diy0816-09.lst

AVR单片机应用开发指南及实例,包含许多实例,挺不错

__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 940E0098  CALL	_main
_exit:
    004A CFFF      RJMP	_exit
FILE: D:\SL-DIY~1\diy0208_16_9\diy0816_09.c
(0001) //9.	I/O端口的又一应用-发声。
(0002) //PB.0端口开关控制PC.0输出报警声程序! 
(0003) //请你修改程序改变报警声音调及快慢。
(0004) //     www.sl.com.cn
(0005) //     [e-mail]    05-11-12
(0006) // Target : mega16     Crystal: 8.0000Mhz
(0007) 
(0008) #include <iom16v.h>
(0009) #include <macros.h>
(0010) 		 //微秒级延时
(0011) void delay_us(int time)
(0012) {     
(0013)  do
(0014)  {
(0015)   time--;
_delay_us:
  time                 --> R16
    004B 5001      SUBI	R16,1
    004C 4010      SBCI	R17,0
(0016)  }	
(0017)   while (time>1);
    004D E081      LDI	R24,1
    004E E090      LDI	R25,0
    004F 1780      CP	R24,R16
    0050 0791      CPC	R25,R17
    0051 F3CC      BLT	0x004B
    0052 9508      RET
_delay_ms:
  time                 --> R20
    0053 940E00B5  CALL	push_gset1
    0055 01A8      MOVW	R20,R16
(0018) }	  
(0019) 	  	//毫秒级延时
(0020) void delay_ms(unsigned int time)
(0021) {
    0056 C005      RJMP	0x005C
(0022)  while(time!=0)
(0023)  {		
(0024)   delay_us(1000);
    0057 EE08      LDI	R16,0xE8
    0058 E013      LDI	R17,3
    0059 DFF1      RCALL	_delay_us
(0025)   time--;
    005A 5041      SUBI	R20,1
    005B 4050      SBCI	R21,0
    005C 3040      CPI	R20,0
    005D 0745      CPC	R20,R21
    005E F7C1      BNE	0x0057
    005F 940E00B8  CALL	pop_gset1
    0061 9508      RET
(0026)  }
(0027) }		
(0028) 
(0029) void port_init(void)
(0030) {	 //端口初始化
(0031)  DDRA  = 0x00;PORTA = 0xFF;
_port_init:
    0062 2422      CLR	R2
    0063 BA2A      OUT	0x1A,R2
    0064 EF8F      LDI	R24,0xFF
    0065 BB8B      OUT	0x1B,R24
(0032)  DDRB  = 0x00;PORTB = 0xFF;
    0066 BA27      OUT	0x17,R2
    0067 BB88      OUT	0x18,R24
(0033)  DDRC  = 0xFF;PORTC = 0xFF;
    0068 BB84      OUT	0x14,R24
    0069 BB85      OUT	0x15,R24
(0034)  DDRD  = 0x00;PORTD = 0xFF; 
    006A BA21      OUT	0x11,R2
    006B BB82      OUT	0x12,R24
    006C 9508      RET
(0035) }
(0036) 
(0037) //TIMER1 initialisation - prescale:8
(0038) // desired value: 100uSec
(0039) // actual value: 100.000uSec (0.0%)
(0040) void timer1_init(void)
(0041) {	 //定时/计数器1初始化
(0042)  TCCR1B = 0x00; //stop
_timer1_init:
    006D 2422      CLR	R2
    006E BC2E      OUT	0x2E,R2
(0043)  TCNT1H = 0xFe; //setup
    006F EF8E      LDI	R24,0xFE
    0070 BD8D      OUT	0x2D,R24
(0044)  TCNT1L = 0x86;
    0071 E886      LDI	R24,0x86
    0072 BD8C      OUT	0x2C,R24
(0045)  OCR1AH = 0x00;
    0073 BC2B      OUT	0x2B,R2
(0046)  OCR1AL = 0x64;
    0074 E684      LDI	R24,0x64
    0075 BD8A      OUT	0x2A,R24
(0047)  OCR1BH = 0x00;
    0076 BC29      OUT	0x29,R2
(0048)  OCR1BL = 0x64;
    0077 BD88      OUT	0x28,R24
(0049)  TCCR1A = 0x00;
    0078 BC2F      OUT	0x2F,R2
(0050)  TCCR1B = 0x02; //start Timer
    0079 E082      LDI	R24,2
    007A BD8E      OUT	0x2E,R24
    007B 9508      RET
_timer1_ovf_isr:
    007C 922A      ST	R2,-Y
    007D 938A      ST	R24,-Y
    007E 939A      ST	R25,-Y
    007F B62F      IN	R2,0x3F
    0080 922A      ST	R2,-Y
(0051) }
(0052) 
(0053) #pragma interrupt_handler timer1_ovf_isr:9
(0054) void timer1_ovf_isr(void)
(0055) {	 //定时/计数器1溢出中断处理函数
