📄 24cxx_test.s
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.module _24cxx_test.c
.area text(rom, con, rel)
.dbfile D:\iccavr\mega16\11\24CXX\24cxx_test.c
.dbfile D:\iccavr\mega16\11\24CXX\delay.h
.dbfunc e delay_1us _delay_1us fV
.even
_delay_1us::
.dbline -1
.dbline 6
; /**********延时函数*****************/
; /*-----------------------------------------------
; delay_us :1us延时函数
; ------------------------------------------------*/
; void delay_1us(void)
; {
.dbline 7
; asm("nop");
nop
.dbline -2
L1:
.dbline 0 ; func end
ret
.dbend
.dbfunc e delay_us _delay_us fV
; t -> R20,R21
.even
_delay_us::
st -y,R20
st -y,R21
movw R20,R16
.dbline -1
.dbline 14
; }
; /*-----------------------------------------------
; delay_nus :长延时函数
; 输入参数: t :延时时间 us
; ------------------------------------------------*/
; void delay_us(unsigned int t)
; {
xjmp L4
L3:
.dbline 16
; while(t--)
; delay_1us();
xcall _delay_1us
L4:
.dbline 15
movw R2,R20
subi R20,1
sbci R21,0
tst R2
brne L3
tst R3
brne L3
X0:
.dbline -2
L2:
.dbline 0 ; func end
ld R21,y+
ld R20,y+
ret
.dbsym r t 20 i
.dbend
.dbfunc e delay_1ms _delay_1ms fV
; i0 -> R16,R17
.even
_delay_1ms::
.dbline -1
.dbline 22
; }
; /*----------------------------------------------
; delay_ms :1ms延时函数
; -----------------------------------------------*/
; void delay_1ms(void)
; {
.dbline 24
; unsigned int i;
; for(i=0;i<1140;i++);
clr R16
clr R17
xjmp L10
L7:
.dbline 24
L8:
.dbline 24
subi R16,255 ; offset = 1
sbci R17,255
L10:
.dbline 24
cpi R16,116
ldi R30,4
cpc R17,R30
brlo L7
X1:
.dbline -2
L6:
.dbline 0 ; func end
ret
.dbsym r i0 16 i
.dbend
.dbfunc e delay_ms _delay_ms fV
; t -> R20,R21
.even
_delay_ms::
st -y,R20
st -y,R21
movw R20,R16
.dbline -1
.dbline 31
; }
; /*----------------------------------------------
; delay_nms :长延时函数
; 输入参数: t :延时时间 ms
; -----------------------------------------------*/
; void delay_ms(unsigned int t)
; {
xjmp L13
L12:
.dbline 33
; while(t--)
; delay_1ms();
xcall _delay_1ms
L13:
.dbline 32
movw R2,R20
subi R20,1
sbci R21,0
tst R2
brne L12
tst R3
brne L12
X2:
.dbline -2
L11:
.dbline 0 ; func end
ld R21,y+
ld R20,y+
ret
.dbsym r t 20 i
.dbend
.dbfile D:\iccavr\mega16\11\24CXX\24cxx_twi.h
.dbfunc e WriteByte _WriteByte fc
.dbunion 0 2 reccnt
.dbfield 0 rcnt i
.dbfield 0 rcntl A[2:2]c
.dbend
; ltg -> y+0
; Wdata -> R10
; RomAddress -> R12,R13
.even
_WriteByte::
xcall push_xgset003C
mov R10,R18
movw R12,R16
sbiw R28,2
.dbline -1
.dbline 39
; typedef unsigned char uint8;
; typedef unsigned int uint16;
;
; typedef union reccnt
; {
; uint16 rcnt;
; uint8 rcntl[2];
; }LngToChar;
;
; #define wr_24c64_cmd 0xA0
; #define rd_24c64_cmd 0xA1
;
; #define START 0x08
; #define RE_START 0x10
; #define MT_SLA_ACK 0x18
; //#define MT_SLA_ACK 0x38
; #define MT_SLA_NOACK 0x20
; #define MT_DATA_ACK 0x28
; #define MT_DATA_NOACK 0x30
; #define MR_SLA_ACK 0x40
; #define MR_SLA_NOACK 0x48
; #define MR_DATA_ACK 0x50
; #define MR_DATA_NOACK 0x58
;
; #define Start() (TWCR=(1<<TWINT)|(1<<TWSTA)|(1<<TWEN))
; #define Stop() (TWCR=(1<<TWINT)|(1<<TWSTO)|(1<<TWEN))
; #define Wait() {while(!(TWCR&(1<<TWINT)));}
