led.s

这是关于AVR单片机学习的初步开发

	.module led.c
	.area text(rom, con, rel)
	.dbfile C:\DOCUME~1\alf\MYDOCU~1\开发板\调试程序\led\led.c
	.dbfunc e port_init _port_init fV
	.even
_port_init::
	.dbline -1
	.dbline 9
; //ICC-AVR application builder : 2005-3-2 上午 11:46:11
; // Target : M8
; // Crystal: 11.059Mhz
; 
; #include <iom8v.h>
; #include <macros.h>
; 
; void port_init(void)
; {
	.dbline 10
;  PORTB = 0x00;
	clr R2
	out 0x18,R2
	.dbline 11
;  DDRB  = 0xFF;
	ldi R24,255
	out 0x17,R24
	.dbline 12
;  PORTC = 0x00; //m103 output only
	out 0x15,R2
	.dbline 13
;  DDRC  = 0x7F;
	ldi R24,127
	out 0x14,R24
	.dbline 14
;  PORTD = 0x00;
	out 0x12,R2
	.dbline 15
;  DDRD  = 0xFF;
	ldi R24,255
	out 0x11,R24
	.dbline -2
	.dbline 16
; }
L1:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e timer1_init _timer1_init fV
	.even
_timer1_init::
	.dbline -1
	.dbline 23
; 
; //TIMER1 initialisation - prescale:256
; // WGM: 0) Normal, TOP=0xFFFF
; // desired value: 1Sec
; // actual value:  1.000Sec (0.0%)
; void timer1_init(void)
; {
	.dbline 24
;  TCCR1B = 0x00; //stop
	clr R2
	out 0x2e,R2
	.dbline 25
;  TCNT1H = 0x57; //setup
	ldi R24,87
	out 0x2d,R24
	.dbline 26
;  TCNT1L = 0x41;
	ldi R24,65
	out 0x2c,R24
	.dbline 27
;  OCR1AH = 0xA8;
	ldi R24,168
	out 0x2b,R24
	.dbline 28
;  OCR1AL = 0xBF;
	ldi R24,191
	out 0x2a,R24
	.dbline 29
;  OCR1BH = 0xA8;
	ldi R24,168
	out 0x29,R24
	.dbline 30
;  OCR1BL = 0xBF;
	ldi R24,191
	out 0x28,R24
	.dbline 31
;  ICR1H  = 0xA8;
	ldi R24,168
	out 0x27,R24
	.dbline 32
;  ICR1L  = 0xBF;
	ldi R24,191
	out 0x26,R24
	.dbline 33
;  TCCR1A = 0x00;
	out 0x2f,R2
	.dbline 34
;  TCCR1B = 0x04; //start Timer
	ldi R24,4
	out 0x2e,R24
	.dbline -2
	.dbline 35
; }
L2:
	.dbline 0 ; func end
	ret
	.dbend
	.area vector(rom, abs)
	.org 16
	rjmp _timer1_ovf_isr
	.area text(rom, con, rel)
	.dbfile C:\DOCUME~1\alf\MYDOCU~1\开发板\调试程序\led\led.c
	.dbfunc e timer1_ovf_isr _timer1_ovf_isr fV
	.even
_timer1_ovf_isr::
	st -y,R2
	st -y,R24
	in R2,0x3f
	st -y,R2
	.dbline -1
	.dbline 39
; 
; #pragma interrupt_handler timer1_ovf_isr:9
; void timer1_ovf_isr(void)
; {
	.dbline 41
;  //TIMER1 has overflowed
;  TCNT1H = 0x57; //reload counter high value
	ldi R24,87
	out 0x2d,R24
	.dbline 42
;  TCNT1L = 0x41; //reload counter low value
	ldi R24,65
	out 0x2c,R24
	.dbline 46
;  
;  
;  
;  PORTB = ~PORTB;
	in R2,0x18
	com R2
	out 0x18,R2
	.dbline 47
;  PORTC = ~PORTC;
	in R2,0x15
	com R2
	out 0x15,R2
	.dbline 48
;  PORTD = ~PORTD;
	in R2,0x12
	com R2
	out 0x12,R2
	.dbline 50
;  
;  TCCR1A = 0x00;
	clr R2
	out 0x2f,R2
	.dbline 51
;  TCCR1B = 0x04; //start Timer
	ldi R24,4
	out 0x2e,R24
	.dbline -2
	.dbline 52
; }
L3:
	ld R2,y+
	out 0x3f,R2
	ld R24,y+
	ld R2,y+
	.dbline 0 ; func end
	reti
	.dbend
	.dbfunc e init_devices _init_devices fV
	.even
_init_devices::
	.dbline -1
	.dbline 56
; 
; //call this routine to initialise all peripherals
; void init_devices(void)
; {
	.dbline 58
;  //stop errant interrupts until set up
;  CLI(); //disable all interrupts
	cli
	.dbline 59
;  port_init();
	rcall _port_init
	.dbline 60
;  timer1_init();
	rcall _timer1_init
	.dbline 62
; 
;  MCUCR = 0x00;
	clr R2
	out 0x35,R2
	.dbline 63
;  GICR  = 0x00;
	out 0x3b,R2
	.dbline 64
;  TIMSK = 0x04; //timer interrupt sources
	ldi R24,4
	out 0x39,R24
	.dbline 65
;  SEI(); //re-enable interrupts
	sei
	.dbline -2
	.dbline 67
;  //all peripherals are now initialised
; }
L4:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e main _main fV
	.even
_main::
	.dbline -1
	.dbline 71
; 
; 
; void main(void)
; {
	.dbline 72
; init_devices();
	rcall _init_devices
L6:
	.dbline 73
L7:
	.dbline 73
	rjmp L6
X0:
	.dbline -2
	.dbline 75
; while(1);
; 
; }
L5:
	.dbline 0 ; func end
	ret
	.dbend