timer1.lst

MEGA16 开发包3

__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 36E4      CPI	R30,0x64
    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 940E007D  CALL	_main
_exit:
    004A CFFF      RJMP	_exit
FILE: C:\DOCUME~1\Administrator\桌面\16BITT~1\timer1.c
(0001) //ICC-AVR application builder : 2007-5-6 21:30:57
(0002) // Target : M16
(0003) // Crystal: 8.0000Mhz
(0004) //TIMER1 initialize - prescale:64
(0005) // WGM: 10) PWM phz correct, TOP= ICRn
(0006) // desired value: 1Hz
(0007) // actual value:  1.000Hz (0.0%)
(0008) 
(0009) 
(0010) #include <iom16v.h>
(0011) #include <macros.h>
(0012) 
(0013) #define PWM1A     PORTD5  //OC1A   PD5
(0014) #define PWM1B     PORTD4  //OC1B   PD4
(0015) unsigned char OCAH;
(0016) unsigned char OCAL; 
(0017) unsigned char OCBH; 
(0018) unsigned char OCBL; 
(0019)  
(0020) void timer1_init(void)
(0021) {
(0022) TCCR1B = 0x00;          //stop
_timer1_init:
    004B 2422      CLR	R2
    004C BC2E      OUT	0x2E,R2
(0023) TCNT1H = 0x00;          //setup
    004D BC2D      OUT	0x2D,R2
(0024) TCNT1L = 0x01;
    004E E081      LDI	R24,1
    004F BD8C      OUT	0x2C,R24
(0025) OCR1AH = OCAH;
    0050 90200063  LDS	R2,OCAH
    0052 BC2B      OUT	0x2B,R2
(0026) OCR1AL = OCAL;
    0053 90200062  LDS	R2,OCAL
    0055 BC2A      OUT	0x2A,R2
(0027) OCR1BH = OCBH;
    0056 90200061  LDS	R2,OCBH
    0058 BC29      OUT	0x29,R2
(0028) OCR1BL = OCBL;
    0059 90200060  LDS	R2,OCBL
    005B BC28      OUT	0x28,R2
(0029) ICR1H = 0xff;          // pwm 的计数顶值
    005C EF8F      LDI	R24,0xFF
    005D BD87      OUT	0x27,R24
(0030) ICR1L = 0xFF;
    005E BD86      OUT	0x26,R24
(0031) TCCR1A = 0xA3;         // 匹配清零 top置位 
    005F EA83      LDI	R24,0xA3
    0060 BD8F      OUT	0x2F,R24
(0032) TCCR1B = 0x0B;         // start Timer
    0061 E08B      LDI	R24,0xB
    0062 BD8E      OUT	0x2E,R24
    0063 9508      RET
_init_devices:
  valuebl              --> Y+6
  valuebh              --> Y+4
  valueal              --> R20
  valueah              --> R22
    0064 940E0096  CALL	push_gset2
    0066 2F42      MOV	R20,R18
    0067 2F60      MOV	R22,R16
(0033) }
(0034) 
(0035) void init_devices(unsigned char valueah,unsigned char valueal,unsigned char valuebh,unsigned char valuebl)
(0036) {
(0037) 
(0038)  OCAH=valueah;
    0068 93600063  STS	OCAH,R22
(0039)  OCAL=valueal;
    006A 93400062  STS	OCAL,R20
(0040)  OCBH=valuebh;
    006C 800C      LDD	R0,Y+4
    006D 92000061  STS	OCBH,R0
(0041)  OCBL=valuebl;
    006F 800E      LDD	R0,Y+6
    0070 92000060  STS	OCBL,R0
(0042)  CLI();
    0072 94F8      BCLR	7
(0043)                          //disable all interrupts
(0044)  timer1_init();
    0073 DFD7      RCALL	_timer1_init
(0045)  MCUCR = 0x00;
    0074 2422      CLR	R2
    0075 BE25      OUT	0x35,R2
(0046)  GICR  = 0x00;
    0076 BE2B      OUT	0x3B,R2
(0047)  TIMSK = 0x04;           //timer interrupt sources
    0077 E084      LDI	R24,4
    0078 BF89      OUT	0x39,R24
(0048)  SEI();                  //re-enable interrupts
    0079 9478      BSET	7
    007A 940E008D  CALL	pop_gset2
    007C 9508      RET
_main:
    007D 9723      SBIW	R28,3
(0049) 
(0050) }
(0051) 
(0052) 
(0053) void main(void)
(0054) {
(0055)  PORTD&=(0<<PWM1A)&(0<<PWM1B);
    007E 2422      CLR	R2
    007F BA22      OUT	0x12,R2
(0056)  DDRD|=(1<<PWM1A)|(1<<PWM1B);
    0080 B381      IN	R24,0x11
    0081 6380      ORI	R24,0x30
    0082 BB81      OUT	0x11,R24
(0057)  init_devices(0x0f,0x45,0x0f,0xf0);       //修改实参即可改变占空比,最大值为0X0FFF;
    0083 EF80      LDI	R24,0xF0
    0084 838A      STD	Y+2,R24
    0085 E08F      LDI	R24,0xF
    0086 8388      STD	Y+0,R24
    0087 E425      LDI	R18,0x45
    0088 E00F      LDI	R16,0xF
    0089 DFDA      RCALL	_init_devices
(0058)  while(1);
FILE: <library>
    008A CFFF      RJMP	0x008A
    008B 9623      ADIW	R28,3
    008C 9508      RET
pop_gset2:
    008D E0E2      LDI	R30,2
    008E 940C009C  JMP	pop
push_gset5:
    0090 92FA      ST	R15,-Y
    0091 92EA      ST	R14,-Y
push_gset4:
    0092 92DA      ST	R13,-Y
    0093 92CA      ST	R12,-Y
push_gset3:
    0094 92BA      ST	R11,-Y
    0095 92AA      ST	R10,-Y
push_gset2:
    0096 937A      ST	R23,-Y
    0097 936A      ST	R22,-Y
push_gset1:
    0098 935A      ST	R21,-Y
    0099 934A      ST	R20,-Y
    009A 9508      RET
pop_gset1:
    009B E0E1      LDI	R30,1
pop:
    009C 9149      LD	R20,Y+
    009D 9159      LD	R21,Y+
    009E FDE0      SBRC	R30,0
    009F 9508      RET
    00A0 9169      LD	R22,Y+
    00A1 9179      LD	R23,Y+
    00A2 FDE1      SBRC	R30,1
    00A3 9508      RET
    00A4 90A9      LD	R10,Y+
    00A5 90B9      LD	R11,Y+
    00A6 FDE2      SBRC	R30,2
    00A7 9508      RET
    00A8 90C9      LD	R12,Y+
    00A9 90D9      LD	R13,Y+
    00AA FDE3      SBRC	R30,3
    00AB 9508      RET
    00AC 90E9      LD	R14,Y+
    00AD 90F9      LD	R15,Y+
    00AE 9508      RET