; #define TestAck() (TWSR&0xf8)
; #define SetAck() (TWCR|=(1<<TWEA))
; #define SetNoAck() (TWCR&=~(1<<TWEA))
; #define Twi() (TWCR=(1<<TWINT)|(1<<TWEN))
; #define Write8Bit(x) {TWDR=(x);TWCR=(1<<TWINT)|(1<<TWEN);}
;
; uint8 WriteByte(uint16 RomAddress,uint8 Wdata);
; uint8 ReadByte(uint16 RomAddress);
;
; //******************************************
; uint8 WriteByte(uint16 RomAddress,uint8 Wdata)
; {
.dbline 42
; LngToChar ltg;
;
; ltg.rcnt=RomAddress;
std y+1,R13
std y+0,R12
.dbline 44
;
; _CLI();
cli
.dbline 45
; Start();//twi
ldi R24,164
out 0x36,R24
.dbline 46
; Wait();
L16:
.dbline 46
L17:
.dbline 46
in R2,0x36
sbrs R2,7
rjmp L16
X3:
.dbline 46
.dbline 46
.dbline 47
; if(TestAck()!=START) goto wr_exit;//ACK 0x08
in R24,0x1
andi R24,248
cpi R24,8
breq L19
X4:
.dbline 47
xjmp L21
L19:
.dbline 49
;
; Write8Bit(wr_24c64_cmd);//
.dbline 49
ldi R24,160
out 0x3,R24
.dbline 49
ldi R24,132
out 0x36,R24
.dbline 49
.dbline 49
.dbline 50
; Wait();
L22:
.dbline 50
L23:
.dbline 50
in R2,0x36
sbrs R2,7
rjmp L22
X5:
.dbline 50
.dbline 50
.dbline 51
; if(TestAck()!=MT_SLA_ACK) goto wr_exit;//ACK MT_SLA_ACK 0x18
in R24,0x1
andi R24,248
cpi R24,24
breq L25
X6:
.dbline 51
xjmp L21
L25:
.dbline 53
;
; Write8Bit(ltg.rcntl[1]); //写操作单元的高8位地址
.dbline 53
ldd R2,y+1
out 0x3,R2
.dbline 53
ldi R24,132
out 0x36,R24
.dbline 53
.dbline 53
.dbline 54
; Wait();
L28:
.dbline 54
L29:
.dbline 54
in R2,0x36
sbrs R2,7
rjmp L28
X7:
.dbline 54
.dbline 54
.dbline 55
; if(TestAck()!=MT_DATA_ACK) goto wr_exit;//ACK
in R24,0x1
andi R24,248
cpi R24,40
breq L31
X8:
.dbline 55
xjmp L21
L31:
.dbline 57
;
; Write8Bit(ltg.rcntl[0]); //写操作单元的低8位地址
.dbline 57
ldd R2,y+0
out 0x3,R2
.dbline 57
ldi R24,132
out 0x36,R24
.dbline 57
.dbline 57
.dbline 58
; Wait();
L33:
.dbline 58
L34:
.dbline 58
in R2,0x36
sbrs R2,7
rjmp L33
X9:
.dbline 58
.dbline 58
.dbline 59
; if(TestAck()!=MT_DATA_ACK) goto wr_exit;//ACK
in R24,0x1
andi R24,248
cpi R24,40
breq L36
X10:
.dbline 59
xjmp L21
L36:
.dbline 61
;
; Write8Bit(Wdata);//
.dbline 61
out 0x3,R10
.dbline 61
ldi R24,132
out 0x36,R24
.dbline 61
.dbline 61
.dbline 62
; Wait();
L38:
.dbline 62
L39:
.dbline 62
in R2,0x36
sbrs R2,7
rjmp L38
X11:
.dbline 62
.dbline 62
.dbline 63
; if(TestAck()!=MT_DATA_ACK) goto wr_exit;//ACK
in R24,0x1
andi R24,248
cpi R24,40
breq L41
X12:
.dbline 63
xjmp L21
L41:
.dbline 65
;
; Stop();//
ldi R24,148
out 0x36,R24
.dbline 66
; delay_ms(30);//
ldi R16,30
ldi R17,0
xcall _delay_ms
.dbline 67
; _SEI();
sei
.dbline 68
; return 0;
clr R16
xjmp L15
L21:
.dbline 70
; wr_exit://出错退出
; Stop();//
ldi R24,148
out 0x36,R24
.dbline 71
; _SEI();
sei
.dbline 72
; return 1;
ldi R16,1
.dbline -2
L15:
.dbline 0 ; func end
adiw R28,2
xjmp pop_xgset003C
.dbsym l ltg 0 S[reccnt]
.dbsym r Wdata 10 c
.dbsym r RomAddress 12 i
.dbend
.dbfunc e ReadByte _ReadByte fc
; ltg -> y+0
; temp0 -> R10
; RomAddress -> R16,R17
.even
_ReadByte::
st -y,R10
sbiw R28,2
.dbline -1
.dbline 77
; }
;
; //******************************************
; uint8 ReadByte(uint16 RomAddress)
; {
.dbline 80
; uint8 temp;
; LngToChar ltg;
; _CLI();
cli
.dbline 81
