24cxx_test.s

24IIC的源代码

	mov R12,R2
L69:
L71:
	.dbline 129
;  Ragain2:
;   if(ICerror<10)
	cpi R20,10
	brsh L74
X27:
	.dbline 130
;    ICerror++;
	inc R20
	.dbline 132
;   else 
;    goto Rstop;
L73:
	.dbline 133
;  twi_start(); //
	xcall _twi_start
	.dbline 134
;  if(twi_writebyte(temp|1)==0)
	mov R16,R12
	ori R16,1
	xcall _twi_writebyte
	tst R16
	brne L78
X28:
	.dbline 135
;   goto Ragain2;
	xjmp L71
L77:
	.dbline 137
;  while(num--)
;  {
	.dbline 138
;   twi_readbyte(p,num); 
	mov R18,R10
	movw R16,R22
	xcall _twi_readbyte
	.dbline 139
;   p++;
	subi R22,255  ; offset = 1
	sbci R23,255
	.dbline 140
;  }
L78:
	.dbline 136
	mov R12,R10
	clr R13
	mov R24,R12
	subi R24,1
	mov R10,R24
	tst R12
	brne L77
X29:
L74:
	.dbline 142
;  Rstop:
;   Stop(); 
	ldi R24,148
	out 0x36,R24
	.dbline 143
;  return(ICerror);
	mov R16,R20
	.dbline -2
L68:
	.dbline 0 ; func end
	adiw R28,5
	xjmp pop_xgsetF0FC
	.dbsym r temp 12 c
	.dbsym r ICerror 20 c
	.dbsym r p 22 pc
	.dbsym r num 10 c
	.dbsym l P_data 17 pc
	.dbsym l addr 15 i
	.dbsym r DevAddr 12 c
	.dbsym r model 14 i
	.dbend
	.dbfile D:\mega16_32实验板资料\ICCAVR源程序\twi\24c64\连续读写\lcd1602.h
	.dbfunc e LCD_init _LCD_init fV
	.even
_LCD_init::
	.dbline -1
	.dbline 34
; /*-------------------------------------------
;    RS----------PC2
;    RW----------GND
;    EN----------PC3
;    D4-D7-------PC4-PC7
; ---------------------------------------------*/
; //定义MCU与LCD的接口 
; #define LCD_EN_PORT   PORTC
; #define LCD_EN_DDR    DDRC
; #define LCD_RS_PORT   PORTC
; #define LCD_RS_DDR    DDRC
; #define LCD_DATA_PORT PORTC
; #define LCD_DATA_DDR  DDRC
; #define LCD_DATA_PIN  PINC
; #define LCD_EN        0x08   //portc3 out
; #define LCD_RS        0x04   //portc2 out
; #define LCD_DATA      0xf0 //portc4/5/6/7 out
; 
; /*----------------------------------------------------------
; Public function prototypes
; ----------------------------------------------------------*/
; void LCD_init(void);
; void LCD_en_write(void);
; void clear(void);
; void LCD_write_char(unsigned command,unsigned data);
; void LCD_set_xy(unsigned char x, unsigned char y);
; void LCD_write_string(unsigned char X,unsigned char Y,unsigned char *s);
; void LCD_write_data(unsigned char X,unsigned char Y,int dat);
; 
; /*------------------------------------------------------------
; 函数: lcd1602口线初始化和液晶初始化
; -------------------------------------------------------------*/
; void LCD_init(void) //液晶初始化
; {
	.dbline 35
;  LCD_DATA_DDR|=LCD_DATA;
	in R24,0x14
	ori R24,240
	out 0x14,R24
	.dbline 36
;  LCD_EN_DDR|=LCD_EN;
	sbi 0x14,3
	.dbline 37
;  LCD_RS_DDR|=LCD_RS;
	sbi 0x14,2
	.dbline 38
;  delay_ms(15);
	ldi R16,15
	ldi R17,0
	xcall _delay_ms
	.dbline 39
;  LCD_write_char(0x28,0); //4位显示
	clr R18
	clr R19
	ldi R16,40
	ldi R17,0
	xcall _LCD_write_char
	.dbline 40
;  delay_ms(15);
	ldi R16,15
	ldi R17,0
