led.lst

AVRM16 学习板例程 LED 控制

__start:
__text_start:
    002B E5CF      LDI	R28,0x5F
    002C E0D4      LDI	R29,4
    002D BFCD      OUT	0x3D,R28
    002E BFDE      OUT	0x3E,R29
    002F 51C0      SUBI	R28,0x10
    0030 40D0      SBCI	R29,0
    0031 EA0A      LDI	R16,0xAA
    0032 8308      STD	Y+0,R16
    0033 2400      CLR	R0
    0034 E6E1      LDI	R30,0x61
    0035 E0F0      LDI	R31,0
    0036 E010      LDI	R17,0
    0037 36E1      CPI	R30,0x61
    0038 07F1      CPC	R31,R17
    0039 F011      BEQ	0x003C
    003A 9201      ST	R0,Z+
    003B CFFB      RJMP	0x0037
    003C 8300      STD	Z+0,R16
    003D E5E4      LDI	R30,0x54
    003E E0F0      LDI	R31,0
    003F E6A0      LDI	R26,0x60
    0040 E0B0      LDI	R27,0
    0041 E010      LDI	R17,0
    0042 35E5      CPI	R30,0x55
    0043 07F1      CPC	R31,R17
    0044 F021      BEQ	0x0049
    0045 95C8      LPM
    0046 9631      ADIW	R30,1
    0047 920D      ST	R0,X+
    0048 CFF9      RJMP	0x0042
    0049 940E0090  CALL	_main
_exit:
    004B CFFF      RJMP	_exit
FILE: F:\工程文件\程序\学习板例程\LED\led.c
(0001) //ICC-AVR application builder : 2006-11-28 21:10:05
(0002) // Target : M16
(0003) // Crystal: 6.0000Mhz
(0004) 
(0005) #include <iom16v.h>
(0006) #include <macros.h>
(0007) 
(0008) unsigned char LED_data=1;
(0009) void port_init(void)
(0010) {
(0011)  PORTA = 0xFF;//PA，PB，PC，PD口全部做输出，默认值1
_port_init:
    004C EF8F      LDI	R24,0xFF
    004D BB8B      OUT	0x1B,R24
(0012)  DDRA  = 0xFF;//
    004E BB8A      OUT	0x1A,R24
(0013)  PORTB = 0xFF;//
    004F BB88      OUT	0x18,R24
(0014)  DDRB  = 0xFF;//
    0050 BB87      OUT	0x17,R24
(0015)  PORTC = 0xFF; //m103 output only
    0051 BB85      OUT	0x15,R24
(0016)  DDRC  = 0xFF;//
    0052 BB84      OUT	0x14,R24
(0017)  PORTD = 0xFF;//
    0053 BB82      OUT	0x12,R24
(0018)  DDRD  = 0xFF;//
    0054 BB81      OUT	0x11,R24
(0019) }
    0055 9508      RET
(0020) 
(0021) //TIMER1 initialisation - prescale:1024
(0022) // WGM: 0) Normal, TOP=0xFFFF
(0023) // desired value: 1Hz
(0024) // actual value:  1.000Hz (0.0%)
(0025) void timer1_init(void)
(0026) {
(0027)  TCCR1B = 0x00; //stop
_timer1_init:
    0056 2422      CLR	R2
    0057 BC2E      OUT	0x2E,R2
(0028)  TCNT1H = 0xE9; //setup
    0058 EE89      LDI	R24,0xE9
    0059 BD8D      OUT	0x2D,R24
(0029)  TCNT1L = 0x1D;
    005A E18D      LDI	R24,0x1D
    005B BD8C      OUT	0x2C,R24
(0030)  OCR1AH = 0x16;
    005C E186      LDI	R24,0x16
    005D BD8B      OUT	0x2B,R24
(0031)  OCR1AL = 0xE3;
    005E EE83      LDI	R24,0xE3
    005F BD8A      OUT	0x2A,R24
(0032)  OCR1BH = 0x16;
    0060 E186      LDI	R24,0x16
    0061 BD89      OUT	0x29,R24
(0033)  OCR1BL = 0xE3;
    0062 EE83      LDI	R24,0xE3
    0063 BD88      OUT	0x28,R24
(0034)  ICR1H  = 0x16;
    0064 E186      LDI	R24,0x16
    0065 BD87      OUT	0x27,R24
(0035)  ICR1L  = 0xE3;
    0066 EE83      LDI	R24,0xE3
    0067 BD86      OUT	0x26,R24
(0036)  TCCR1A = 0x00;
    0068 BC2F      OUT	0x2F,R2
(0037)  TCCR1B = 0x05; //start Timer
    0069 E085      LDI	R24,5
    006A BD8E      OUT	0x2E,R24
(0038) }
    006B 9508      RET
_timer1_ovf_isr:
    006C 922A      ST	R2,-Y
    006D 938A      ST	R24,-Y
    006E B62F      IN	R2,0x3F
    006F 922A      ST	R2,-Y
(0039) 
(0040) #pragma interrupt_handler timer1_ovf_isr:9
(0041) void timer1_ovf_isr(void)
(0042) {
(0043)  //TIMER1 has overflowed
(0044)  TCNT1H = 0xE9; //reload counter high value
    0070 EE89      LDI	R24,0xE9
    0071 BD8D      OUT	0x2D,R24
(0045)  TCNT1L = 0x1D; //reload counter low value
    0072 E18D      LDI	R24,0x1D
    0073 BD8C      OUT	0x2C,R24
(0046)  LED_data<<=1;
    0074 90200060  LDS	R2,0x60
    0076 0C22      LSL	R2
    0077 92200060  STS	0x60,R2
(0047)  if(LED_data ==0)
    0079 2022      TST	R2
    007A F419      BNE	0x007E
(0048)  LED_data = 1;
    007B E081      LDI	R24,1
    007C 93800060  STS	0x60,R24
(0049)  PORTA=LED_data;
    007E 90200060  LDS	R2,0x60
    0080 BA2B      OUT	0x1B,R2
(0050)  
(0051)  
(0052) }
    0081 9029      LD	R2,Y+
    0082 BE2F      OUT	0x3F,R2
    0083 9189      LD	R24,Y+
    0084 9029      LD	R2,Y+
    0085 9518      RETI
(0053) 
(0054) //call this routine to initialise all peripherals
(0055) void init_devices(void)
(0056) {
(0057)  //stop errant interrupts until set up
(0058)  CLI(); //disable all interrupts
_init_devices:
    0086 94F8      BCLR	7
(0059)  port_init();
    0087 DFC4      RCALL	_port_init
(0060)  timer1_init();
    0088 DFCD      RCALL	_timer1_init
(0061) 
(0062)  MCUCR = 0x00;
    0089 2422      CLR	R2
    008A BE25      OUT	0x35,R2
(0063)  GICR  = 0x00;
    008B BE2B      OUT	0x3B,R2
(0064)  TIMSK = 0x04; //timer interrupt sources
    008C E084      LDI	R24,4
    008D BF89      OUT	0x39,R24
(0065)  SEI(); //re-enable interrupts
    008E 9478      BSET	7
(0066)  //all peripherals are now initialised
(0067) }
    008F 9508      RET
(0068) 
(0069) //
(0070) void main(void)
(0071) {
(0072)  init_devices();
(0073)  
(0074)  //insert your functional code here...
(0075) }
FILE: <library>
_main:
    0090 CFF5      RJMP	_init_devices