1.s

测试18b20的程序

L28:
	xcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym l data 4 c
	.dbsym r Y 22 c
	.dbsym r X 20 c
	.dbend
	.dbfunc e delay _delay fV
;              x -> R16,R17
	.even
_delay::
	.dbline -1
	.dbline 155
;   
; }
; 
; 
; 
; 
; 
; 
; 
; /////////////////////////////////////////
; void delay(uint x)  //1.5us左右 
; { 
	xjmp L31
L30:
	.dbline 157
	.dbline 158
	subi R16,1
	sbci R17,0
	.dbline 159
L31:
	.dbline 156
;      while(x) 
	cpi R16,0
	cpc R16,R17
	brne L30
X0:
	.dbline -2
L29:
	.dbline 0 ; func end
	ret
	.dbsym r x 16 i
	.dbend
	.dbfunc e init_1820 _init_1820 fV
	.even
_init_1820::
	.dbline -1
	.dbline 164
;     { 
;        x--; 
;     } 
; } 
;  
; //////////////////////////////////////////
; void init_1820() 
; { 
	.dbline 165
;     PORTD|=(1<<6);    
	sbi 0x12,6
	.dbline 166
;     PORTD&=~(1<<6); 
	cbi 0x12,6
	.dbline 167
;     delay(3000);    //480us以上 
	ldi R16,3000
	ldi R17,11
	xcall _delay
	.dbline 168
;     PORTD|=(1<<6); 
	sbi 0x12,6
	.dbline 169
;     DDRD&=~(1<<6); 
	cbi 0x11,6
	.dbline 170
;     delay(40);     //15~60us 
	ldi R16,40
	ldi R17,0
	xcall _delay
L34:
	.dbline 172
	.dbline 176
L35:
	.dbline 171
;     while(PIND&(1<<6)) 
	sbic 0x10,6
	rjmp L34
	.dbline 177
;     { 
;       // disp_led(3,0); 
;       // for(;;) 
;        //{} 
;    } 
;     DDRD|=(1<<6); 
	sbi 0x11,6
	.dbline 178
;     PORTD|=(1<<6); 
	sbi 0x12,6
	.dbline 179
;     delay(150);   //60~240us 
	ldi R16,150
	ldi R17,0
	xcall _delay
	.dbline -2
L33:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e write_1820 _write_1820 fI
;              m -> R20
;              x -> R22
	.even
_write_1820::
	xcall push_gset2
	mov R22,R16
	.dbline -1
	.dbline 183
; }
; ///////////////////////////////////////////////////////
; write_1820(uchar x) 
; {    
	.dbline 185
;      uchar m; 
;     for(m=0;m<8;m++) 
	clr R20
	xjmp L41
L38:
	.dbline 186
;     { 
	.dbline 187
;          PORTD&=~(1<<6); 
	cbi 0x12,6
	.dbline 188
;        if(x&(1<<m))    //写数据，从低位开始 
	ldi R16,1
	mov R17,R20
	xcall lsl8
	mov R2,R22
	and R2,R16
	breq L42
	.dbline 189
;        PORTD|=(1<<6); 
	sbi 0x12,6
	xjmp L43
L42:
	.dbline 191
;        else 
;        PORTD&=~(1<<6); 
	cbi 0x12,6
L43:
	.dbline 192
	ldi R16,40
	ldi R17,0
	xcall _delay
	.dbline 193
	sbi 0x12,6
	.dbline 194
L39:
	.dbline 185
	inc R20
L41:
	.dbline 185
	cpi R20,8
	brlo L38
	.dbline 195
;        delay(40);   //15~60us 
;        PORTD|=(1<<6); 
;     } 
;      PORTD|=(1<<6); 
	sbi 0x12,6
	.dbline -2
L37:
	xcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym r m 20 c
	.dbsym r x 22 c
	.dbend
	.dbfunc e read_1820 _read_1820 fc
;           temp -> R20
;              k -> R22
;              n -> R10
	.even
_read_1820::
	xcall push_gset3
	.dbline -1
	.dbline 200
; } 
; 
; //////////////////////////////////////////////
; uchar read_1820() 
; {     
	.dbline 202
;     uchar temp,k,n; 
;            temp=0; 
	clr R20
	.dbline 203
;     for(n=0;n<8;n++) 
	clr R10
	xjmp L48
L45:
	.dbline 204
;        { 
	.dbline 205
;       PORTD&=~(1<<6); 
	cbi 0x12,6
	.dbline 207
;       //delay(2);       
;       PORTD|=(1<<6); 
	sbi 0x12,6
	.dbline 209
;       //delay(3);     
;       DDRD&=~(1<<6); 
	cbi 0x11,6
	.dbline 210
;       k=(PIND&(1<<6));    //读数据,从低位开始 
	in R22,0x10
	andi R22,64
	.dbline 211
;       if(k) 
	breq L49
	.dbline 212
;       temp|=(1<<n); 
	ldi R16,1
	mov R17,R10
	xcall lsl8
	or R20,R16
	xjmp L50
L49:
	.dbline 214
;       else 
;       temp&=~(1<<n); 
	ldi R16,1
	mov R17,R10
	xcall lsl8
	mov R2,R16
	com R2
	and R20,R2
L50:
	.dbline 215
	ldi R16,50
	ldi R17,0
	xcall _delay
	.dbline 216
	sbi 0x11,6
	.dbline 217
L46:
	.dbline 203
	inc R10
L48:
	.dbline 203
	mov R24,R10
	cpi R24,8
	brlo L45
	.dbline 218
;       delay(50); //60~120us     
;       DDRD|=(1<<6); 
;         } 
;    return (temp); 
	mov R16,R20
	.dbline -2
L44:
	xcall pop_gset3
	.dbline 0 ; func end
	ret
	.dbsym r temp 20 c
	.dbsym r k 22 c
	.dbsym r n 10 c
	.dbend
	.dbfunc e send_byte _send_byte fV
;              i -> R20
;              x -> R22
	.even
_send_byte::
	xcall push_gset2
	mov R22,R16
	.dbline -1
	.dbline 222
; }  
; ////////////////////////////////////////////////
; void send_byte(uchar x)    //以下为显示程序 
; { 
	.dbline 224
;    uchar i; 
;     for(i=0;i<8;i++) 
	clr R20
	xjmp L55
L52:
	.dbline 225
;     { 
	.dbline 226
;        PORTC&=~(1<<5);   // PC5为底  为164提供时钟信号 
	cbi 0x15,5
	.dbline 227
;       if((x&(1<<(7-i)))||((dp==1)&&(i==0))) //判断每位数据的电平,及小数点判断 
	ldi R17,7
	sub R17,R20
	ldi R16,1
	xcall lsl8
	mov R2,R22
	and R2,R16
	brne L58
	lds R24,_dp
	cpi R24,1
	brne L56
	tst R20
	brne L56
L58:
	.dbline 228
;       PORTC|=(1<<4);                           //若为高着PC4输出高电平    
	sbi 0x15,4
	xjmp L57
L56:
	.dbline 230
;       else 
;       PORTC&=~(1<<4);                           //若为低着输出低电平 
	cbi 0x15,4
L57:
	.dbline 231
	sbi 0x15,5
	.dbline 232
L53:
	.dbline 224
	inc R20
L55:
	.dbline 224
	cpi R20,8
	brlo L52
	.dbline -2
L51:
	xcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym r i 20 c
	.dbsym r x 22 c
	.dbend
	.dbfunc e main _main fV
;           teml -> R20
;           temh -> R22
;              i -> R10
	.even
_main::
	sbiw R28,2
	.dbline -1
	.dbline 237
;       PORTC|=(1<<5);   //PC5 提供始终信号 
;    } 
;    //PORTC|=((1<<0)|(1<<1)|(1<<2)); 
; } 
; ////////////////////////////////////////////////
; void main(void) //主函数 
; { 
	.dbline 239
;  // disp_led(0,0); 
;   delay(2000); 
	ldi R16,2000
	ldi R17,7
	xcall _delay
	.dbline 240
;   OSCCAL=0X9d;//系统时钟校准，不同的芯片和不同的频率， 
	ldi R24,157
	out 0x31,R24
	.dbline 241
;   DDRC=0xff; 
	ldi R24,255
	out 0x14,R24
	.dbline 242
;   DDRD=0XFF;
	out 0x11,R24
	.dbline 243
;   DDRA=0XFF;
	out 0x1a,R24
	.dbline 244
