time0.s

步进电机的控制程序

	.module time0.c
	.area data(ram, con, rel)
_i::
	.blkb 1
	.area idata
	.byte 0
	.area data(ram, con, rel)
	.dbfile E:\ICCAVR编程学习\定时计数器学习\time0.c
	.dbsym e i _i c
_timecount::
	.blkb 2
	.area idata
	.word 0
	.area data(ram, con, rel)
	.dbfile E:\ICCAVR编程学习\定时计数器学习\time0.c
	.dbsym e timecount _timecount i
	.area text(rom, con, rel)
	.dbfile E:\ICCAVR编程学习\定时计数器学习\time0.c
	.dbfunc e port_init _port_init fV
	.even
_port_init::
	.dbline -1
	.dbline 12
; //ICC-AVR application builder : 2007-3-8 22:08:41
; // Target : M8
; // Crystal: 1.0000Mhz
; 
; #include <iom8v.h>
; #include <macros.h>
; #include <stdio.h>
; 
; char i=0;
; unsigned int timecount=0;
; void port_init(void)
; {
	.dbline 13
;  PORTB = 0xFF;
	ldi R24,255
	out 0x18,R24
	.dbline 14
;  DDRB  = 0xFF;
	out 0x17,R24
	.dbline 15
;  PORTC = 0x7F; //m103 output only
	ldi R24,127
	out 0x15,R24
	.dbline 16
;  DDRC  = 0x00;
	clr R2
	out 0x14,R2
	.dbline 17
;  PORTD = 0xFF;
	ldi R24,255
	out 0x12,R24
	.dbline 18
;  DDRD  = 0xFF;
	out 0x11,R24
	.dbline -2
L1:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e timer0_init _timer0_init fV
	.even
_timer0_init::
	.dbline -1
	.dbline 25
; }
; 
; //TIMER0 initialize - prescale:8
; // desired value: 1Hz
; // actual value: Out of range
; void timer0_init(void)
; {
	.dbline 26
;  TCCR0 = 0x00; //stop
	clr R2
	out 0x33,R2
	.dbline 27
;  TCNT0 = 6 /*INVALID SETTING*/; //set count
	ldi R24,6
	out 0x32,R24
	.dbline 28
;  TCCR0 = 0x02; //start timer
	ldi R24,2
	out 0x33,R24
	.dbline -2
L2:
	.dbline 0 ; func end
	ret
	.dbend
	.area vector(rom, abs)
	.org 18
	rjmp _timer0_ovf_isr
	.area text(rom, con, rel)
	.dbfile E:\ICCAVR编程学习\定时计数器学习\time0.c
	.dbfunc e timer0_ovf_isr _timer0_ovf_isr fV
	.even
_timer0_ovf_isr::
	st -y,R2
	st -y,R3
	st -y,R24
	st -y,R25
	st -y,R30
	in R2,0x3f
	st -y,R2
	.dbline -1
	.dbline 34
	.dbline 44
	lds R24,_timecount
	lds R25,_timecount+1
	adiw R24,1
	sts _timecount+1,R25
	sts _timecount,R24
	cpi R24,232
	ldi R30,3
	cpc R25,R30
	brne L4
	.dbline 45
	.dbline 46
	ldi R24,128
	ldi R25,0
	in R2,0x12
	clr R3
	eor R2,R24
	eor R3,R25
	out 0x12,R2
	.dbline 47
	clr R2
	clr R3
	sts _timecount+1,R3
	sts _timecount,R2
	.dbline 48
L4:
	.dbline -2
L3:
	ld R2,y+
	out 0x3f,R2
	ld R30,y+
	ld R25,y+
	ld R24,y+
	ld R3,y+
	ld R2,y+
	.dbline 0 ; func end
	reti
	.dbend
	.dbfunc e init_devices _init_devices fV
	.even
_init_devices::
	.dbline -1
	.dbline 54
;  
; }
; 
; #pragma interrupt_handler timer0_ovf_isr:10
; void timer0_ovf_isr(void)
; {
; //TCNT0 = 6 /*INVALID SETTING*/; //reload counter value
; /* if(i<10)                    //i决定循环基准时间的次数 
;   {TCNT0=0X3A;             //重设初始值  100ms 
;    i++;                    //累加基准时间 
;   } 
;  else 
;   {PORTD^=BIT(0);          //翻转PD口电平  
;    i=0;                    //定时全局变量恢复初始值 
;   }  */
; if(++timecount==1000)
;  {
;  PORTD=PORTD^0x80;
;  timecount=0;
;   }
; }
; 
; 
; //call this routine to initialize all peripherals
; void init_devices(void)
; {
	.dbline 56
;  //stop errant interrupts until set up
;  CLI(); //disable all interrupts
	cli
	.dbline 57
;  timer0_init();
	rcall _timer0_init
	.dbline 58
;  port_init();
	rcall _port_init
	.dbline 60
; 
;  MCUCR = 0x00;
	clr R2
	out 0x35,R2
	.dbline 61
;  GICR  = 0x00;
	out 0x3b,R2
	.dbline 62
;  TIMSK = 0x01; //timer interrupt sources
	ldi R24,1
	out 0x39,R24
	.dbline 63
;  SEI(); //re-enable interrupts
	sei
	.dbline -2
L6:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e main _main fV
	.even
_main::
	.dbline -1
	.dbline 69
;  //all peripherals are now initialized
; }
; 
; //
; void main(void)
; {
	.dbline 79
;  /*TCCR0=0X05;                 //时钟1024分频 
;  TCNT0=0X3A;                 //定时器计数初始值 100ms 
;  TIMSK=0X01;            //允许定时器0中断 
;  SEI();                    //开全局中断 
;  DDRB=0XFF; 
;  DDRD=0XFF; 
;  PORTB=0Xff; 
;  PORTD=0XFF; */
; 
; init_devices();
	rcall _init_devices
L8:
	.dbline 80
L9:
	.dbline 80
	rjmp L8
X0:
	.dbline -2
L7:
	.dbline 0 ; func end
	ret
	.dbend