	xcall _delay_ms
	.dbline 41
;  LCD_write_char(0x0c,0); //显示开
	clr R18
	clr R19
	ldi R16,12
	ldi R17,0
	xcall _LCD_write_char
	.dbline 42
;  delay_ms(15);
	ldi R16,15
	ldi R17,0
	xcall _delay_ms
	.dbline 43
;  LCD_write_char(0x01,0); //清屏
	clr R18
	clr R19
	ldi R16,1
	ldi R17,0
	xcall _LCD_write_char
	.dbline 44
;  clear();
	xcall _clear
	.dbline -2
L80:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e LCD_set_xy _LCD_set_xy fV
;        address -> R20
;              y -> R10
;              x -> R22
	.even
_LCD_set_xy::
	xcall push_xgsetF00C
	mov R10,R18
	mov R22,R16
	.dbline -1
	.dbline 53
; }
; 
; /*------------------------------------------------------------
; 函数: 设置显示地址
; para: x---the display address of a line limit: 0---15
;       y---the display line limit 0 or 1 
; --------------------------------------------------------------*/
; void LCD_set_xy(unsigned char x, unsigned char y) //写地址函数
; {
	.dbline 55
;   unsigned char address;
;   if(y ==0) 
	tst R10
	brne L82
X30:
	.dbline 56
;    address=0x80+x; //the first line
	mov R20,R22
	subi R20,128    ; addi 128
	xjmp L83
L82:
	.dbline 58
;   else 
;    address=0xc0+x; //the second line
	mov R20,R22
	subi R20,64    ; addi 192
L83:
	.dbline 59
;   LCD_write_char(address,0);
	clr R18
	clr R19
	mov R16,R20
	clr R17
	xcall _LCD_write_char
	.dbline -2
L81:
	.dbline 0 ; func end
	xjmp pop_xgsetF00C
	.dbsym r address 20 c
	.dbsym r y 10 c
	.dbsym r x 22 c
	.dbend
	.dbfunc e LCD_en_write _LCD_en_write fV
	.even
_LCD_en_write::
	.dbline -1
	.dbline 65
; }
; /*-------------------------------------------------------------
; 函数: lcd1602使能
; *--------------------------------------------------------------*/
; void LCD_en_write(void) //液晶使能
; { 
	.dbline 66
;  LCD_EN_PORT|=LCD_EN;
	sbi 0x15,3
	.dbline 67
;  delay_us(5);
	ldi R16,5
	ldi R17,0
	xcall _delay_us
	.dbline 68
;  LCD_EN_PORT&=~LCD_EN;
	cbi 0x15,3
	.dbline -2
L84:
	.dbline 0 ; func end
	ret
	.dbend
	.dbfunc e LCD_write_char _LCD_write_char fV
;      data_temp -> R22,R23
;   command_temp -> R20,R21
;           data -> R12,R13
;        command -> R10,R11
	.even
_LCD_write_char::
	xcall push_xgsetF03C
	movw R12,R18
	movw R10,R16
	.dbline -1
	.dbline 76
; }
; /*------------------------------------------------------------
; 函数: 写命令或数据到lcd1602
; 参数：command: 0---写数据, 1---写命令
;       data: 所要写的命令或数据
; *-------------------------------------------------------------*/
; void LCD_write_char(unsigned command,unsigned data) 
; {
	.dbline 78
;  unsigned command_temp,data_temp;
;  command_temp=command;
	movw R20,R10
	.dbline 79
;  data_temp=data;
	movw R22,R12
	.dbline 80
;  delay_us(25);
	ldi R16,25
	ldi R17,0
	xcall _delay_us
	.dbline 81
;  if(command==0)
	cpi R20,0
	cpc R20,R21
	brne L86
X31:
	.dbline 82
;  {
	.dbline 83
;   LCD_RS_PORT|=LCD_RS; //RS=1
	sbi 0x15,2
	.dbline 84
;   LCD_DATA_PORT&=0X0f;
	in R24,0x15
	andi R24,15
	out 0x15,R24
	.dbline 85
;   LCD_DATA_PORT|=data_temp&0xf0; //写高四位
	movw R24,R22
	andi R24,240
	andi R25,0
	in R2,0x15
	clr R3
	or R2,R24
	or R3,R25
	out 0x15,R2
	.dbline 86
;   LCD_en_write();
	xcall _LCD_en_write
	.dbline 87
;   data_temp=data_temp<<4; 
	lsl R22
	rol R23
	lsl R22
	rol R23
	lsl R22
	rol R23
	lsl R22
	rol R23
	.dbline 88
;   LCD_DATA_PORT&=0X0f;
	in R24,0x15
	andi R24,15
	out 0x15,R24
	.dbline 89
;   LCD_DATA_PORT|=data_temp&0xf0; //写低四位
	movw R24,R22
	andi R24,240
	andi R25,0
	in R2,0x15
	clr R3
	or R2,R24
	or R3,R25
	out 0x15,R2
	.dbline 90
;   LCD_en_write();
	xcall _LCD_en_write
	.dbline 91
;  }
	xjmp L87
L86:
	.dbline 93
;  else
;  {
	.dbline 94
;   LCD_RS_PORT&=~LCD_RS; //RS=0
	cbi 0x15,2
	.dbline 95
;   LCD_DATA_PORT&=0X0f;
	in R24,0x15
	andi R24,15
	out 0x15,R24
	.dbline 96
;   LCD_DATA_PORT|=command_temp&0xf0; //写高四位
	movw R24,R20
	andi R24,240
	andi R25,0
	in R2,0x15
	clr R3
	or R2,R24
	or R3,R25
	out 0x15,R2
	.dbline 97
;   LCD_en_write();
	xcall _LCD_en_write
	.dbline 98
;   command_temp=command_temp<<4;
	lsl R20
	rol R21
	lsl R20
	rol R21
	lsl R20
	rol R21
	lsl R20
	rol R21
	.dbline 99
;   LCD_DATA_PORT&=0x0f;
	in R24,0x15
	andi R24,15
	out 0x15,R24
	.dbline 100
;   LCD_DATA_PORT|=command_temp&0xf0; //写低四位
	movw R24,R20
	andi R24,240
	andi R25,0
	in R2,0x15
	clr R3
	or R2,R24
	or R3,R25
	out 0x15,R2
	.dbline 101
;   LCD_en_write();
	xcall _LCD_en_write
	.dbline 102
;  }
L87:
	.dbline -2
L85:
	.dbline 0 ; func end
	xjmp pop_xgsetF03C
	.dbsym r data_temp 22 i
	.dbsym r command_temp 20 i
	.dbsym r data 12 i
	.dbsym r command 10 i
	.dbend
	.dbfunc e clear _clear fV
;              i -> R20
	.even
_clear::
	st -y,R20
	.dbline -1
	.dbline 108
; }
; /*-------------------------------------------------------------
; 函数: 清屏lcd1602
; ---------------------------------------------------------------*/
; void clear(void)
; {
	.dbline 110
;  unsigned char i;
;  LCD_set_xy(0,0);
	clr R18
	clr R16
	xcall _LCD_set_xy
	.dbline 111
;  for(i=0;i<16;i++)
	clr R20
	xjmp L92
L89:
	.dbline 112
;  LCD_write_char(0,' ');
	ldi R18,32
	ldi R19,0
	clr R16
	clr R17
	xcall _LCD_write_char
L90:
	.dbline 111
	inc R20
L92:
	.dbline 111
	cpi R20,16
	brlo L89
X32:
	.dbline 113
;  LCD_set_xy(0,1);
	ldi R18,1
	clr R16
	xcall _LCD_set_xy
	.dbline 114
;  for(i=0;i<16;i++)
	clr R20
	xjmp L96
L93:
	.dbline 115
;  LCD_write_char(0,' ');
	ldi R18,32
	ldi R19,0
	clr R16
	clr R17
	xcall _LCD_write_char
L94:
	.dbline 114
	inc R20
L96:
	.dbline 114
	cpi R20,16
	brlo L93
X33:
	.dbline -2
L88:
	.dbline 0 ; func end
	ld R20,y+
	ret
	.dbsym r i 20 c
	.dbend
	.dbfunc e LCD_write_string _LCD_write_string fV
;              s -> R20,R21
;              Y -> R12
;              X -> R10
	.even
_LCD_write_string::
	xcall push_xgset303C
	mov R12,R18
	mov R10,R16
	ldd R20,y+6
	ldd R21,y+7
	.dbline -1
	.dbline 123
; }
; /*-------------------------------------------------------------
; 函数: 写字符串
; 参数：列---X=0~15,行---Y=0~1 写地址
;       s为所要写的字符串
; ---------------------------------------------------------------*/
; void LCD_write_string(unsigned char X,unsigned char Y,unsigned char *s) 
; {
	.dbline 124
;  LCD_set_xy(X,Y);   
	mov R18,R12
	mov R16,R10
	xcall _LCD_set_xy
	xjmp L99
L98:
	.dbline 126
;  while(*s)  
;  {
	.dbline 127
;   LCD_write_char(0,*s);
	movw R30,R20
	ldd R18,z+0
	clr R19
	clr R16
	clr R17
	xcall _LCD_write_char
	.dbline 128
;   s++;
	subi R20,255  ; offset = 1
	sbci R21,255
	.dbline 129
;  }
L99:
	.dbline 125
	movw R30,R20
	ldd R2,z+0
	tst R2
	brne L98
X34:
	.dbline -2
L97:
	.dbline 0 ; func end
	xjmp pop_xgset303C
	.dbsym r s 20 pc
	.dbsym r Y 12 c
	.dbsym r X 10 c
	.dbend
	.dbfunc e LCD_write_data _LCD_write_data fV
;           data -> y+0
;              i -> R20
;            dat -> R14,R15
;              Y -> R12
;              X -> R10
	.even
_LCD_write_data::
	xcall push_xgset30FC
	mov R12,R18
	mov R10,R16
	sbiw R28,4
	ldd R14,y+12
	ldd R15,y+13
	.dbline -1
	.dbline 138
; }
; 
; /*-------------------------------------------------------------
; 函数: 写数字
; 参数：列---X=0~15,行---Y=0~1 写地址
;       dat为所要写的数字
; ---------------------------------------------------------------*/
; void LCD_write_data(unsigned char X,unsigned char Y,int dat)
; {
	.dbline 151
;  //unsigned char fuhao;
;  unsigned char data[4];
;  unsigned char i;
;   
;  /*if(dat<0)
;  {
;   fuhao='-';
;   dat=0-dat;
;  }
;  else
;   fuhao=' ';
;  data[0]=fuhao;*/
;  data[0]=dat/1000+0x30; dat%=1000;
	ldi R18,1000
	ldi R19,3
	movw R16,R14
	xcall div16s
	movw R24,R16
	adiw R24,48
	std y+0,R24
	.dbline 151
	ldi R18,1000
	ldi R19,3
	movw R16,R14
	xcall mod16s
	movw R14,R16
	.dbline 152
;  data[1]=dat/100+0x30;  dat%=100;
	ldi R18,100
	ldi R19,0
	xcall div16s
	movw R24,R16
	adiw R24,48
	std y+1,R24
	.dbline 152
	ldi R18,100
	ldi R19,0
	movw R16,R14
	xcall mod16s
	movw R14,R16
	.dbline 153
;  data[2]=dat/10+0x30; 
	ldi R18,10
	ldi R19,0
	xcall div16s
	movw R24,R16
	adiw R24,48
	std y+2,R24
	.dbline 154
;  data[3]=dat%10+0x30; 
	ldi R18,10
	ldi R19,0
	movw R16,R14
	xcall mod16s
	movw R24,R16
	adiw R24,48
	std y+3,R24
	.dbline 156
;  
;  LCD_set_xy(X,Y);
	mov R18,R12
	mov R16,R10
	xcall _LCD_set_xy
	.dbline 157
;  for(i=0;i<4;i++)
	clr R20
	xjmp L108
L105:
	.dbline 158
;   LCD_write_char(0,data[i]);
	movw R24,R28
	mov R30,R20
	clr R31
	add R30,R24
	adc R31,R25
	ldd R18,z+0
	clr R19
	clr R16
	clr R17
	xcall _LCD_write_char
L106:
	.dbline 157
	inc R20
L108:
	.dbline 157
	cpi R20,4
	brlo L105
X35:
	.dbline -2
L101:
	.dbline 0 ; func end
	adiw R28,4
	xjmp pop_xgset30FC
	.dbsym l data 0 A[4:4]c
	.dbsym r i 20 c
	.dbsym r dat 14 I
	.dbsym r Y 12 c
	.dbsym r X 10 c
	.dbend
	.area lit(rom, con, rel)
L110:
