main.s

学习AVR单片机的基础实验程序 适合初学者学习提高

	.module main.c
	.area text(rom, con, rel)
	.dbfile D:\AVR\我的程序\AT24C02的I2C实验/cfg.h
	.dbfunc e delay_ms _delay_ms fV
;              i -> R20,R21
;           time -> R16,R17
	.even
_delay_ms::
	xcall push_gset1
	.dbline -1
	.dbline 39
; /***********************************
; *实验目的：熟悉AT24C02编程
; *设    计：萧联珠
; *日    期：2007-11-22
; ************************************/
; #include <iom16v.h>
; #include "cfg.h"
; 
; void main()
; {
;  unsigned char i;
;  uart_init();          /*串口初始化*/
;  for(i=0;i<10;i++)
;    I2C_Write(i,0x80+i);
;  delay_ms(1000);
;  while(1)
;  {
;    for(i=0;i<10;i++)
;    {
;      while(!(UCSRA&(1<<UDRE))); /*等待接受准备好*/
; 	 delay_ms(10);
;      UDR=I2C_Read(0x80+i);
;    }
;  }
; }
; }
; }
; }
; }
; }
; }
; }
; }
; }
; }
; }
; }
; }
; }
	.dbline 41
; }
; }
	xjmp L5
L2:
	.dbline 42
	clr R20
	clr R21
L6:
	.dbline 42
L7:
	.dbline 42
	subi R20,255  ; offset = 1
	sbci R21,255
	.dbline 42
	cpi R20,232
	ldi R30,3
	cpc R21,R30
	brlt L6
L3:
	.dbline 41
	subi R16,1
	sbci R17,0
L5:
	.dbline 41
	clr R2
	clr R3
	cp R2,R16
	cpc R3,R17
	brlt L2
	.dbline -2
L1:
	xcall pop_gset1
	.dbline 0 ; func end
	ret
	.dbsym r i 20 I
	.dbsym r time 16 I
	.dbend
	.dbfunc e uart_init _uart_init fV
	.even
_uart_init::
	.dbline -1
	.dbline 47
; }
; }
; }
; }
; }
; }
	.dbline 48
; }
	ldi R24,2
	out 0xb,R24
	.dbline 49
; }
	ldi R24,24
	out 0xa,R24
	.dbline 50
; }
	ldi R24,6
	out 0x20,R24
	.dbline 51
; }
	clr R2
	out 0x20,R2
	.dbline 52
; }
	ldi R24,12
	out 0x9,R24
	.dbline -2
L10:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e I2C_Write _I2C_Write fc
;     RegAddress -> R22
;          Wdata -> R20
	.even
_I2C_Write::
	xcall push_gset2
	mov R22,R18
	mov R20,R16
	.dbline -1
	.dbline 61
; }
; }
; }
; }
; }
; }
; }
; }
; }
	.dbline 62
; }
	ldi R24,164
	out 0x36,R24
	.dbline 63
L12:
	.dbline 63
L13:
	.dbline 63
; }
	in R2,0x36
	sbrs R2,7
	rjmp L12
	.dbline 63
	.dbline 63
	.dbline 64
; }
	in R24,0x1
	andi R24,248
	cpi R24,8
	breq L15
	.dbline 65
; }
	ldi R16,1
	xjmp L11
L15:
	.dbline 67
; }
; }
	.dbline 67
	ldi R24,160
	out 0x3,R24
	.dbline 67
	ldi R24,132
	out 0x36,R24
	.dbline 67
	.dbline 67
	.dbline 68
L17:
	.dbline 68
L18:
	.dbline 68
; }
	in R2,0x36
	sbrs R2,7
	rjmp L17
	.dbline 68
	.dbline 68
	.dbline 69
; }
	in R24,0x1
	andi R24,248
	cpi R24,24
	breq L20
	.dbline 70
; }
	ldi R16,1
	xjmp L11
L20:
	.dbline 72
; }
; }
	.dbline 72
	out 0x3,R22
	.dbline 72
	ldi R24,132
	out 0x36,R24
	.dbline 72
	.dbline 72
	.dbline 73
L22:
	.dbline 73
L23:
	.dbline 73
; }
	in R2,0x36
	sbrs R2,7
	rjmp L22
	.dbline 73
	.dbline 73
	.dbline 74
; }
	in R24,0x1
	andi R24,248
	cpi R24,40
	breq L25
	.dbline 75
; }
	ldi R16,1
	xjmp L11
L25:
	.dbline 77
; }
; }
	.dbline 77
	out 0x3,R20
	.dbline 77
	ldi R24,132
	out 0x36,R24
	.dbline 77
	.dbline 77
	.dbline 78
L27:
	.dbline 78
L28:
	.dbline 78
; }
	in R2,0x36
	sbrs R2,7
	rjmp L27
	.dbline 78
	.dbline 78
	.dbline 79
; }
	in R24,0x1
	andi R24,248
	cpi R24,40
	breq L30
	.dbline 80
; }
	ldi R16,1
	xjmp L11
L30:
	.dbline 82
; }
; }
	ldi R24,148
	out 0x36,R24
	.dbline 83
; }
	ldi R16,100
	ldi R17,0
	xcall _delay_ms
	.dbline 84
; }
	clr R16
	.dbline -2
L11:
	xcall pop_gset2
