📄 tcmain.lst
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C51 COMPILER V7.09 TCMAIN 06/27/2004 13:42:31 PAGE 1
C51 COMPILER V7.09, COMPILATION OF MODULE TCMAIN
OBJECT MODULE PLACED IN TCMain.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE TCMain.c ROM(SMALL) BROWSE DEBUG OBJECTEXTEND TABS(2) SRC(.\TCMain.SRC)
line level source
1 /*-------------------------------
2
3 温度控制器V1.5
4 显示为三个共阳极LED
5 温度传感器用单总线DS18B20
6 CPU为2051，四个按键，分别为UP，DOWN，SET
7 温度调节上限为125度，下限为-55度
8 只能用于单只18B20
9
10 本软件仅供学习与参考，引用时请注明版权
11
12 http://www.cdle.net
13 明浩 2004/1/2
14 pnzwzw@cdle.net
15 -------------------------------*/
16
17 #include <AT89X051.H>
18 #include <intrins.h>
19 #define Key_UP P3_0 //上调温度
20 #define Key_DOWN P3_1 //下调温度
21 #define Key_SET P1_7 //设定键（温度设定，长按开电源）
22 #define RelayOutPort P3_5 //继电器输出
23 #define LEDPort P1 //LED控制口
24 #define LEDOneC P3_2 //LED DS1控制（百位）
25 #define LEDTwoC P3_3 //LED DS2控制（十位）
26 #define LEDThreeC P3_4 //LED DS3控制（个位）
27 #define TMPort P3_7 //DS1820 DataPort
28
29 unsigned char code LEDDis[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xFF,0xBF}; //0-9的LED笔划,
-0xFF为空,0xF7为负号
30
31 static unsigned char bdata StateREG; //可位寻址的状态寄存器
32 sbit DS1820ON = StateREG^0; //DS1820是否存在
33 sbit SetTF = StateREG^1; //是否是在温度设置状态
34 sbit KeySETDown = StateREG^2; //是否已按过SET键标识
35 sbit PowTF = StateREG^3; //电源电源标识
36 sbit KeyTF = StateREG^4; //键盘是否允许
37
38 //sbit KeySETDowning = StateREG^5; //SET是否正在按下
39 static unsigned char bdata TLV _at_ 0x0029; //温度变量高低位
40 static unsigned char bdata THV _at_ 0x0028;
41 static signed char TMV; //转换后的温度值
42 static unsigned char KeyV,TempKeyV; //键值
43 static signed char TMRomV _at_ 0x0027; //高温限制
44 static signed char TMSetV _at_ 0x0026; //温度设定值
45 static unsigned char KSDNum; //SET键连按时的采集次数
46 static unsigned char IntNum,IntNum2,IntNum3; //中断发生次数，IntNum用于SET长按检测，IntNum2用于设定状态
-时LED闪烁
47 static signed char LED_One,LED_Two,LED_Three; //LED的显示位 LED_One为十位，LED_Two为个位
48 static unsigned char Sign; //负号标识
49
50 void main(void)
51 {
52 1 void InitDS1820(void); //定义函数
53 1 void ROMDS1820(void);
C51 COMPILER V7.09 TCMAIN 06/27/2004 13:42:31 PAGE 2
54 1 void TMVDS1820(void);
55 1 void TMRDS1820(void);
56 1 void TMWDS1820(void);
57 1 void TMREDS1820(void);
58 1 void TMERDS1820(void);
59 1 void ReadDS1820(void);
60 1 void WriteDS1820(void);
61 1 void Delay_510(void);
62 1 void Delay_110(void);
63 1 void Delay_10ms(void);
64 1 void Delay_4s(void);
65 1 void V2ToV(void);
66 1
67 1 StateREG = 0; //初始化变量
68 1 SetTF = 1;
69 1 PowTF = 1; //关电源
70 1 THV = 0;