	.byte 18,17
	.byte 16,15
	.byte 14,13
	.byte 12,11
	.byte 10,9
	.byte 8,7
	.byte 6,5
	.byte 4,3
	.byte 2,1
	.byte 0
L111:
	.byte 0
	.word 0,0,0,0,0
	.byte 0,0,0,0,0,0,0,0
	.area text(rom, con, rel)
	.dbfile D:\mega16_32实验板资料\ICCAVR源程序\twi\24c64\连续读写\lcd1602.h
	.dbfile D:\mega16_32实验板资料\ICCAVR源程序\twi\24c64\连续读写\24cxx_test.c
	.dbfunc e main _main fV
;          temp1 -> y+24
;          temp2 -> y+5
;              i -> R20
	.even
_main::
	sbiw R28,43
	.dbline -1
	.dbline 15
; //ICC-AVR application builder : 2008-11-10 11:10:06
; // Target : M16
; // Crystal: 8.0000Mhz
; 
; #include <iom16v.h>
; #include <macros.h>
; 
; 
; #include "delay.h"
; #include "24cxx.h"
; #include "lcd1602.h"
; 
; //
; void main(void)
; {
	.dbline 16
;  unsigned char temp1[19]={18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0};
	ldi R24,<L110
	ldi R25,>L110
	movw R30,R28
	adiw R30,24
	ldi R16,19
	ldi R17,0
	st -y,R31
	st -y,R30
	st -y,R25
	st -y,R24
	xcall asgncblk
	.dbline 17
;  unsigned char temp2[19]={0};
	ldi R24,<L111
	ldi R25,>L111
	movw R30,R28
	adiw R30,5
	ldi R16,19
	ldi R17,0
	st -y,R31
	st -y,R30
	st -y,R25
	st -y,R24
	xcall asgncblk
	.dbline 19
;  unsigned char i;
;  LCD_init();
	xcall _LCD_init
	.dbline 21
;  //insert your functional code here...
;  LCD_write_string(0,0,"  AT24C64 TEST  ");
	ldi R24,<L112
	ldi R25,>L112
	std y+1,R25
	std y+0,R24
	clr R18
	clr R16
	xcall _LCD_write_string
	.dbline 22
;  AT24CxxWrite(64,0,1000,temp1,19);
	ldi R24,19
	std y+4,R24
	movw R24,R28
	adiw R24,24
	std y+3,R25
	std y+2,R24
	ldi R24,1000
	ldi R25,3
	std y+1,R25
	std y+0,R24
	clr R18
	ldi R16,64
	ldi R17,0
	xcall _AT24CxxWrite
	.dbline 23
;  AT24CxxRead(64,0,1000,temp2,19);
	ldi R24,19
	std y+4,R24
	movw R24,R28
	adiw R24,5
	std y+3,R25
	std y+2,R24
	ldi R24,1000
	ldi R25,3
	std y+1,R25
	std y+0,R24
	clr R18
	ldi R16,64
	ldi R17,0
	xcall _AT24CxxRead
	xjmp L114
L113:
	.dbline 25
;  while(1)
;  {
	.dbline 26
;   for(i=0;i<19;i++)
	clr R20
	xjmp L119
L116:
	.dbline 27
;   {
	.dbline 28
;    LCD_write_data(5,1,temp2[i]);
	movw R24,R28
	adiw R24,5
	mov R30,R20
	clr R31
	add R30,R24
	adc R31,R25
	ldd R2,z+0
	clr R3
	std y+1,R3
	std y+0,R2
	ldi R18,1
	ldi R16,5
	xcall _LCD_write_data
	.dbline 29
;    delay_ms(1000);
	ldi R16,1000
	ldi R17,3
	xcall _delay_ms
	.dbline 30
;   }
L117:
	.dbline 26
	inc R20
L119:
	.dbline 26
	cpi R20,19
	brlo L116
X36:
	.dbline 31
;  }
L114:
	.dbline 24
	xjmp L113
X37:
	.dbline -2
L109:
	.dbline 0 ; func end
	adiw R28,43
	ret
	.dbsym l temp1 24 A[19:19]c
	.dbsym l temp2 5 A[19:19]c
	.dbsym r i 20 c
	.dbend
	.area data(ram, con, rel)
	.dbfile D:\mega16_32实验板资料\ICCAVR源程序\twi\24c64\连续读写\24cxx_test.c
L112:
	.blkb 17
	.area idata
	.byte 32,32,'A,'T,50,52,'C,54,52,32,'T,'E,'S,'T,32,32
	.byte 0
	.area data(ram, con, rel)
	.dbfile D:\mega16_32实验板资料\ICCAVR源程序\twi\24c64\连续读写\24cxx_test.c
; }
;