(0056)  TCNT1 = 0xFe86; //reload counter value
    0081 E886      LDI	R24,0x86
    0082 EF9E      LDI	R25,0xFE
    0083 BD9D      OUT	0x2D,R25
    0084 BD8C      OUT	0x2C,R24
(0057)  PORTC^=0x01;
    0085 E081      LDI	R24,1
    0086 B225      IN	R2,0x15
    0087 2628      EOR	R2,R24
    0088 BA25      OUT	0x15,R2
    0089 9029      LD	R2,Y+
    008A BE2F      OUT	0x3F,R2
    008B 9199      LD	R25,Y+
    008C 9189      LD	R24,Y+
    008D 9029      LD	R2,Y+
    008E 9518      RETI
(0058) }
(0059) 
(0060) //call this routine to initialise all peripherals
(0061) void init_devices(void)
(0062) {//芯片初始化
(0063)  //stop errant interrupts until set up
(0064)  CLI(); //关中断
_init_devices:
    008F 94F8      BCLR	7
(0065)  port_init();//调用端口初始化函数
    0090 DFD1      RCALL	_port_init
(0066)  timer1_init();//调用定时/计数器1初始化函数
    0091 DFDB      RCALL	_timer1_init
(0067) 
(0068)  MCUCR = 0x00;
    0092 2422      CLR	R2
    0093 BE25      OUT	0x35,R2
(0069)  GICR = 0x00;
    0094 BE2B      OUT	0x3B,R2
(0070)  TIMSK = 0x04;
    0095 E084      LDI	R24,4
    0096 BF89      OUT	0x39,R24
    0097 9508      RET
(0071) // SEI(); //开中断
(0072) }
(0073) 
(0074) void main(void)
(0075) {	 //主函数
(0076)  unsigned char pb_buf;//定义局部字符型变量
(0077)  init_devices();//调用芯片初始化函数
_main:
  pb_buf               --> R20
    0098 DFF6      RCALL	_init_devices
    0099 C004      RJMP	0x009E
(0078)  while(1) //等待PB0按键按下
(0079)  {		  //无键按下等待
(0080)   pb_buf=PINB & 0x01;
    009A B346      IN	R20,0x16
    009B 7041      ANDI	R20,1
(0081)   if(pb_buf==0x00){break;}
    009C F409      BNE	0x009E
    009D C001      RJMP	0x009F
    009E CFFB      RJMP	0x009A
(0082)  }//有键按下运行下面的程序
(0083)  SEI();//开中断
    009F 9478      BSET	7
    00A0 C00A      RJMP	0x00AB
(0084)  while(1)//循环运行
(0085)  {
(0086)   DDRC = 0xFF;//PC口做输出口
    00A1 EF8F      LDI	R24,0xFF
    00A2 BB84      OUT	0x14,R24
(0087)   delay_ms(500);//报警声
    00A3 EF04      LDI	R16,0xF4
    00A4 E011      LDI	R17,1
    00A5 DFAD      RCALL	_delay_ms
(0088)   DDRC = 0x00;//PC口做输入口
    00A6 2422      CLR	R2
    00A7 BA24      OUT	0x14,R2
(0089)   delay_ms(500);//间隔
FILE: <library>
    00A8 EF04      LDI	R16,0xF4
    00A9 E011      LDI	R17,1
    00AA DFA8      RCALL	_delay_ms
    00AB CFF5      RJMP	0x00A1
    00AC 9508      RET
push_gset5:
    00AD 92FA      ST	R15,-Y
    00AE 92EA      ST	R14,-Y
push_gset4:
    00AF 92DA      ST	R13,-Y
    00B0 92CA      ST	R12,-Y
push_gset3:
    00B1 92BA      ST	R11,-Y
    00B2 92AA      ST	R10,-Y
push_gset2:
    00B3 937A      ST	R23,-Y
    00B4 936A      ST	R22,-Y
push_gset1:
    00B5 935A      ST	R21,-Y
    00B6 934A      ST	R20,-Y
    00B7 9508      RET
pop_gset1:
    00B8 E0E1      LDI	R30,1
pop:
    00B9 9149      LD	R20,Y+
    00BA 9159      LD	R21,Y+
    00BB FDE0      SBRC	R30,0
    00BC 9508      RET
    00BD 9169      LD	R22,Y+
    00BE 9179      LD	R23,Y+
    00BF FDE1      SBRC	R30,1
    00C0 9508      RET
    00C1 90A9      LD	R10,Y+
    00C2 90B9      LD	R11,Y+
    00C3 FDE2      SBRC	R30,2
    00C4 9508      RET
    00C5 90C9      LD	R12,Y+
    00C6 90D9      LD	R13,Y+
    00C7 FDE3      SBRC	R30,3
    00C8 9508      RET
    00C9 90E9      LD	R14,Y+
    00CA 90F9      LD	R15,Y+
    00CB 9508      RET