diy0816-07.lst

AVR单片机应用开发指南及实例,包含许多实例,挺不错

__text_start:
__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 36E3      CPI	R30,0x63
    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 940E008F  CALL	_main
_exit:
    004A CFFF      RJMP	_exit
FILE: D:\SL-DIY~1\diy0208_16_7\diy0816_07.c
(0001) //7.	I/O端口进一步应用。
(0002) //用图6的ATmega16的PB.0端口开关(可用接插线接VCC或GND代替)
(0003) //控制PA口8个LED灯作跑马灯控制;可作广告灯用。
(0004) //请你编写出其它花样的广告灯程序!
(0005) //     www.sl.com.cn
(0006) //     [e-mail]    05-11-12
(0007) // Target : mega16     Crystal: 8.0000Mhz
(0008) 
(0009) #include <iom16v.h>
(0010) #include <macros.h>
(0011)  
(0012) #define delay_time 500
(0013)  
(0014) unsigned char pa_buf,pb_buf,loop_timers;
(0015) 		 //定义为字符型变量
(0016) void delay_us(int time)
(0017) {   //微秒延时            
(0018)  do
(0019)  {
(0020)   time--;
_delay_us:
  time                 --> R16
    004B 5001      SUBI	R16,1
    004C 4010      SBCI	R17,0
(0021)  }	
(0022)   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 940E0099  CALL	push_gset1
    0055 01A8      MOVW	R20,R16
(0023) }	  
(0024) 
(0025) void delay_ms(unsigned int time)
(0026) {   //毫秒延时
    0056 C005      RJMP	0x005C
(0027)  while(time!=0)
(0028)  {		
(0029)   delay_us(1000);
    0057 EE08      LDI	R16,0xE8
    0058 E013      LDI	R17,3
    0059 DFF1      RCALL	_delay_us
(0030)   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 940E009C  CALL	pop_gset1
    0061 9508      RET
(0031)  }
(0032) }		
(0033) 
(0034) void shiyan7()
(0035) {
(0036)  DDRB=0x00;PORTB=0xFF;//PB口输入，内部上拉
_shiyan7:
    0062 2422      CLR	R2
    0063 BA27      OUT	0x17,R2
    0064 EF8F      LDI	R24,0xFF
    0065 BB88      OUT	0x18,R24
(0037)  DDRA=0xFF;PORTA=0xFF;//PA口输出
    0066 BB8A      OUT	0x1A,R24
    0067 BB8B      OUT	0x1B,R24
    0068 C024      RJMP	0x008D
(0038)  while(1)//循环运行
(0039)  {
(0040)   pb_buf=PINB & 0x01;//检测PINB0是否为0，为1重新检测
    0069 B386      IN	R24,0x16
    006A 7081      ANDI	R24,1
    006B 93800061  STS	pb_buf,R24
(0041)   if(pb_buf==0x00)//为0，运行跑马灯程序，PA口的LED依次点亮
    006D 2388      TST	R24
    006E F4E1      BNE	0x008B
(0042)   {
(0043)    pa_buf=0x01;//送初值
    006F E081      LDI	R24,1
    0070 93800062  STS	pa_buf,R24
(0044)    for(loop_timers=0;loop_timers<8;loop_timers++)//循环8次
    0072 2422      CLR	R2
    0073 92200060  STS	loop_timers,R2
    0075 C011      RJMP	0x0087
(0045)    {PORTA=~pa_buf;pa_buf=pa_buf<<1;delay_ms(delay_time/2);}
    0076 90200062  LDS	R2,pa_buf
    0078 9420      COM	R2
    0079 BA2B      OUT	0x1B,R2
    007A 90200062  LDS	R2,pa_buf
    007C 0C22      LSL	R2
    007D 92200062  STS	pa_buf,R2
    007F EF0A      LDI	R16,0xFA
    0080 E010      LDI	R17,0
    0081 DFD1      RCALL	_delay_ms
    0082 91800060  LDS	R24,loop_timers
    0084 5F8F      SUBI	R24,0xFF
    0085 93800060  STS	loop_timers,R24
    0087 91800060  LDS	R24,loop_timers
    0089 3088      CPI	R24,0x8
    008A F358      BCS	0x0076
(0046)    //取反输出，左移一位，延时
(0047)   }//循环检测 
(0048)   PORTA=0xff;//为1，熄灭PA口的LED
    008B EF8F      LDI	R24,0xFF
    008C BB8B      OUT	0x1B,R24
    008D CFDB      RJMP	0x0069
    008E 9508      RET
(0049)  }
(0050) }
(0051) 
(0052) void main()
(0053) {
(0054)  shiyan7();//实验7函数
FILE: <library>
_main:
    008F DFD2      RCALL	_shiyan7
    0090 9508      RET
push_gset5:
    0091 92FA      ST	R15,-Y
    0092 92EA      ST	R14,-Y
push_gset4:
    0093 92DA      ST	R13,-Y
    0094 92CA      ST	R12,-Y
push_gset3:
    0095 92BA      ST	R11,-Y
    0096 92AA      ST	R10,-Y
push_gset2:
    0097 937A      ST	R23,-Y
    0098 936A      ST	R22,-Y
push_gset1:
    0099 935A      ST	R21,-Y
    009A 934A      ST	R20,-Y
    009B 9508      RET
pop_gset1:
    009C E0E1      LDI	R30,1
pop:
    009D 9149      LD	R20,Y+
    009E 9159      LD	R21,Y+
    009F FDE0      SBRC	R30,0
    00A0 9508      RET
    00A1 9169      LD	R22,Y+
    00A2 9179      LD	R23,Y+
    00A3 FDE1      SBRC	R30,1
    00A4 9508      RET
    00A5 90A9      LD	R10,Y+
    00A6 90B9      LD	R11,Y+
    00A7 FDE2      SBRC	R30,2
    00A8 9508      RET
    00A9 90C9      LD	R12,Y+
    00AA 90D9      LD	R13,Y+
    00AB FDE3      SBRC	R30,3
    00AC 9508      RET
    00AD 90E9      LD	R14,Y+
    00AE 90F9      LD	R15,Y+
    00AF 9508      RET