key.lst

16个单片机c语言实验程序

__start:
__text_start:
      46 EFCF      LDI	R28,0xFF
      47 E1D0      LDI	R29,0x10
      48 BFCD      OUT	0x3D,R28
      49 BFDE      OUT	0x3E,R29
      4A 51CE      SUBI	R28,0x1E
      4B 40D0      SBCI	R29,0
      4C EA0A      LDI	R16,0xAA
      4D 8308      STD	Y+0,R16
      4E 2400      CLR	R0
      4F E0E0      LDI	R30,0
      50 E0F1      LDI	R31,1
      51 E011      LDI	R17,1
      52 30E0      CPI	R30,0
      53 07F1      CPC	R31,R17
      54 F011      BEQ	0x0057
      55 9201      ST	R0,Z+
      56 CFFB      RJMP	0x0052
      57 8300      STD	Z+0,R16
      58 E8EC      LDI	R30,0x8C
      59 E0F0      LDI	R31,0
      5A E0A0      LDI	R26,0
      5B E0B1      LDI	R27,1
      5C E010      LDI	R17,0
      5D E000      LDI	R16,0
      5E BF0B      OUT	0x3B,R16
      5F 38EC      CPI	R30,0x8C
      60 07F1      CPC	R31,R17
      61 F021      BEQ	0x0066
      62 95C8      LPM
      63 9631      ADIW	R30,1
      64 920D      ST	R0,X+
      65 CFF9      RJMP	0x005F
      66 940E 0072 CALL	_main
_exit:
      68 CFFF      RJMP	_exit
FILE: D:\16实验程序\key\key.c
(0001) //独立按键的程序
(0002) //使用按键：k1,k2,k3,k4
(0003) //按下按键时相应的led会点亮
(0004) 
(0005) #define uchar unsigned char 
(0006) #define uint unsigned int 
(0007) #include<iom128v.h>
(0008) 
(0009) //延时函数
(0010) void s_ms(unsigned int t)
(0011) {
(0012)     for(;t>1;t--)
_s_ms:
  t                    --> R16
      69 C002      RJMP	0x006C
      6A 5001      SUBI	R16,1
      6B 4010      SBCI	R17,0
      6C E081      LDI	R24,1
      6D E090      LDI	R25,0
      6E 1780      CP	R24,R16
      6F 0791      CPC	R25,R17
      70 F3C8      BCS	0x006A
      71 9508      RET
(0013)     {
(0014)     }
(0015) }
(0016) 
(0017) void main()
(0018) {
(0019) uchar tem,key;
(0020) //端口初始化
(0021) DDRD=0xff;
_main:
  key                  --> R10
  tem                  --> R20
      72 EF8F      LDI	R24,0xFF
      73 BB81      OUT	0x11,R24
(0022) PORTD=0xff;
      74 BB82      OUT	0x12,R24
(0023) DDRB=0x00;
      75 2422      CLR	R2
      76 BA27      OUT	0x17,R2
(0024) PORTB=0xff;
      77 BB88      OUT	0x18,R24
      78 C00A      RJMP	0x0083
(0025) while(1)
(0026)    {
(0027)    tem=PINB;       //读取端口b
      79 B346      IN	R20,0x16
(0028)    if(tem!=0xff)   //判断是否有按键按下
      7A 3F4F      CPI	R20,0xFF
      7B F039      BEQ	0x0083
(0029)      {
(0030) 	  s_ms(500);   //排除按键抖动和抗干扰
      7C EF04      LDI	R16,0xF4
      7D E011      LDI	R17,1
      7E DFEA      RCALL	_s_ms
(0031) 	  key=PINB;
      7F B2A6      IN	R10,0x16
(0032) 	  if(key==tem)
      80 16A4      CP	R10,R20
      81 F409      BNE	0x0083
(0033) 	    {
(0034)          PORTD=key;  //端口D输出按键值
FILE: <library>
      82 BAA2      OUT	0x12,R10
      83 CFF5      RJMP	0x0079
      84 9508      RET