📄 text1.lst
字号:
C51 COMPILER V7.02a TEXT1 08/21/2007 15:06:16 PAGE 1
C51 COMPILER V7.02a, COMPILATION OF MODULE TEXT1
OBJECT MODULE PLACED IN Text1.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE Text1.c BROWSE DEBUG OBJECTEXTEND
stmt level source
1 #include"reg51.h"
2
3 //*******************LCD模块
4
5 #define LCD_DATA P1 //LCD的数据口
6
7 sbit LCD_BUSY=LCD_DATA^7; //LCD忙信号位
8
9 sbit LCD_RS=P0^0; //LCD寄存器选择
10 sbit LCD_RW=P0^1; //LCD读写控制
11 sbit LCD_EN=P0^2; //LCD使能信号
12
13
14 void LCD_check_busy(void) //检测LCD状态，看它是不是还在忙呢
15 {
16 1 while(1)
17 1 {
18 2 LCD_EN=0;
19 2 LCD_RS=0; //指令寄存器通信
20 2 LCD_RW=1; //read data
21 2 LCD_DATA=0xff;
22 2 LCD_EN=1;
23 2 if(!LCD_BUSY)break;
24 2 }
25 1 LCD_EN=0;
26 1 }
27
28 void LCD_cls(void) //LCD清屏
29 {
30 1
31 1 LCD_check_busy();
32 1 LCD_RS=0;
33 1 LCD_RW=0;
34 1 LCD_DATA=1;
35 1 LCD_EN=1;
36 1 LCD_EN=0;
37 1
38 1 }
39
40 void LCD_write_instruction(unsigned char LCD_instruction) //写指令到LCD
41 {
42 1 LCD_check_busy();
43 1 LCD_RS=0;
44 1 LCD_RW=0; //写数据
45 1
46 1 LCD_DATA=LCD_instruction;
47 1 LCD_EN=1;
48 1 LCD_EN=0;
49 1 }
50
51 void LCD_write_data(unsigned char LCD_data) //输出一个字节数据到LCD
52 {
53 1 LCD_check_busy();
54 1 LCD_RS=1;
55 1 LCD_RW=0;
C51 COMPILER V7.02a TEXT1 08/21/2007 15:06:16 PAGE 2
56 1
57 1 LCD_DATA=LCD_data;
58 1 LCD_EN=1;
59 1 LCD_EN=0;
60 1 }
61
62 void LCD_set_position(unsigned char x) //LCD光标定位到x处
63 {
64 1 LCD_write_instruction(0x80+x);
65 1 }
66
67
68
69
70
71 void LCD_printc(unsigned char lcd_data) //输出一个字符到LCD
72 {
73 1 LCD_write_data(lcd_data);
74 1 }
75
76 void LCD_prints(unsigned char *lcd_string) //输出一个字符串到LCD
77 {
78 1 unsigned char i=0;
79 1 while(lcd_string[i]!=0x00)
80 1 {
81 2 LCD_write_data(lcd_string[i]);
82 2 i++;
83 2 }
84 1 }
85
86 void LCD_initial(void) //初始化LCD
87 {
88 1 LCD_write_instruction(0x3c);
89 1 LCD_write_instruction(0x0c);
90 1 LCD_write_instruction(0x06);//显示屏一定要不移动。
91 1 LCD_cls();
92 1 }
93 //*************************LCD模块结束
94
95 //*******************************ds18b20
96 unsigned char ds18b20_num1[8]={0x8e,0x00,0x00,0x00,0xb8,0xc5,0x30,0x28};
97 unsigned char ds18b20_num2[8]={0xb9,0X00,0X00,0x00,0xb8,0Xc5,0X31,0X28};
98 unsigned char ds18b20_num3[8]={0xe0,0x00,0x00,0x00,0xb8,0xc5,0x32,0x28};
99 sbit DQ =P3^6; //定义通信端口
100
101 //延时函数
102
103 void delay(unsigned int i)
104 {
105 1 while(i--);
106 1 }
107
108 //初始化函数
109 unsigned char Init_DS18B20(void)
110 {
111 1 unsigned char x=0;
112 1 DQ = 1; //DQ复位
113 1 delay(8); //稍做延时
114 1 DQ = 0; //单片机将DQ拉低
115 1 delay(80); //精确延时 大于 480us
116 1 DQ = 1; //拉高总线
117 1 delay(14);
C51 COMPILER V7.02a TEXT1 08/21/2007 15:06:16 PAGE 3
118 1 x=DQ; //稍做延时后 如果x=0则初始化成功 x=1则初始化失败
119 1 delay(20);
120 1 return (x);
121 1 }
122
123 //读一个字节
124 ReadOneChar(void)
125 {
126 1 unsigned char i=0;
127 1 unsigned char dat = 0;
128 1 for (i=8;i>0;i--)
129 1 {
130 2 DQ = 0; // 给脉冲信号
131 2 dat>>=1;
132 2 DQ = 1; // 给脉冲信号
133 2 if(DQ)
134 2 dat|=0x80;
135 2 delay(4);
136 2 }
137 1 return(dat);
138 1 }
139
140 //写一个字节
141 WriteOneChar(unsigned char dat)
142 {
143 1 unsigned char i=0;
144 1 for (i=8; i>0; i--)
145 1 {
146 2 DQ = 0;
147 2 DQ = dat&0x01;
148 2 delay(5);
149 2 DQ = 1;
150 2 dat>>=1;
151 2 }
152 1 //delay(4);
153 1 }
154 unsigned char * read_rom(void)
155 {
156 1 unsigned char rom[8],i;
157 1 Init_DS18B20();
158 1 WriteOneChar(0x33);
159 1 for(i=8;i>0;i--)
160 1 {
161 2 rom[i-1]=ReadOneChar();
162 2 }
163 1 return &rom[0];
164 1 }
165 bit match_rom(unsigned char *rom)
166 {
167 1 unsigned char i;
168 1 //Init_DS18B20();
169 1 WriteOneChar(0x55);
170 1 for(i=8;i>0;i--)
171 1 {
172 2 WriteOneChar(*(rom+i-1));
173 2 // rom++;
174 2 }
175 1 return 1;
176 1 }
177
178 //读取温度
179 ReadTemperature(unsigned char n)
C51 COMPILER V7.02a TEXT1 08/21/2007 15:06:16 PAGE 4
180 {
181 1 unsigned char a=0;
182 1 unsigned char b=0;
183 1 unsigned int t=0;
184 1 float tt=0;
185 1 Init_DS18B20();
186 1 WriteOneChar(0xCC); // 跳过读序号列号的操作
187 1 WriteOneChar(0x44); // 启动温度转换
188 1 Init_DS18B20();
189 1 //WriteOneChar(0xCC); //跳过读序号列号的操作
190 1 //if (n==1) match_rom(ds18b20_num1);
191 1 //else if (n==2) match_rom(ds18b20_num2);
192 1 //else if (n==3) match_rom(ds18b20_num3);
193 1 //.......................
