📄 ds18b20.lst
字号:
__text_start:
__start:
003D E5CF LDI R28,0x5F
003E E0D4 LDI R29,4
003F BFCD OUT 0x3D,R28
0040 BFDE OUT 0x3E,R29
0041 51C0 SUBI R28,0x10
0042 40D0 SBCI R29,0
0043 EA0A LDI R16,0xAA
0044 8308 STD Y+0,R16
0045 2400 CLR R0
0046 E6E8 LDI R30,0x68
0047 E0F0 LDI R31,0
0048 E010 LDI R17,0
0049 36E8 CPI R30,0x68
004A 07F1 CPC R31,R17
004B F011 BEQ 0x004E
004C 9201 ST R0,Z+
004D CFFB RJMP 0x0049
004E 8300 STD Z+0,R16
004F E7E2 LDI R30,0x72
0050 E0F0 LDI R31,0
0051 E6A0 LDI R26,0x60
0052 E0B0 LDI R27,0
0053 E010 LDI R17,0
0054 37EA CPI R30,0x7A
0055 07F1 CPC R31,R17
0056 F021 BEQ 0x005B
0057 95C8 LPM
0058 9631 ADIW R30,1
0059 920D ST R0,X+
005A CFF9 RJMP 0x0054
005B 940E0279 CALL _main
_exit:
005D CFFF RJMP _exit
FILE: E:\单片机\AVR程序\温度传感器\1820.c
(0001)
(0002) #include <iom16v.h>
(0003) #include <macros.h>
(0004)
(0005) #define LCD_RS_PORT PORTA //以下2个要设为同一个口，4脚
(0006) #define LCD_RS_DDR DDRA
(0007) #define LCD_RW_PORT PORTA //以下2个要设为同一个口，5脚
(0008) #define LCD_RW_DDR DDRA
(0009) #define LCD_EN_PORT PORTA //以下2个要设为同一个口，6脚
(0010) #define LCD_EN_DDR DDRA
(0011)
(0012)
(0013) #define LCD_DATA_PORT PORTA //以下3个要设为同一个口
(0014) #define LCD_DATA_DDR DDRA //一定要用高4位
(0015) #define LCD_DATA_PIN PINA
(0016)
(0017)
(0018) #define LCD_RS (1<<PA1) //
(0019) #define LCD_RW (1<<PA2)
(0020) #define LCD_EN (1<<PA3) //
(0021) #define LCD_DATA ((1<<PA4)|(1<<PA5)|(1<<PA6)|(1<<PA7)) //
(0022)
(0023)
(0024) /*--------------------------------------------------------------------------------------------------
(0025) 液晶函数说明
(0026) --------------------------------------------------------------------------------------------------*/
(0027) void LCD_init(void);
(0028) void LCD_en_write(void);
(0029) void LCD_write_command(unsigned char command) ;
(0030) void LCD_write_data(unsigned char data);
(0031) void LCD_set_xy (unsigned char x, unsigned char y);
(0032) void LCD_write_string(unsigned char X,unsigned char Y,unsigned char *s);
(0033) void LCD_write_char(unsigned char X,unsigned char Y,unsigned char data);
(0034) void delay_nus(unsigned int n);
(0035) void delay_nms(unsigned int n);
(0036)
(0037) /*--------------------------------------------------------------------------------------------------
(0038) 液晶驱动程序
(0039) --------------------------------------------------------------------------------------------------*/
(0040)
(0041) void LCD_init(void) //液晶初始化
(0042) {
(0043) LCD_DATA_DDR|=LCD_DATA; //数据口方向为输出
_LCD_init:
005E B38A IN R24,0x1A
005F 6F80 ORI R24,0xF0
0060 BB8A OUT 0x1A,R24
(0044) LCD_EN_DDR|=LCD_EN; //设置EN方向为输出
0061 9AD3 SBI 0x1A,3
(0045) LCD_RS_DDR|=LCD_RS; //设置RS方向为输出
0062 9AD1 SBI 0x1A,1
(0046)
(0047) LCD_RW_DDR|=LCD_RW;////////////////////////////////////
0063 9AD2 SBI 0x1A,2
(0048) LCD_RW_PORT&=~LCD_RW;/////////////////////////////////
0064 98DA CBI 0x1B,2
(0049)
(0050) LCD_write_command(0x28);
0065 E208 LDI R16,0x28