71 1 TLV = 0;
72 1 TMV = 0;
73 1 KeyV = 0;
74 1 TempKeyV = 0;
75 1 KSDNum = 0;
76 1 IntNum = 0;
77 1 IntNum2 = 0;
78 1 IntNum3 = 0;
79 1 LED_One = 0;
80 1 LED_Two = 0;
81 1
82 1 InitDS1820(); //初始化
83 1 ROMDS1820(); //跳过ROM
84 1 TMERDS1820(); //E2PRAM中温度上限值调入RAM
85 1 InitDS1820(); //初始化
86 1 ROMDS1820(); //跳过ROM
87 1 TMRDS1820(); //读出温度指令
88 1 ReadDS1820(); //读出温度值和上限值
89 1 TMSetV = TMRomV; //拷贝保存在DS18B20ROM里的上限值到TMSetV
90 1
91 1 EA = 1; //允许CPU中断
92 1 ET0 = 1; //定时器0中断打开
93 1 TMOD = 0x1; //设定时器0为模式1，16位模式
94 1 TH0=0xB1;
95 1 TL0=0xDF; //设定时值为20000us（20ms）
96 1 TR0 = 1; //开始定时
97 1 while(1);
98 1 }
99
100 //定时器0中断外理中键扫描和显示
101 void KeyAndDis_Time0(void) interrupt 1 using 2
102 {
103 1 TH0=0xB1;
104 1 TL0=0xDF; //设定时值为20000us（20ms)
105 1
106 1 LEDPort = 0xFF;
107 1 if (!Key_UP)
108 1 KeyV = 1;
109 1 if (!Key_DOWN)
110 1 KeyV = 2;
111 1 if (!Key_SET)
112 1 KeyV = 3;
113 1 //KeySETDowning = 0; //清除
114 1 if (KeyV != 0) //有键按下
115 1 {
C51 COMPILER V7.09 TCMAIN 06/27/2004 13:42:31 PAGE 3
116 2 Delay_10ms(); //延时防抖 按下10ms再测
117 2 if (!Key_UP)
118 2 TempKeyV = 1;
119 2 if (!Key_DOWN)
120 2 TempKeyV = 2;
121 2 if (!Key_SET)
122 2 TempKeyV = 3;
123 2 if (KeyV == TempKeyV) //两次值相等为确定接下了键
124 2 {
125 3 if (KeyV == 3) //按下SET键，如在SET状态就退出，否则进入
126 3 {
127 4 //KeySETDowning = 1; //表明SET正在按下
128 4 PowTF = 0; //电源标识开
129 4 if (!KeyTF)
130 4 if (SetTF)
131 4 {
132 5 SetTF = 0; //标识位标识退出设定
133 5 InitDS1820(); //初始化
134 5 ROMDS1820(); //跳过ROM
135 5 TMWDS1820(); //写温度上限指令
136 5 WriteDS1820(); //写温度上限到DS18B20ROM
137 5 WriteDS1820(); //写温度上限到DS18B20ROM
138 5 WriteDS1820(); //写温度上限到DS18B20ROM
139 5 InitDS1820(); //初始化
140 5 ROMDS1820(); //跳过ROM
141 5 TMREDS1820(); //温度上限值COPY回E2PRAM
142 5 }
143 4 else
144 4 SetTF = 1;
145 4 if (!KeySETDown) //没有第一次按下SET时，KeySETDown标识置1
146 4 KeySETDown = 1;
147 4 else
148 4 KSDNum = KSDNum + 1; //前一秒内有按过SET则开始计数
149 4 }
150 3 if (SetTF) //在SET状态下
151 3 {
152 4 if ((KeyV == 1) && (!KeyTF))
153 4 TMSetV = TMSetV + 1; //上调温度
154 4 if ((KeyV == 2) && (!KeyTF))
155 4 TMSetV = TMSetV - 1; //下调温度
156 4 if (TMSetV <= -55) //限制温度上下限
157 4 TMSetV = -55;
158 4 if (TMSetV >= 125)
159 4 TMSetV = 125;
160 4 }
161 3 if ((!KeyTF) && (IntNum3 == 0)) KeyTF = 1; //当键盘处于可用时，锁定
162 3 }
163 2
164 2 if (KeySETDown) //在2秒内按下了SET则计中断发生次数用于长按SET时计时用
165 2 IntNum = IntNum + 1;
166 2 if (IntNum > 55) //中断发生了55次时（大约1.2秒）75为1.5秒左右
167 2 {
168 3 IntNum = 0;
169 3 KeySETDown = 0;
170 3 if (KSDNum == 55) //如一直长按了SET1.2秒左右
171 3 {
172 4 RelayOutPort = 1; //关闭继电器输出
173 4 PowTF = 1; //电源标识关
174 4 LEDOneC = 0;
175 4 LEDTwoC = 0;
