?? zuopin.s
字號:
.module zuopin.c
.area text(rom, con, rel)
.dbfile K:\作品\新建文件夾\zuopin.c
.dbfunc e delay_us _delay_us fV
.even
_delay_us::
.dbline -1
.dbline 7
; // Target : M8
; // Crystal: 8.0000Mhz //8M晶振
; #include <iom8v.h>
; #include <macros.h>
;
; void delay_us() //微秒延時程序(1us)
; {
.dbline 8
; asm("nop");
nop
.dbline -2
L1:
.dbline 0 ; func end
ret
.dbend
.dbfunc e delay _delay fV
; time -> R20,R21
.even
_delay::
rcall push_gset1
movw R20,R16
.dbline -1
.dbline 11
; }
; void delay(unsigned int time)
; {
rjmp L4
L3:
.dbline 13
.dbline 13
rcall _delay_us
.dbline 14
subi R20,1
sbci R21,0
.dbline 15
L4:
.dbline 12
; while(time)
cpi R20,0
cpc R20,R21
brne L3
X0:
.dbline -2
L2:
rcall pop_gset1
.dbline 0 ; func end
ret
.dbsym r time 20 i
.dbend
.dbfunc e init_1820 _init_1820 fV
.even
_init_1820::
.dbline -1
.dbline 19
; { delay_us();
; time--;
; }
; }
;
; void init_1820() //初始化18b20
; {
.dbline 20
; PORTD|=0X80; //總線置1
sbi 0x12,7
.dbline 21
; delay(10);
ldi R16,10
ldi R17,0
rcall _delay
.dbline 22
; PORTD&=~0x80; //總線置0
cbi 0x12,7
.dbline 23
; delay(1200); // 延時等待
ldi R16,1200
ldi R17,4
rcall _delay
.dbline 24
; DDRD&=~0x80;
cbi 0x11,7
.dbline 25
; PORTD|=0x80; //總線置1
sbi 0x12,7
.dbline 26
; delay(50);
ldi R16,50
ldi R17,0
rcall _delay
.dbline 27
; DDRD|=0x80;
sbi 0x11,7
.dbline 28
; PORTD|=0x80;
sbi 0x12,7
.dbline 29
; delay(200);
ldi R16,200
ldi R17,0
rcall _delay
.dbline -2
L6:
.dbline 0 ; func end
ret
.dbend
.dbfunc e write_1820 _write_1820 fV
; i -> R20
; temp -> R22
.even
_write_1820::
rcall push_gset2
mov R22,R16
.dbline -1
.dbline 32
; }
; void write_1820(unsigned char temp) //寫數據
; {
.dbline 33
; unsigned char i=0;
clr R20
.dbline 34
; for(;i<8;i++)
rjmp L11
L8:
.dbline 35
; {
.dbline 36
; PORTD&=~0X80;
cbi 0x12,7
.dbline 37
; if(temp&(1<<i)) //寫數據，從低位開始
ldi R16,1
mov R17,R20
rcall lsl8
mov R2,R22
and R2,R16
breq L12
.dbline 38
; PORTD|=0X80;
sbi 0x12,7
rjmp L13
L12:
.dbline 40
; else
; PORTD&=~0X80;
cbi 0x12,7
L13:
.dbline 41
ldi R16,50
ldi R17,0
rcall _delay
.dbline 42
sbi 0x12,7
.dbline 43
L9:
.dbline 34
inc R20
L11:
.dbline 34
cpi R20,8
brlo L8
.dbline 44
; delay(50);
; PORTD|=0X80;
; }
; PORTD|=0X80;
sbi 0x12,7
.dbline -2
L7:
rcall pop_gset2
.dbline 0 ; func end
ret
.dbsym r i 20 c
.dbsym r temp 22 c
.dbend
.dbfunc e read_1820 _read_1820 fc
; n -> R20
; m -> R22
; i -> R10
.even
_read_1820::
rcall push_gset3
.dbline -1
.dbline 48
; }
;
; unsigned char read_1820() //讀數據
; {
.dbline 49
; unsigned char m,i=0,n=0;
clr R10
.dbline 49
clr R20
.dbline 50
; for(;i<8;i++)
rjmp L18
L15:
.dbline 51
; {
.dbline 52
; PORTD&=~0X80;
cbi 0x12,7
.dbline 53
; delay(5);
ldi R16,5
ldi R17,0
rcall _delay
.dbline 54
; PORTD|=0X80;
sbi 0x12,7
.dbline 55
; DDRD&=~0X80;
cbi 0x11,7
.dbline 56
; m=(PIND&0X80); //讀數據,從低位開始
in R22,0x10
andi R22,128
.dbline 57
; if(m)
breq L19
.dbline 58
; n|=(1<<i);
ldi R16,1
mov R17,R10
rcall lsl8