; ltg.rcnt=RomAddress;
std y+1,R17
std y+0,R16
.dbline 83
;
; Start();
ldi R24,164
out 0x36,R24
.dbline 84
; Wait();
L44:
.dbline 84
L45:
.dbline 84
in R2,0x36
sbrs R2,7
rjmp L44
X13:
.dbline 84
.dbline 84
.dbline 85
; if (TestAck()!=START) goto re_exit;//ACK
in R24,0x1
andi R24,248
cpi R24,8
breq L47
X14:
.dbline 85
xjmp L49
L47:
.dbline 87
;
; Write8Bit(wr_24c64_cmd);//
.dbline 87
ldi R24,160
out 0x3,R24
.dbline 87
ldi R24,132
out 0x36,R24
.dbline 87
.dbline 87
.dbline 88
; Wait();
L50:
.dbline 88
L51:
.dbline 88
in R2,0x36
sbrs R2,7
rjmp L50
X15:
.dbline 88
.dbline 88
.dbline 89
; if (TestAck()!=MT_SLA_ACK) goto re_exit;//ACK
in R24,0x1
andi R24,248
cpi R24,24
breq L53
X16:
.dbline 89
xjmp L49
L53:
.dbline 91
;
; Write8Bit(ltg.rcntl[1]); //写操作单元的高8位地址
.dbline 91
ldd R2,y+1
out 0x3,R2
.dbline 91
ldi R24,132
out 0x36,R24
.dbline 91
.dbline 91
.dbline 92
; Wait();
L56:
.dbline 92
L57:
.dbline 92
in R2,0x36
sbrs R2,7
rjmp L56
X17:
.dbline 92
.dbline 92
.dbline 93
; if (TestAck()!=MT_DATA_ACK) goto re_exit;
in R24,0x1
andi R24,248
cpi R24,40
breq L59
X18:
.dbline 93
xjmp L49
L59:
.dbline 95
;
; Write8Bit(ltg.rcntl[0]); //写操作单元的低8位地址
.dbline 95
ldd R2,y+0
out 0x3,R2
.dbline 95
ldi R24,132
out 0x36,R24
.dbline 95
.dbline 95
.dbline 96
; Wait();
L61:
.dbline 96
L62:
.dbline 96
in R2,0x36
sbrs R2,7
rjmp L61
X19:
.dbline 96
.dbline 96
.dbline 97
; if (TestAck()!=MT_DATA_ACK) goto re_exit;
in R24,0x1
andi R24,248
cpi R24,40
breq L64
X20:
.dbline 97
xjmp L49
L64:
.dbline 99
;
; Start();//twi
ldi R24,164
out 0x36,R24
.dbline 100
; Wait();
L66:
.dbline 100
L67:
.dbline 100
in R2,0x36
sbrs R2,7
rjmp L66
X21:
.dbline 100
.dbline 100
.dbline 101
; if (TestAck()!=RE_START) goto re_exit;
in R24,0x1
andi R24,248
cpi R24,16
breq L69
X22:
.dbline 101
xjmp L49
L69:
.dbline 103
;
; Write8Bit(rd_24c64_cmd);//
.dbline 103
ldi R24,161
out 0x3,R24
.dbline 103
ldi R24,132
out 0x36,R24
.dbline 103
.dbline 103
.dbline 104
; Wait();
L71:
.dbline 104
L72:
.dbline 104
in R2,0x36
sbrs R2,7
rjmp L71
X23:
.dbline 104
.dbline 104
.dbline 105
; if(TestAck()!=MR_SLA_ACK) goto re_exit;//ACK
in R24,0x1
andi R24,248
cpi R24,64
breq L74
X24:
.dbline 105
xjmp L49
L74:
.dbline 107
;
; Twi();//启动主I2C读方式
ldi R24,132
out 0x36,R24
.dbline 108
; Wait();
L76:
.dbline 108
L77:
.dbline 108
in R2,0x36
sbrs R2,7
rjmp L76
X25:
.dbline 108
.dbline 108
.dbline 109
; if(TestAck()!=MR_DATA_NOACK) goto re_exit;//ACK MR_DATA_NOACK 0x58
in R24,0x1
andi R24,248
cpi R24,88
breq L79
X26:
.dbline 109
xjmp L49
L79:
.dbline 111
;
; temp=TWDR;// 读取I2C接收的数据
in R10,0x3
.dbline 112
; Stop();//I2C停止
ldi R24,148
out 0x36,R24
.dbline 114
;
; _SEI();
sei
.dbline 115
; return temp;
mov R16,R10
xjmp L43
L49:
.dbline 118
;
; re_exit://出错退出
; Stop();
ldi R24,148
out 0x36,R24
.dbline 119
; _SEI();
sei
.dbline 120
; return 0;
clr R16
.dbline -2
L43:
.dbline 0 ; func end
adiw R28,2
ld R10,y+
ret
.dbsym l ltg 0 S[reccnt]
.dbsym r temp0 10 c
.dbsym r RomAddress 16 i
.dbend
.dbfile D:\iccavr\mega16\11\24CXX\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
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