0066 D017 RCALL _LCD_write_command
(0051) LCD_en_write();
0067 D00D RCALL _LCD_en_write
(0052) delay_nus(40);
0068 E208 LDI R16,0x28
0069 E010 LDI R17,0
006A D1DC RCALL _delay_nus
(0053) LCD_write_command(0x28); //4位显示
006B E208 LDI R16,0x28
006C D011 RCALL _LCD_write_command
(0054) LCD_write_command(0x0c); //显示开
006D E00C LDI R16,0xC
006E D00F RCALL _LCD_write_command
(0055) LCD_write_command(0x01); //清屏
006F E001 LDI R16,1
0070 D00D RCALL _LCD_write_command
(0056) delay_nms(10);
0071 E00A LDI R16,0xA
0072 E010 LDI R17,0
0073 D1EC RCALL _delay_nms
0074 9508 RET
(0057)
(0058) }
(0059)
(0060) void LCD_en_write(void) //液晶使能
(0061) {
(0062) LCD_EN_PORT|=LCD_EN;
_LCD_en_write:
0075 9ADB SBI 0x1B,3
(0063) delay_nus(1);
0076 E001 LDI R16,1
0077 E010 LDI R17,0
0078 D1CE RCALL _delay_nus
(0064) LCD_EN_PORT&=~LCD_EN;
0079 98DB CBI 0x1B,3
(0065) delay_nus(1);
007A E001 LDI R16,1
007B E010 LDI R17,0
007C D1CA RCALL _delay_nus
007D 9508 RET
_LCD_write_command:
command --> R20
007E 940E02D6 CALL push_gset1
0080 2F40 MOV R20,R16
(0066)
(0067) }
(0068)
(0069) void LCD_write_command(unsigned char command)
(0070) //_write_command(0x0b)不显示
(0071) //LCD_write_command(0x0c)开显示
(0072) //LCD_write_command(0x0d)开显示闪且闪
(0073) //LCD_write_command（0x0e）开显示闪且不闪
(0074) {
(0075) delay_nus(16);
0081 E100 LDI R16,0x10
0082 E010 LDI R17,0
0083 D1C3 RCALL _delay_nus
(0076) LCD_RS_PORT&=~LCD_RS; //RS=0
0084 98D9 CBI 0x1B,1
(0077) LCD_DATA_PORT&=0X0f; //清高四位
0085 B38B IN R24,0x1B
0086 708F ANDI R24,0xF
0087 BB8B OUT 0x1B,R24
(0078) LCD_DATA_PORT|=command&0xf0; //写高四位
0088 2F84 MOV R24,R20
0089 7F80 ANDI R24,0xF0
008A B22B IN R2,0x1B
008B 2A28 OR R2,R24
008C BA2B OUT 0x1B,R2
(0079) LCD_en_write();
008D DFE7 RCALL _LCD_en_write
(0080) command=command<<4; //低四位移到高四位
008E 2F84 MOV R24,R20
008F 708F ANDI R24,0xF
0090 9582 SWAP R24
0091 2F48 MOV R20,R24
(0081) LCD_DATA_PORT&=0x0f; //清高四位
0092 B38B IN R24,0x1B
0093 708F ANDI R24,0xF
0094 BB8B OUT 0x1B,R24
(0082) LCD_DATA_PORT|=command&0xf0; //写低四位
0095 2F84 MOV R24,R20
0096 7F80 ANDI R24,0xF0
0097 B22B IN R2,0x1B
0098 2A28 OR R2,R24
0099 BA2B OUT 0x1B,R2
(0083) LCD_en_write();
009A DFDA RCALL _LCD_en_write
009B 940E02D9 CALL pop_gset1
009D 9508 RET
_LCD_write_data:
data --> R20
009E 940E02D6 CALL push_gset1
00A0 2F40 MOV R20,R16
(0084)
(0085) }
(0086)
(0087) void LCD_write_data(unsigned char data) //写数据
(0088) {
(0089) delay_nus(16);
00A1 E100 LDI R16,0x10
00A2 E010 LDI R17,0
00A3 D1A3 RCALL _delay_nus
(0090) LCD_RS_PORT|=LCD_RS; //RS=1
00A4 9AD9 SBI 0x1B,1
(0091) LCD_DATA_PORT&=0X0f; //清高四位
00A5 B38B IN R24,0x1B
00A6 708F ANDI R24,0xF
00A7 BB8B OUT 0x1B,R24
(0092) LCD_DATA_PORT|=data&0xf0; //写高四位
00A8 2F84 MOV R24,R20
00A9 7F80 ANDI R24,0xF0
00AA B22B IN R2,0x1B
00AB 2A28 OR R2,R24
00AC BA2B OUT 0x1B,R2
(0093) LCD_en_write();
00AD DFC7 RCALL _LCD_en_write
(0094) data=data<<4; //低四位移到高四位
00AE 2F84 MOV R24,R20