176 4 LEDThreeC = 0;
177 4 LEDPort = 0xBF; //显示"--"
C51 COMPILER V7.09 TCMAIN 06/27/2004 13:42:31 PAGE 4
178 4 Delay_4s(); //延时
179 4 LEDOneC = 1;
180 4 LEDTwoC = 1; //关显示
181 4 LEDThreeC = 1;
182 4 Delay_4s();
183 4 IntNum = 0;
184 4 IntNum2 = 0;
185 4 IntNum3 = 0;
186 4 }
187 3 KSDNum = 0;
188 3 }
189 2 }
190 1 KeyV = 0;
191 1 TempKeyV = 0; //清空变量准备下次键扫描
192 1
193 1 if (!PowTF)
194 1 {
195 2 InitDS1820(); //初始化
196 2 ROMDS1820(); //跳过ROM
197 2 TMVDS1820(); //温度转换指令
198 2
199 2 Delay_510();
200 2 Delay_510(); //延时等待转换完成
201 2
202 2 InitDS1820(); //初始化
203 2 ROMDS1820(); //跳过ROM
204 2 TMRDS1820(); //读出温度指令
205 2 ReadDS1820(); //读出温度值
206 2
207 2 V2ToV(); //转换显示值
208 2 if (TMV > TMSetV) //根据采集到的温度值控制继电器
209 2 {
210 3 RelayOutPort = 0;
211 3 }
212 2 else
213 2 {
214 3 RelayOutPort = 1;
215 3 }
216 2
217 2 if (SetTF) IntNum2 = IntNum2 + 1; //用于闪烁计数
218 2 if (IntNum2 > 50 ) IntNum2 = 0;
219 2 if (KeyTF) IntNum3 = IntNum3 + 1; //用于防止按键连按
220 2 if (IntNum3 > 25)
221 2 {
222 3 IntNum3 = 0;
223 3 KeyTF = 0;
224 3 }
225 2
226 2 if ((SetTF) && (IntNum2 < 25)) goto InitEnd; //计数在后半段时显示
227 2 LEDPort = LED_One;
228 2 LEDOneC = 0;
229 2 Delay_510();
230 2 LEDOneC = 1; //显示百位数
231 2 LEDPort = LED_Two;
232 2 LEDTwoC = 0;
233 2 Delay_510();
234 2 LEDTwoC = 1; //显示十位数
235 2 LEDPort = LED_Three;
236 2 LEDThreeC = 0;
237 2 Delay_510();
238 2 LEDThreeC = 1; //显示个位数
239 2 }
C51 COMPILER V7.09 TCMAIN 06/27/2004 13:42:31 PAGE 5
240 1 InitEnd:;
241 1 }
242
243 void V2ToV(void) //数值转换
244 {
245 1 TLV = TLV >> 4;
246 1 THV = THV << 4; //读出的高低位数值移位
247 1 TMV = TLV | THV; //合并高低位放入TM为实际温度值
248 1 Sign = 0;
249 1 if (SetTF || !Key_SET)
250 1 Sign = TMSetV >> 7; //取符号
251 1 else
252 1 Sign = TMV >> 7;
253 1
254 1 if (Sign)
255 1 {
256 2 if (SetTF || !Key_SET)
257 2 {
258 3 LED_One = (~(TMSetV-1)) / 100; //SET状态下显示设定值
259 3 LED_Two = ((~(TMSetV-1)) - LED_One * 100)/10;
260 3 LED_Three = (~(TMSetV-1)) - LED_One * 100 - LED_Two * 10;
261 3 }
262 2 else
263 2 {
264 3 LED_One = (~TMV) / 100; //转换百位值
265 3 LED_Two = ((~TMV) - LED_One * 100)/10;
266 3 LED_Three = (~TMV) - LED_One * 100 - LED_Two * 10;
267 3 }
268 2 }
269 1 else
270 1 {
271 2 if (SetTF || !Key_SET)
272 2 {
273 3 LED_One = (TMSetV) / 100; //SET状态下显示设定值
274 3 LED_Two = (TMSetV - LED_One * 100)/10;
275 3 LED_Three = TMSetV - LED_One * 100 - LED_Two * 10;
276 3 }
277 2 else
278 2 {
279 3 LED_One = (TMV) / 100; //转换百位值
280 3 LED_Two = (TMV - LED_One * 100)/10;
281 3 LED_Three = TMV - LED_One * 100 - LED_Two * 10;
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