194 1 //else if (n==0)
195 1 WriteOneChar(0xCC); //跳过读序号列号的操作
196 1 WriteOneChar(0xBE); //读取温度寄存器等（共可读9个寄存器） 前两个就是温度
197 1 a=ReadOneChar();
198 1 b=ReadOneChar();
199 1 t=b;
200 1 t<<=8;
201 1 t=t|a;
202 1 tt=t*0.0625;
203 1 t= tt*10+0.5; //放大10倍输出并四舍五入---此行没用
204 1 return(t);
205 1 }
*** WARNING C280 IN LINE 179 OF TEXT1.C: 'n': unreferenced local variable
206 //****************************************ds18b20结束
207 unsigned char TempBuffer[5];
208 void IntToStr(unsigned int t, unsigned char *str, unsigned char n)
209 {
210 1 unsigned char a[5]; char i, j; //取得整数值到数组
211 1 a[0]=t/100; //百位
212 1 a[1]=(t/10)%10;//十位
213 1 a[2]=t%10; //个位
214 1
215 1
216 1 for(i=0; i<3; i++) //转成ASCII码
217 1 a[i]=a[i]+'0';
218 1 for(i=0; a[i]=='0' && i<=3; i++);
219 1 for(j=3-n; j<i; j++) //填充空格
220 1 { *str=' '; str++; }
221 1 for(; i<3; i++)
222 1 { *str=a[i]; str++; } //加入有效的数字
223 1 *str='\0';
224 1 }
225
226
227
228
229 main()
230 {
231 1 //==读取序列号操作。在1602上显示。
232 1 /*unsigned char i;
233 1 unsigned char *ds1820rom;
234 1 ds1820rom=read_rom();
235 1 LCD_initial();
236 1 LCD_set_position(0);
237 1 for(i=0;i<8;i++)
238 1 {unsigned char a;
239 1 a=(*ds1820rom)/16;
240 1 if(a>=0&&a<=9) a=a+'0';
C51 COMPILER V7.02a TEXT1 08/21/2007 15:06:16 PAGE 5
241 1 else if(a>=0x0a &&a<= 0x0f) a=a-10+'a';
242 1 LCD_printc(a);
243 1 a=(*ds1820rom)%16;
244 1 if(a>=0&&a<=9) a=a+'0';
245 1 else if(a>=0x0a &&a<= 0x0f) a=a-10+'a';
246 1 LCD_printc(a);
247 1 ds1820rom++;
248 1 }
249 1 while(1);*/
250 1
251 1
252 1 unsigned int i,a;
253 1 i=ReadTemperature(3); //读温度
254 1
255 1 a=i;
256 1 IntToStr(i,&TempBuffer[0],3);
257 1 LCD_initial();
258 1 LCD_set_position(0);
259 1 LCD_prints("temperature :");
260 1 LCD_set_position(0x40);
261 1 LCD_printc(TempBuffer[0]);
262 1 LCD_printc(TempBuffer[1]);
263 1 LCD_printc('.');
264 1 LCD_printc(TempBuffer[2]);
265 1 LCD_printc(' ');
266 1 LCD_printc(0xDF);
267 1 LCD_printc('C');
268 1 while(1)
269 1 { i=ReadTemperature(3);
270 2 if (i!=a ) //如果有变化
271 2 { a=i;
272 3 IntToStr(i,&TempBuffer[0],3);
273 3 LCD_initial();
274 3 LCD_set_position(0);
275 3 LCD_prints("temperature :");
276 3 LCD_set_position(0x40);
277 3 LCD_printc(TempBuffer[0]);
278 3 LCD_printc(TempBuffer[1]);
279 3 LCD_printc('.');
280 3 LCD_printc(TempBuffer[2]);
281 3 LCD_printc(' ');
282 3 LCD_printc(0xDF);
283 3 LCD_printc('C');
284 3
285 3
286 3 }
287 2 }
288 1
289 1 }
290
MODULE INFORMATION: STATIC OVERLAYABLE
CODE SIZE = 707 ----
CONSTANT SIZE = 14 ----
XDATA SIZE = ---- ----
PDATA SIZE = ---- ----
DATA SIZE = 29 35
IDATA SIZE = ---- ----
BIT SIZE = ---- ----
END OF MODULE INFORMATION.
C51 COMPILATION COMPLETE. 1 WARNING(S), 0 ERROR(S)
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -