📄 ds18b20.s
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.module ds18b20.c
.area text(rom, con, rel)
.dbfile ..\..\..\VB01D6~1\ComTest\DS18b20\ds18b20.c
.area vector(rom, abs)
.org 32
rjmp _display_int
.area text(rom, con, rel)
.dbfile ..\..\..\VB01D6~1\ComTest\DS18b20\ds18b20.c
.area data(ram, con, rel)
.dbfile ..\..\..\VB01D6~1\ComTest\DS18b20\ds18b20.c
_distable::
.blkb 2
.area idata
.byte 39,47
.area data(ram, con, rel)
.dbfile ..\..\..\VB01D6~1\ComTest\DS18b20\ds18b20.c
.blkb 2
.area idata
.byte 55,63
.area data(ram, con, rel)
.dbfile ..\..\..\VB01D6~1\ComTest\DS18b20\ds18b20.c
.blkb 2
.area idata
.byte 'g,'o
.area data(ram, con, rel)
.dbfile ..\..\..\VB01D6~1\ComTest\DS18b20\ds18b20.c
.blkb 2
.area idata
.byte 'w,127
.area data(ram, con, rel)
.dbfile ..\..\..\VB01D6~1\ComTest\DS18b20\ds18b20.c
.blkb 2
.area idata
.byte 167,175
.area data(ram, con, rel)
.dbfile ..\..\..\VB01D6~1\ComTest\DS18b20\ds18b20.c
.dbfile E:\VB01D6~1\ComTest\DS18b20\ds18b20.c
.dbsym e distable _distable A[10:10]c
_count2::
.blkb 1
.area idata
.byte 0
.area data(ram, con, rel)
.dbfile E:\VB01D6~1\ComTest\DS18b20\ds18b20.c
.dbsym e count2 _count2 c
_count1::
.blkb 1
.area idata
.byte 0
.area data(ram, con, rel)
.dbfile E:\VB01D6~1\ComTest\DS18b20\ds18b20.c
.dbsym e count1 _count1 c
.area vector(rom, abs)
.org 26
rjmp _timer1_int
.area data(ram, con, rel)
.dbfile E:\VB01D6~1\ComTest\DS18b20\ds18b20.c
_count3::
.blkb 1
.area idata
.byte 0
.area data(ram, con, rel)
.dbfile E:\VB01D6~1\ComTest\DS18b20\ds18b20.c
.dbsym e count3 _count3 c
_flag1::
.blkb 1
.area idata
.byte 0
.area data(ram, con, rel)
.dbfile E:\VB01D6~1\ComTest\DS18b20\ds18b20.c
.dbsym e flag1 _flag1 c
.area vector(rom, abs)
.org 36
rjmp _UartRece_int
.area data(ram, con, rel)
.dbfile E:\VB01D6~1\ComTest\DS18b20\ds18b20.c
.area text(rom, con, rel)
.dbfile E:\VB01D6~1\ComTest\DS18b20\ds18b20.c
.dbfunc e main _main fI
; tempL -> R10
; tempH -> R12
.even
_main::
.dbline -1
.dbline 51
; /*************************************
; ds18b20测温程序
; 文 件 名 ：ds18b20.c
; 设 计 ：毕京鹏
; 最后修改日期：2008.11.13
; 版 本 ：V1.0
; 主控芯片 ：ATMEGA48V
; 工作频率 ：外部16MHz晶振
; 备注 : 初步：实时测温并显示
; 1.读数据时的处理方式
; 2.数据口上需带上拉（5.1K）
; 3.配置成9位时后三位始终为0，以此类推
; 4.1s更新一次
; *************************************/
; #include<iom48v.h>
; #include<macros.h>
;
; #define uchar unsigned char
; #define uint unsigned int
; /*DQ 接在PC0上*/
; #define DQ(x) x ? (PORTC |= 0x01) : (PORTC &= 0xfe)
; #define DRC(y) y ? (DDRC |= 0x01 ) : (DDRC &= 0xfe)
; uchar flag;
; void Init_1wire(void);
; void WriteByte_1wire(uchar data);
; uchar ReadByte_1wire(void);
;
; void PortInit(void);
; void delay_1us(void);
; void delay_10us(uchar n);
; /*显示有关*/
; #pragma interrupt_handler display_int:17
; const uchar distable[]={0x27,0x2f,0x37,0x3f,0x67,0x6f,0x77,0x7f,0xa7,0xaf};
; // 0 1 2 3 4 5 6 7 8 9
; uchar time1,time2;
; uchar count2=0;
; uchar timeb1,timeb2,timeb3,timeb4,timeb5,timeb6;
; void convert(void);
; /*定时有关*/
; uchar count1=0;
; #pragma interrupt_handler timer1_int:14
; /*通信有关*/
; uchar Rece[2],Send[3];
; uchar count3=0;
; uchar flag1=0;
; void UartInit(void);
; void UartSend(uchar a[],uchar length);
; #pragma interrupt_handler UartRece_int:19
; /*******************主函数********************************/
; main()
; { uchar tempH,tempL;
.dbline 52
; PortInit();
rcall _PortInit
.dbline 54
; /***********此部分在初次配置完成后可略去*****************/
; Init_1wire();
rcall _Init_1wire
.dbline 55
; WriteByte_1wire(0xcc);
ldi R16,204
rcall _WriteByte_1wire
.dbline 56
; WriteByte_1wire(0x4e); //Write Scratchpad
ldi R16,78
rcall _WriteByte_1wire
.dbline 57
; WriteByte_1wire(0x7f); //TH
ldi R16,127
rcall _WriteByte_1wire
.dbline 58
; WriteByte_1wire(0xff); //TL
ldi R16,255
rcall _WriteByte_1wire
.dbline 59
; WriteByte_1wire(0x1f); //CONFIGURATION REGISTER 9位
ldi R16,31
rcall _WriteByte_1wire
.dbline 61
;
; Init_1wire();
rcall _Init_1wire
.dbline 62
; WriteByte_1wire(0xcc);
ldi R16,204
rcall _WriteByte_1wire
.dbline 63
; WriteByte_1wire(0x48); //Copy Scratchpad
ldi R16,72
rcall _WriteByte_1wire
.dbline 65
; /***********************************************/
; SEI();
sei
rjmp L3
L2:
.dbline 67
; while(1)
; {if(count1==100)
.dbline 67
lds R24,_count1
cpi R24,100
brne L5
X0:
.dbline 68
; {count1=0;
.dbline 68
clr R2
sts _count1,R2
.dbline 69
; Init_1wire();
rcall _Init_1wire
.dbline 70
; WriteByte_1wire(0xcc);
ldi R16,204
rcall _WriteByte_1wire
.dbline 71
; WriteByte_1wire(0x44);
ldi R16,68
rcall _WriteByte_1wire
.dbline 72
; DRC(0); //判断转换是否完成
in R24,0x7
andi R24,254
out 0x7,R24
.dbline 73
; if(!(PINC&0x01));
sbic 0x6,0
rjmp L7
X1:
.dbline 73
L7:
.dbline 74
; Init_1wire();
rcall _Init_1wire
.dbline 75
; WriteByte_1wire(0xcc);
ldi R16,204
rcall _WriteByte_1wire
.dbline 76
; WriteByte_1wire(0xbe);
ldi R16,190
rcall _WriteByte_1wire
.dbline 77
; tempL = ReadByte_1wire();
rcall _ReadByte_1wire
mov R10,R16
.dbline 78
; tempH = ReadByte_1wire();
rcall _ReadByte_1wire
mov R12,R16
.dbline 80
;
; time1=tempH;
sts _time1,R12
.dbline 81
; time2=tempL;