or R20,R16
rjmp L20
L19:
.dbline 60
; else
; n&=~(1<<i);
ldi R16,1
mov R17,R10
rcall lsl8
mov R2,R16
com R2
and R20,R2
L20:
.dbline 61
ldi R16,80
ldi R17,0
rcall _delay
.dbline 62
sbi 0x11,7
.dbline 63
L16:
.dbline 50
inc R10
L18:
.dbline 50
mov R24,R10
cpi R24,8
brlo L15
.dbline 64
; delay(80);
; DDRD|=0X80;
; }
; return (n);
mov R16,R20
.dbline -2
L14:
rcall pop_gset3
.dbline 0 ; func end
ret
.dbsym r n 20 c
.dbsym r m 22 c
.dbsym r i 10 c
.dbend
.dbfunc e temperature_read _temperature_read fV
; tempture -> <dead>
; teml -> R22
; temh -> R20
; i -> R20
.even
_temperature_read::
rcall push_gset2
.dbline -1
.dbline 67
; }
; void temperature_read() //讀取溫度值
; {
.dbline 70
; unsigned char tempture;
; unsigned char i,temh,teml;
; init_1820(); //復位18b20
rcall _init_1820
.dbline 71
; write_1820(0xcc); // 發出轉換命令
ldi R16,204
rcall _write_1820
.dbline 72
; write_1820(0x44); //啟動溫度轉換
ldi R16,68
rcall _write_1820
.dbline 73
; delay(400);
ldi R16,400
ldi R17,1
rcall _delay
.dbline 74
; init_1820();
rcall _init_1820
.dbline 75
; write_1820(0xcc); //發出讀命令
ldi R16,204
rcall _write_1820
.dbline 76
; write_1820(0xbe); //讀數據
ldi R16,190
rcall _write_1820
.dbline 77
; teml=read_1820();
rcall _read_1820
mov R22,R16
.dbline 78
; temh=read_1820();
rcall _read_1820
mov R20,R16
.dbline 79
; UDR=teml;
out 0xc,R22
.dbline 80
; delay(150);
ldi R16,150
ldi R17,0
rcall _delay
.dbline 81
; UDR=temh;
out 0xc,R20
.dbline 82
; for(i=0;i<100;i++) //延時等待
clr R20
rjmp L25
L22:
.dbline 83
ldi R16,500
ldi R17,1
rcall _delay
L23:
.dbline 82
inc R20
L25:
.dbline 82
cpi R20,100
brlo L22
.dbline -2
L21:
rcall pop_gset2
.dbline 0 ; func end
ret
.dbsym l tempture 1 c
.dbsym r teml 22 c
.dbsym r temh 20 c
.dbsym r i 20 c
.dbend
.dbfunc e uart0_init _uart0_init fV
.even
_uart0_init::
.dbline -1
.dbline 91
; delay(500);
; }
; //UART0 initialize
; // desired baud rate: 9600
; // actual: baud rate:9615 (0.2%)
; // char size: 8 bit
; // parity: Disabled
; void uart0_init(void) //初始化uart
; {
.dbline 92
; UCSRB = 0x00; //disable while setting baud rate
clr R2
out 0xa,R2
.dbline 93
; UCSRA = 0x00;
out 0xb,R2
.dbline 94
; UCSRC = BIT(URSEL) | 0x06;
ldi R24,134
out 0x20,R24
.dbline 95
; UBRRL = 0x33; //set baud rate lo
ldi R24,51
out 0x9,R24
.dbline 96
; UBRRH = 0x00; //set baud rate hi
out 0x20,R2
.dbline 97
; UCSRB = 0x18;
ldi R24,24
out 0xa,R24
.dbline -2
L26:
.dbline 0 ; func end
ret
.dbend
.dbfunc e main _main fV
.even
_main::
.dbline -1
.dbline 101
; }
;
; void main(void) //主函數
; {
.dbline 102
; delay(1000);
ldi R16,1000
ldi R17,3
rcall _delay
.dbline 103
; DDRD=0Xff;
ldi R24,255
out 0x11,R24
.dbline 104
; PORTD=0Xff;
out 0x12,R24
.dbline 105
; uart0_init();
rcall _uart0_init
rjmp L29
L28:
.dbline 107
rcall _temperature_read
L29:
.dbline 106
rjmp L28
X1:
.dbline -2
L27:
.dbline 0 ; func end
ret
.dbend
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