00058 952A      DEC	R18
    00059 E080      LDI	R24,0
    0005A 1782      CP	R24,R18
    0005B F3B0      BCS	0x0052
    0005C 950A      DEC	R16
    0005D E080      LDI	R24,0
    0005E 1780      CP	R24,R16
    0005F F380      BCS	0x0050
    00060 9149      LD	R20,Y+
    00061 9508      RET
(0015)           }
(0016) 
(0017) void main()
(0018) {
(0019)  	 //DDRA=DDRA|BIT(2);		//PA2为输出状态
(0020) 	 //PORTA=PORTA|BIT(2);	  //PA2输出高电平
(0021) 	 
(0022) 	 DDRC=0xFF;				  //PB0~7为输出状态
_main:
    00062 EF8F      LDI	R24,0xFF
    00063 BB84      OUT	0x14,R24
    00064 C006      RJMP	0x006B
(0023) 
(0024) 	 while(1)				//程式停止。
(0025) 	 {
(0026) 	 	PORTC=0x00;				//PB0为输出低电平，而其余为高电平，亦即打亮LED0		
    00065 2422      CLR	R2
    00066 BA25      OUT	0x15,R2
(0027) 		//PORTB&=~BIT(0)		//等价
(0028) 	    delay02s();  //延时经过0.2秒。
    00067 DFE5      RCALL	_delay02s
(0029) 	    PORTC=0xff;	
    00068 EF8F      LDI	R24,0xFF
    00069 BB85      OUT	0x15,R24
(0030) 		delay02s();  //延时经过0.2秒。
FILE: <library>
    0006A DFE2      RCALL	_delay02s
    0006B CFF9      RJMP	0x0065
    0006C 9508      RET