	.dbline 0 ; func end
	ret
	.dbsym r RegAddress 22 c
	.dbsym r Wdata 20 c
	.dbend
	.dbfunc e I2C_Read _I2C_Read fc
;           temp -> R20
;     RegAddress -> R16,R17
	.even
_I2C_Read::
	xcall push_gset1
	.dbline -1
	.dbline 93
; }
; }
; }
; }
; }
; }
; }
; }
; }
	.dbline 95
; }
; }
	ldi R24,164
	out 0x36,R24
	.dbline 96
L33:
	.dbline 96
L34:
	.dbline 96
; }
	in R2,0x36
	sbrs R2,7
	rjmp L33
	.dbline 96
	.dbline 96
	.dbline 97
; }
	in R24,0x1
	andi R24,248
	cpi R24,8
	breq L36
	.dbline 98
; }
	ldi R16,1
	xjmp L32
L36:
	.dbline 100
; }
; }
	.dbline 100
	ldi R24,160
	out 0x3,R24
	.dbline 100
	ldi R24,132
	out 0x36,R24
	.dbline 100
	.dbline 100
	.dbline 101
L38:
	.dbline 101
L39:
	.dbline 101
; }
	in R2,0x36
	sbrs R2,7
	rjmp L38
	.dbline 101
	.dbline 101
	.dbline 102
; }
	in R24,0x1
	andi R24,248
	cpi R24,24
	breq L41
	.dbline 103
; }
	ldi R16,1
	xjmp L32
L41:
	.dbline 105
; }
; }
	.dbline 105
	out 0x3,R16
	.dbline 105
	ldi R24,132
	out 0x36,R24
	.dbline 105
	.dbline 105
	.dbline 106
L43:
	.dbline 106
L44:
	.dbline 106
; }
	in R2,0x36
	sbrs R2,7
	rjmp L43
	.dbline 106
	.dbline 106
	.dbline 107
; }
	in R24,0x1
	andi R24,248
	cpi R24,40
	breq L46
	.dbline 108
; }
	ldi R16,1
	xjmp L32
L46:
	.dbline 110
; }
; }
	ldi R24,164
	out 0x36,R24
	.dbline 111
L48:
	.dbline 111
L49:
	.dbline 111
; }
	in R2,0x36
	sbrs R2,7
	rjmp L48
	.dbline 111
	.dbline 111
	.dbline 112
; }
	in R24,0x1
	andi R24,248
	cpi R24,16
	breq L51
	.dbline 113
; }
	ldi R16,1
	xjmp L32
L51:
	.dbline 115
; }
; }
	.dbline 115
	ldi R24,161
	out 0x3,R24
	.dbline 115
	ldi R24,132
	out 0x36,R24
	.dbline 115
	.dbline 115
	.dbline 116
L53:
	.dbline 116
L54:
	.dbline 116
; }
	in R2,0x36
	sbrs R2,7
	rjmp L53
	.dbline 116
	.dbline 116
	.dbline 117
; }
	in R24,0x1
	andi R24,248
	cpi R24,64
	breq L56
	.dbline 118
; }
	ldi R16,1
	xjmp L32
L56:
	.dbline 120
; }
; }
	ldi R24,132
	out 0x36,R24
	.dbline 121
L58:
	.dbline 121
L59:
	.dbline 121
; }
	in R2,0x36
	sbrs R2,7
	rjmp L58
	.dbline 121
	.dbline 121
	.dbline 122
; }
	in R24,0x1
	andi R24,248
	cpi R24,88
	breq L61
	.dbline 123
; }
	ldi R16,1
	xjmp L32
L61:
	.dbline 125
; }
; }
	in R20,0x3
	.dbline 126
; }
	ldi R24,148
	out 0x36,R24
	.dbline 127
; }
	mov R16,R20
	.dbline -2
L32:
	xcall pop_gset1
	.dbline 0 ; func end
	ret
	.dbsym r temp 20 c
	.dbsym r RegAddress 16 i
	.dbend
	.dbfile D:\AVR\我的程序\AT24C02的I2C实验\main.c
	.dbfunc e main _main fV
;              i -> R20
	.even
_main::
	.dbline -1
	.dbline 10
	.dbline 12
	xcall _uart_init
	.dbline 13
	clr R20
	xjmp L67
L64:
	.dbline 14
	mov R18,R20
	subi R18,128    ; addi 128
	mov R16,R20
	xcall _I2C_Write
L65:
	.dbline 13
	inc R20
L67:
	.dbline 13
	cpi R20,10
	brlo L64
	.dbline 15
	ldi R16,1000
	ldi R17,3
	xcall _delay_ms
	xjmp L69
L68:
	.dbline 17
	.dbline 18
	clr R20
	xjmp L74
X0:
	.dbline 19
L75:
	.dbline 20
L76:
	.dbline 20
	sbis 0xb,5
	rjmp L75
	.dbline 21
	ldi R16,10
	ldi R17,0
	xcall _delay_ms
	.dbline 22
	mov R16,R20
	clr R17
	subi R16,128  ; offset = 128
	sbci R17,255
	xcall _I2C_Read
	out 0xc,R16
	.dbline 23
L72:
	.dbline 18
	inc R20
L74:
	.dbline 18
	cpi R20,10
	brlo L76
	.dbline 24
L69:
	.dbline 16
	xjmp L68
X1:
	.dbline -2
L63:
	.dbline 0 ; func end
	ret
	.dbsym r i 20 c
	.dbend