;  PORTA=0XF3; 
	ldi R24,243
	out 0x1b,R24
	.dbline 245
;   PORTD=0XFF; 
	ldi R24,255
	out 0x12,R24
	.dbline 246
;   WDR();       //看门狗计数清零 
	wdr
	.dbline 247
;   LCD_init();
	xcall _LCD_init
	.dbline 248
;   WDTCR=0x0F; 
	ldi R24,15
	out 0x21,R24
	.dbline 249
;   PORTC=0xff; 
	ldi R24,255
	out 0x15,R24
	xjmp L61
L60:
	.dbline 251
;   while(1) 
;    { 
	.dbline 253
;       uchar i,temh,teml; 
;       init_1820();        //复位18b20 
	xcall _init_1820
	.dbline 254
;       write_1820(0xcc);   //skip rom 
	ldi R16,204
	xcall _write_1820
	.dbline 255
;       write_1820(0x44); // 发出转换命令 convert T
	ldi R16,68
	xcall _write_1820
	.dbline 256
;       delay(400); 
	ldi R16,400
	ldi R17,1
	xcall _delay
	.dbline 257
;       init_1820(); 
	xcall _init_1820
	.dbline 258
;       WDR(); 
	wdr
	.dbline 259
;       write_1820(0xcc);  //发出读命令 
	ldi R16,204
	xcall _write_1820
	.dbline 260
;       write_1820(0xbe); 
	ldi R16,190
	xcall _write_1820
	.dbline 261
;       teml=read_1820();  //读数据 
	xcall _read_1820
	mov R20,R16
	.dbline 262
;       temh=read_1820(); 
	xcall _read_1820
	mov R22,R16
	.dbline 273
; 	 
;       //for(i=0;i<7;i++)    //测试用 
;       //{ 
;       //send_byte(0x40); 
;       //send_byte(disp_table[0&0x0f]); 
;                   //} 
;       //send_byte(disp_table[temh>>4]); 
;       //send_byte(disp_table[temh&0x0f]); 
;                   //send_byte(disp_table[teml>>4]); 
;       //send_byte(disp_table[teml&0x0f]); 
;       count=(temh*256+teml)*6.25;  //计算具体温度 
	ldi R16,<L63
	ldi R17,>L63
	xcall lpm32
	st -y,R19
	st -y,R18
	st -y,R17
	st -y,R16
	mov R18,R22
	clr R19
	ldi R16,256
	ldi R17,1
	xcall empy16s
	movw R2,R16
	mov R4,R20
	clr R5
	add R2,R4
	adc R3,R5
	movw R16,R2
	xcall int2fp
	st -y,R19
	st -y,R18
	st -y,R17
	st -y,R16
	xcall empy32f
	xcall fp2long
	sts _count+1,R17
	sts _count,R16
	sts _count+2+1,R19
	sts _count+2,R18
	.dbline 274
;       WDR(); 
	wdr
	.dbline 276
;                   //disp_led(0,1);     //显示温度 
;       for(i=0;i<100;i++)   //每次转换需要延时200ms以上 
	clr R10
	xjmp L67
L64:
	.dbline 277
	ldi R16,1000
	ldi R17,3
	xcall _delay
L65:
	.dbline 276
	inc R10
L67:
	.dbline 276
	mov R24,R10
	cpi R24,100
	brlo L64
	.dbline 278
	ldi R24,<L68
	ldi R25,>L68
	std y+1,R25
	std y+0,R24
	clr R18
	clr R16
	xcall _LCD_write_string
	.dbline 279
L61:
	.dbline 250
	xjmp L60
X1:
	.dbline -2
L59:
	adiw R28,2
	.dbline 0 ; func end
	ret
	.dbsym r teml 20 c
	.dbsym r temh 22 c
	.dbsym r i 10 c
	.dbend
	.area bss(ram, con, rel)
	.dbfile C:\DOCUME~1\Administrator\桌面\18b20\1.c
_count::
	.blkb 4
	.dbsym e count _count L
_dp::
	.blkb 1
	.dbsym e dp _dp c
	.area data(ram, con, rel)
	.dbfile C:\DOCUME~1\Administrator\桌面\18b20\1.c
L68:
	.blkb 6
	.area idata
	.byte 'c,'o,'u,'n,'t,0
	.area data(ram, con, rel)
	.dbfile C:\DOCUME~1\Administrator\桌面\18b20\1.c
	.area lit(rom, con, rel)
L63:
	.word 0x0,0x40c8