main_18b20.s

F:程序DS18B20.rar索读取温度

	.module main_18b20.c
	.area text(rom, con, rel)
	.dbfile F:\try\DS18B20\main_18b20.c
	.dbfunc e port_init _port_init fV
	.even
_port_init::
	.dbline -1
	.dbline 10
; //ICC-AVR application builder : 2008-4-7 PM 04:31:51
; // Target : M16
; // Crystal: 8.0000Mhz
; 
; #include <iom16v.h>
; #include <macros.h>
; #include "DS18B20.h"
; 
; void port_init(void)
; {
	.dbline 11
;  PORTA = 0x00;
	clr R2
	out 0x1b,R2
	.dbline 12
;  DDRA  = 0x00;
	out 0x1a,R2
	.dbline 13
;  PORTB = 0x00;
	out 0x18,R2
	.dbline 14
;  DDRB  = 0x00;
	out 0x17,R2
	.dbline 15
;  PORTC = 0x00; //m103 output only
	out 0x15,R2
	.dbline 16
;  DDRC  = 0xFF;
	ldi R24,255
	out 0x14,R24
	.dbline 17
;  PORTD = 0x00;
	out 0x12,R2
	.dbline 18
;  DDRD  = 0x00;
	out 0x11,R2
	.dbline -2
L1:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e timer0_init _timer0_init fV
	.even
_timer0_init::
	.dbline -1
	.dbline 26
; }
; 
; //TIMER0 initialize - prescale:1024
; // WGM: Normal
; // desired value: 25mSec
; // actual value: 24.960mSec (0.2%)
; void timer0_init(void)
; {
	.dbline 27
;  TCCR0 = 0x00; //stop
	clr R2
	out 0x33,R2
	.dbline 28
;  TCNT0 = 0x3D; //set count
	ldi R24,61
	out 0x32,R24
	.dbline 29
;  OCR0  = 0xC3;  //set compare
	ldi R24,195
	out 0x3c,R24
	.dbline 30
;  TCCR0 = 0x05; //start timer
	ldi R24,5
	out 0x33,R24
	.dbline -2
L2:
	.dbline 0 ; func end
	ret
	.dbend
	.area vector(rom, abs)
	.org 36
	jmp _timer0_ovf_isr
	.area text(rom, con, rel)
	.dbfile F:\try\DS18B20\main_18b20.c
	.dbfunc e timer0_ovf_isr _timer0_ovf_isr fV
	.even
_timer0_ovf_isr::
	st -y,R24
	in R24,0x3f
	st -y,R24
	.dbline -1
	.dbline 35
; }
; 
; #pragma interrupt_handler timer0_ovf_isr:iv_TIM0_OVF
; void timer0_ovf_isr(void)
; {
	.dbline 36
;  TCNT0 = 0x3D; //reload counter value
	ldi R24,61
	out 0x32,R24
	.dbline -2
L3:
	.dbline 0 ; func end
	ld R24,y+
	out 0x3f,R24
	ld R24,y+
	reti
	.dbend
	.dbfunc e uart0_init _uart0_init fV
	.even
_uart0_init::
	.dbline -1
	.dbline 43
; }
; 
; //UART0 initialize
; // desired baud rate: 9600
; // actual: baud rate:9615 (0.2%)
; void uart0_init(void)
; {
	.dbline 44
;  UCSRB = 0x00; //disable while setting baud rate
	clr R2
	out 0xa,R2
	.dbline 45
;  UCSRA = 0x00;
	out 0xb,R2
	.dbline 46
;  UCSRC = BIT(URSEL) | 0x06;
	ldi R24,134
	out 0x20,R24
	.dbline 47
;  UBRRL = 0x33; //set baud rate lo
	ldi R24,51
	out 0x9,R24
	.dbline 48
;  UBRRH = 0x00; //set baud rate hi
	out 0x20,R2
	.dbline 49
;  UCSRB = 0x98;
	ldi R24,152
	out 0xa,R24
	.dbline -2
L4:
	.dbline 0 ; func end
	ret
	.dbend
	.area vector(rom, abs)
	.org 44
	jmp _uart0_rx_isr
	.area text(rom, con, rel)
	.dbfile F:\try\DS18B20\main_18b20.c
	.dbfunc e uart0_rx_isr _uart0_rx_isr fV
	.even
_uart0_rx_isr::
	.dbline -1
	.dbline 54
; }
; 
; #pragma interrupt_handler uart0_rx_isr:iv_USART0_RXC
; void uart0_rx_isr(void)
; {
	.dbline -2
L5:
	.dbline 0 ; func end
	reti
	.dbend
	.dbfunc e init_devices _init_devices fV
	.even
_init_devices::
	.dbline -1
	.dbline 60
;  //uart has received a character in UDR
; }
; 
; //call this routine to initialize all peripherals
; void init_devices(void)
; {
	.dbline 62
;  //stop errant interrupts until set up
;  CLI(); //disable all interrupts
	cli
	.dbline 63
;  port_init();
	xcall _port_init
	.dbline 64
;  timer0_init();
	xcall _timer0_init
	.dbline 65
;  uart0_init();
	xcall _uart0_init
	.dbline 67
; 
;  MCUCR = 0x00;
	clr R2
	out 0x35,R2
	.dbline 68
;  GICR  = 0x00;
	out 0x3b,R2
	.dbline 69
;  TIMSK = 0x01; //timer interrupt sources
	ldi R24,1
	out 0x39,R24
	.dbline 70
;  SEI(); //re-enable interrupts
	sei
	.dbline -2
L6:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e putchar _putchar fV
;          TmpCh -> R16
	.even
_putchar::
	.dbline -1
	.dbline 76
;  //all peripherals are now initialized
; }
; 
;  //输出一个字符
; void putchar(unsigned char TmpCh)
; {	
L8:
	.dbline 77
; 	while( !(UCSRA & (1<<UDRE)) );
L9:
	.dbline 77
	sbis 0xb,5
	rjmp L8
X0:
	.dbline 78
; 	UDR = TmpCh;	
	out 0xc,R16
	.dbline -2
L7:
	.dbline 0 ; func end
	ret
	.dbsym r TmpCh 16 c
	.dbend
	.dbfunc e main _main fV
;        tempout -> R10
	.even
_main::
	.dbline -1
	.dbline 82
; }
; 
; void main(void)
; {
	.dbline 83
;   unsigned char tempout = 0;
	clr R10
	.dbline 84
;   init_devices();
	xcall _init_devices
	.dbline 85
;   init_1820();
	xcall _init_1820
	.dbline 86
;   putchar(0xFF);
	ldi R16,255
	xcall _putchar
	.dbline 87
;   delay_nms(200);
	ldi R16,200
	ldi R17,0
	xcall _delay_nms
	.dbline 88
;   ;
	xjmp L13
L12:
	.dbline 90
;   while(1)
;      {
	.dbline 91
; 	  tempout = gettemp();
	xcall _gettemp
	mov R10,R16
	.dbline 92
; 	  delay_nms(30);
	ldi R16,30
	ldi R17,0
	xcall _delay_nms
	.dbline 93
; 	  putchar(tempout);
	mov R16,R10
	xcall _putchar
	.dbline 95
; 	  //putchar(wml);
; 	  delay_nms(3000); 
	ldi R16,3000
	ldi R17,11
	xcall _delay_nms
	.dbline 96
; 	 };
L13:
	.dbline 89
	xjmp L12
X1:
	.dbline -2
L11:
	.dbline 0 ; func end
	ret
	.dbsym r tempout 10 c
	.dbend
; };