sts _time2,R10
.dbline 82
; convert();
rcall _convert
.dbline 83
; }
L5:
.dbline 84
; if(flag1==1)
lds R24,_flag1
cpi R24,1
brne L9
X2:
.dbline 85
; {flag1=0;
.dbline 85
clr R2
sts _flag1,R2
.dbline 86
; if((Rece[0]=='S')&&(Rece[1]=='T'))
lds R24,_Rece
cpi R24,83
brne L11
X3:
lds R24,_Rece+1
cpi R24,84
brne L11
X4:
.dbline 87
; {Send[0]='#';
.dbline 87
ldi R24,35
sts _Send,R24
.dbline 88
; Send[1]=tempH;
sts _Send+1,R12
.dbline 89
; Send[2]=tempL;
sts _Send+2,R10
.dbline 90
; UartSend(Send,3); //向上位机发送数据
ldi R18,3
ldi R16,<_Send
ldi R17,>_Send
rcall _UartSend
.dbline 91
; }
L11:
.dbline 92
; }
L9:
.dbline 93
; }
L3:
.dbline 66
rjmp L2
X5:
.dbline -2
L1:
.dbline 0 ; func end
ret
.dbsym r tempL 10 c
.dbsym r tempH 12 c
.dbend
.dbfunc e timer1_int _timer1_int fV
.even
_timer1_int::
st -y,R24
st -y,R25
IN R24,63
st -y,R24
.dbline -1
.dbline 98
; }
; /*******************中断函数****************************/
; /*定时中断*/
; void timer1_int(void)
; {TCNT1=0xfd8f; //重赋初值
.dbline 98
ldi R24,64911
ldi R25,253
sts 132+1,R25
sts 132,R24
.dbline 99
; if(count1!=100)count1++;
lds R24,_count1
cpi R24,100
breq L17
X6:
.dbline 99
subi R24,255 ; addi 1
sts _count1,R24
L17:
.dbline -2
L16:
.dbline 0 ; func end
ld R24,y+
OUT 63,R24
ld R25,y+
ld R24,y+
reti
.dbend
.dbfunc e display_int _display_int fV
.even
_display_int::
st -y,R2
st -y,R3
st -y,R16
st -y,R17
st -y,R24
st -y,R25
st -y,R26
st -y,R30
st -y,R31
IN R2,63
st -y,R2
.dbline -1
.dbline 103
; }
; /*显示中断*/
; void display_int(void)
; {count2++;
.dbline 103
lds R24,_count2
subi R24,255 ; addi 1
sts _count2,R24
.dbline 104
; TCNT0=0xce; //重赋初值
ldi R24,206
out 0x26,R24
.dbline 105
; PORTC|=0x0e; //0000 1110
in R24,0x8
ori R24,14
out 0x8,R24
.dbline 106
; PORTD|=0xd8; //1101 1000
in R24,0xb
ori R24,216
out 0xb,R24
.dbline 107
; switch(count2)
lds R16,_count2
clr R17
cpi R16,1
ldi R30,0
cpc R17,R30
breq L23
X7:
cpi R16,2
ldi R30,0
cpc R17,R30
breq L24
X8:
cpi R16,3
ldi R30,0
cpc R17,R30
breq L25
X9:
cpi R16,4
ldi R30,0
cpc R17,R30
brne X13
rjmp L26
X13:
X10:
cpi R16,5
ldi R30,0
cpc R17,R30
brne X14
rjmp L27
X14:
X11:
cpi R16,6
ldi R30,0
cpc R17,R30
brne X15
rjmp L28
X15:
X12:
rjmp L20
L23:
.dbline 109
; {case 1:
; PORTC&=0xf1; //L6 1111 0001
in R24,0x8
andi R24,241
out 0x8,R24
.dbline 110
; PORTD&=distable[timeb6];
ldi R24,<_distable
ldi R25,>_distable
lds R30,_timeb6
clr R31
add R30,R24
adc R31,R25
ldd R2,z+0
in R3,0xb
and R3,R2
out 0xb,R3
.dbline 111
; break;
rjmp L21
L24:
.dbline 113
; case 2:
; PORTC&=0xf3; //L5 1111 0011
in R24,0x8
andi R24,243
out 0x8,R24
.dbline 114
; PORTD&=distable[timeb5];
ldi R24,<_distable
ldi R25,>_distable
lds R30,_timeb5
clr R31
add R30,R24
adc R31,R25
ldd R2,z+0
in R3,0xb
and R3,R2
out 0xb,R3
.dbline 115
; break;
rjmp L21
L25:
.dbline 117
; case 3:
; PORTC&=0xf5; //L4 1111 0101
in R24,0x8
andi R24,245
out 0x8,R24
.dbline 118
; PORTD&=distable[timeb4];
ldi R24,<_distable
ldi R25,>_distable
lds R30,_timeb4
clr R31
add R30,R24
adc R31,R25
ldd R2,z+0
in R3,0xb
and R3,R2
out 0xb,R3
.dbline 119
; break;
rjmp L21
L26:
.dbline 121
; case 4:
; PORTC&=0xf7; //L3 1111 0111
in R24,0x8
andi R24,247
out 0x8,R24
.dbline 122
; PORTD&=distable[timeb3];
ldi R24,<_distable
ldi R25,>_distable
lds R30,_timeb3
clr R31
add R30,R24
adc R31,R25
ldd R2,z+0
in R3,0xb
and R3,R2
out 0xb,R3
.dbline 123
; break;
rjmp L21
L27:
.dbline 125
; case 5:
; PORTC&=0xf9; //L2 1111 1001
in R24,0x8
andi R24,249
out 0x8,R24
.dbline 126
; PORTD&=distable[timeb2];
ldi R24,<_distable
ldi R25,>_distable
lds R30,_timeb2
clr R31
add R30,R24
adc R31,R25
ldd R2,z+0
in R3,0xb
and R3,R2
out 0xb,R3
.dbline 127
; break;
rjmp L21
L28:
.dbline 129
; case 6:
; count2=0;
clr R2
sts _count2,R2
.dbline 130
; PORTC&=0xfb; //L1 1111 1011
in R24,0x8
andi R24,251
out 0x8,R24
.dbline 131
; PORTD&=distable[timeb1];
ldi R24,<_distable
ldi R25,>_distable
lds R30,_timeb1
clr R31
add R30,R24
adc R31,R25
ldd R2,z+0
in R3,0xb
and R3,R2
out 0xb,R3
.dbline 132
; break;
L20:
L21:
.dbline -2
L19:
.dbline 0 ; func end
ld R2,y+
OUT 63,R2
ld R31,y+
ld R30,y+
ld R26,y+
ld R25,y+
ld R24,y+
ld R17,y+
ld R16,y+
ld R3,y+
ld R2,y+
reti
.dbend
.dbfunc e PortInit _PortInit fV
.even
_PortInit::
.dbline -1
.dbline 138
; }
; }
; /*******************子函数***********************************/
; /*端口及中断初始化*/
; void PortInit(void)
; {DDRC = 0xff;
.dbline 138
ldi R24,255
out 0x7,R24
.dbline 139
; PORTC=0xff;
out 0x8,R24
.dbline 140
; DDRD=0xff;
out 0xa,R24
.dbline 141
; PORTD=0x00;
clr R2
out 0xb,R2
.dbline 143
; /*T/C0*/
; TCCR0A=0x00;
out 0x24,R2
.dbline 144
; TIMSK0=0x01;
ldi R24,1
sts 110,R24
.dbline 145
; TCNT0=0xce; // (1024/16,000,000)*50=3.2ms
ldi R24,206
out 0x26,R24
.dbline 146
; TCCR0B=0x05; // clk/1024
ldi R24,5
out 0x25,R24
.dbline 148
; /*T/C1*/
; TCCR1A=0x00;
sts 128,R2
.dbline 149
; TIMSK1=0x01;
ldi R24,1
sts 111,R24
.dbline 150
; TCNT1=0xfd8f; //10ms
ldi R24,64911
ldi R25,253
sts 132+1,R25
sts 132,R24
.dbline 151
; TCCR1B=0x04; // clk/256
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