00AF 708F ANDI R24,0xF
00B0 9582 SWAP R24
00B1 2F48 MOV R20,R24
(0095) LCD_DATA_PORT&=0X0f; //清高四位
00B2 B38B IN R24,0x1B
00B3 708F ANDI R24,0xF
00B4 BB8B OUT 0x1B,R24
(0096) LCD_DATA_PORT|=data&0xf0; //写低四位
00B5 2F84 MOV R24,R20
00B6 7F80 ANDI R24,0xF0
00B7 B22B IN R2,0x1B
00B8 2A28 OR R2,R24
00B9 BA2B OUT 0x1B,R2
(0097) LCD_en_write();
00BA DFBA RCALL _LCD_en_write
00BB 940E02D9 CALL pop_gset1
00BD 9508 RET
_LCD_set_xy:
address --> R20
y --> R20
x --> R22
00BE 940E02D4 CALL push_gset2
00C0 2F42 MOV R20,R18
00C1 2F60 MOV R22,R16
(0098)
(0099) }
(0100)
(0101)
(0102) void LCD_set_xy( unsigned char x, unsigned char y ) //写地址函数
(0103) {
(0104) unsigned char address;
(0105) if (y == 0) address = 0x80 + x;
00C2 2344 TST R20
00C3 F419 BNE 0x00C7
00C4 2F46 MOV R20,R22
00C5 5840 SUBI R20,0x80
00C6 C002 RJMP 0x00C9
(0106) else address = 0xc0 + x;
00C7 2F46 MOV R20,R22
00C8 5440 SUBI R20,0x40
(0107) LCD_write_command( address);
00C9 2F04 MOV R16,R20
00CA DFB3 RCALL _LCD_write_command
00CB 940E02C5 CALL pop_gset2
00CD 9508 RET
_LCD_write_string:
s --> R20
Y --> R10
X --> R22
00CE 940E02D2 CALL push_gset3
00D0 2EA2 MOV R10,R18
00D1 2F60 MOV R22,R16
00D2 814E LDD R20,Y+6
00D3 815F LDD R21,Y+7
(0108)
(0109) }
(0110)
(0111) void LCD_write_string(unsigned char X,unsigned char Y,unsigned char *s) //列x=0~15,行y=0,1
(0112) {
(0113) LCD_set_xy( X, Y ); //写地址
00D4 2D2A MOV R18,R10
00D5 2F06 MOV R16,R22
00D6 DFE7 RCALL _LCD_set_xy
00D7 C005 RJMP 0x00DD
(0114) while (*s) // 写显示字符
(0115) {
(0116) LCD_write_data( *s );
00D8 01FA MOVW R30,R20
00D9 8100 LDD R16,Z+0
00DA DFC3 RCALL _LCD_write_data
(0117) s ++;
00DB 5F4F SUBI R20,0xFF
00DC 4F5F SBCI R21,0xFF
00DD 01FA MOVW R30,R20
00DE 8020 LDD R2,Z+0
00DF 2022 TST R2
00E0 F7B9 BNE 0x00D8
00E1 940E02C8 CALL pop_gset3
00E3 9508 RET
_LCD_write_char:
data --> Y+4
Y --> R22
X --> R20
00E4 940E02D4 CALL push_gset2
00E6 2F62 MOV R22,R18
00E7 2F40 MOV R20,R16
(0118) }
(0119)
(0120) }
(0121)
(0122) void LCD_write_char(unsigned char X,unsigned char Y,unsigned char data) //列x=0~15,行y=0,1
(0123) {
(0124) LCD_set_xy( X, Y ); //写地址
00E8 2F26 MOV R18,R22
00E9 2F04 MOV R16,R20
00EA DFD3 RCALL _LCD_set_xy
(0125) LCD_write_data( data);
00EB 810C LDD R16,Y+4
00EC DFB1 RCALL _LCD_write_data
00ED 940E02C5 CALL pop_gset2
00EF 9508 RET
(0126)
(0127) }
(0128)
(0129) /*--------------------------------------------------------------------------------------------------
(0130) 液晶驱动程序
(0131) --------------------------------------------------------------------------------------------------*/
(0132)
(0133)
(0134)
(0135)
(0136)
(0137)
(0138)
(0139) #define uchar unsigned char
(0140) #define uint unsigned int
(0141) #define ulong unsigned long
(0142) /******************************************************************************
(0143) //全局变量
(0144) ******************************************************************************/
(0145)
(0146)
(0147)
(0148) /******************************************************************************
(0149) DS18B20驱动程序
(0150) ******************************************************************************/
(0151)
(0152) /********************************************************************************/
(0153) // 下面为DS18B20温度传感模块 //
(0154) /********************************************************************************/
(0155) /********************************************************************************
(0156) 位变量操作宏定义
(0157) ********************************************************************************/
(0158) #define BIT_SET(a,b) a|=BIT(b)
(0159) #define BIT_CLR(a,b) a&=~BIT(b)
(0160) #define BIT_INV(a,b) a^=BIT(b)
(0161) #define BIT_STATUS(a,b) a&BIT(b)
(0162) /********************************************************************************
(0163) DS18B20操作定义
(0164) ********************************************************************************/
(0165) #define CLR_DS18B20 BIT_CLR(PORTB,PB1) //数据线强制拉低
(0166) #define SET_DS18B20 BIT_SET(PORTB,PB1) //数据线强制拉高，上拉
(0167) #define HLD_DS18B20 BIT_SET(DDRB,PB1) //Mega16控制总线
(0168) #define RLS_DS18B20 BIT_CLR(DDRB,PB1) //释放总线
(0169) #define STU_DS18B20 BIT_STATUS(PINB,PB1) //数据线的状态
(0170)
(0171)
(0172) /**********************************************************************
(0173) functionName: void delayUs(BYTE temp)
(0174) description ：延时函数 晶振频率：7.3728MHZ
(0175) delayUs(1); //2.71us
(0176) delayUs(2); //3.53us
(0177) delayUs(4); //5.15us
(0178) delayUs(8); //8.41us
(0179) delayUs(16); //14.92us
(0180) delayUs(32); //27.94us
(0181) delayUs(64); //53.98us
(0182) delayUs(128); //106.07us
(0183) delayUs(255); //209.42us
(0184) delayUs(18); //16.55us
(0185) delayUs(34); //29.57us
(0186) delayUs(35); //30.38us
(0187) delayUs(100); //83.28
(0188) _NOP(); //0.14us
(0189) **********************************************************************/
(0190) void delayUs(unsigned char temp)
(0191) {
(0192) while(temp--);
_delayUs:
temp --> R16
00F0 2E20 MOV R2,R16
00F1 2433 CLR R3
00F2 5001 SUBI R16,1
00F3 2022 TST R2
00F4 F7D9 BNE 0x00F0
00F5 9508 RET
_resetDS18B20:
errTime --> R20
00F6 940E02D6 CALL push_gset1
(0193) }
(0194)
(0195) /**********************************************************************
(0196) functionName: BYTE resetDS18B20(void)
(0197) description ：DS18B20初始化1
(0198) **********************************************************************/
(0199) unsigned char resetDS18B20(void)
(0200) {
(0201) unsigned char errTime=0;
00F8 2744 CLR R20
(0202) RLS_DS18B20; //释放总线
00F9 98B9 CBI 0x17,1
(0203) _NOP();
00FA 0000 NOP
(0204) HLD_DS18B20; //Maga16控制总线
00FB 9AB9 SBI 0x17,1
(0205) CLR_DS18B20; //强制拉低
00FC 98C1 CBI 0x18,1
(0206) delayUs(255); //209.42us
00FD EF0F LDI R16,0xFF
00FE DFF1 RCALL _delayUs
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