Sorry, your browser cannot access this site
This page requires browser support (enable) JavaScript
Learn more >

MengFanjun的博客

主页

标签

蓝桥杯单片机第十三届模拟题01——源代码

蓝桥杯单片机学习

发布于：Apr 8, 2022

1.5k words

7 min

次浏览

还有一天比赛了，先看原题请添加图片描述 很简单，感觉就是前几届不常考的考点，注意那个L10操作

MAIN.C

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
#include<reg51.h>
#include<ds1302.h>
#include<onewire.h>

#define uchar unsigned char
#define uint unsigned int


unsigned char  TIME_buffer2[7];
unsigned char  TIME_buffer1[7];
unsigned char  TIME_buffer[7];
uchar mode;
int temp;
uchar shi;
uchar ge;
uchar shi_p;
uchar ge_p;
int temp2;
uchar count; 
uchar count_a;
//////////////////////////// 0    1     2    3    4    5    6   7    8    9    -   全灭   .
unsigned char code shuzi[]={0XC0,0XF9,0XA4,0XB0,0X99,0X92,0X82,0XF8,0X80,0X90,0xbf,0xff,0x7f};
/////////////////////////// A     b   C     d    E    F    H   L     P    U   n
unsigned char code zimu[]={0x88,0x83,0xc6,0xa1,0x86,0x8e,0x89,0xc7,0x8c,0xc1,0xc8};
////////////////////////////  0     1     2    3    4    5    6    7   
unsigned char code weizhi[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,0x00,0x00,0x00,0x00,0x00,0x00};
//////////////////////////   1    2   3    4    5    6    7    8    灭
unsigned char ledweizhi[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,0xff};

unsigned char code WRITE_RTC_ADDR[7] = 
	{0x80,0x82,0x84,0x86,0x88,0x8a,0x8c};   //定义写操作的日历时钟寄存器地址
unsigned char code READ_RTC_ADDR[7] = 
	{0x81,0x83,0x85,0x87,0x89,0x8b,0xbd};   //定义读操作的日历时钟寄存器地址
unsigned char TIME[7] = 
	{0x00,0x00,0x12,0x18,0x02,0x02,0x20};	//定义日历时钟寄存器配置参数(秒、分、时、日、月、星期、年)
unsigned char code SEG_code[18] = 
	{0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,
	 0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e,
	 0xbf,0x7f};	                        //定义共阳数码管段码内容:0~F,—,.
	
sbit R1=P3^0;
sbit R2=P3^1;
sbit R3=P3^2;
sbit R4=P3^3;
	 
sbit Relay= P0^4; //继电器
sbit Buzz=P0^6;//蜂鸣器
void delay_ms(int ms)
{
	int q,w;
	for(q=0;q<ms;q++){
	for(w=845;w>0;w--);
	}
}
void ledlight(uchar x)
{
	P2=(P2&0X1f)|0x80;
	P0=ledweizhi[x];
}
void DS1302_Config()
{
	unsigned char n;
	Write_Ds1302_Byte(0x8e,0x00);   //允许向内存写入数据
	for(n=0;n<7;n++)
	{
		Write_Ds1302_Byte(WRITE_RTC_ADDR[n],TIME[n]);   //低位先写
	}
	Write_Ds1302_Byte(0x8e,0x80);   //禁止向内存写入数据
}
void shumaguan_shuzi(uchar a,uchar b)
{
	delay_ms(1);
	P2=(P2&0X1f)|0xC0;P0=weizhi[a];
	P2=(P2&0X1f)|0xE0;P0=shuzi[b];
	delay_ms(1);
	//消隐
	P2 = (P2 & 0x1f) | 0xc0;
	P0 = 0x00;
	P2 = P2 & 0x1f;
}
//数码管字母显示
void shumaguan_zimu(uchar a,uchar b)
{
	delay_ms(1);
	P2=(P2&0X1f)|0xC0;P0=weizhi[a];
	P2=(P2&0X1f)|0xE0;P0=zimu[b];
	delay_ms(1);
	//消隐
	P2 = (P2 & 0x1f) | 0xc0;
	P0 = 0x00;
	P2 = P2 & 0x1f;
}
void timer0()  //定时模式
{
	ET0=1;
	EA=1;		
	TMOD &= 0xF0;		
	TH0 = (65535-50000)/256;//50000us=50ms		
	TL0 = (65535-50000)%256;		
	TF0 = 1;		
	TR0 = 1;
}
//数字时钟，需要重装载
void Service_timer0() interrupt 1//定时器0
{
	TH0 = (65535-50000)/256;//50000us=50ms		
	TL0 = (65535-50000)%256;	
	count++;
	if(count==20)   
	{
		count=0;
		count_a++;
	}	
}
//读取实时时间
void DS1302_ReadTime()
{
	unsigned char n;
	for(n=0;n<7;n++)
	{
		TIME_buffer[n]=TIME[n];
	}
	for(n=0;n<7;n++)
	{
		TIME[n] = Read_Ds1302_Byte(READ_RTC_ADDR[n]);
	}
}


//数码管延时函数
void Delay_tube(unsigned char t)
{
	while(t--);
}

//数码管显示
void Show_tube(unsigned char position,unsigned char value)
{
	P2 = (P2 & 0x1f) | 0xc0;//数码管的片选端
	P0 = 0x01 << position;
	P2 = (P2 & 0x1f) | 0xe0;//数码管的数据
	P0 = value;
}

//数码管动态显示
void Display_tube()
{

	Show_tube(0,SEG_code[TIME_buffer[2]/16]);     //显示时的十位(TIME[n]为16进制数，所以除以16)
	Delay_tube(500);
	Show_tube(1,SEG_code[TIME_buffer[2]%16]);     //显示时的个位
	Delay_tube(500);
	
	Show_tube(2,SEG_code[16]);	           //显示分隔符
	Delay_tube(500);

	Show_tube(3,SEG_code[TIME_buffer[1]/16]);     //显示分的十位
	Delay_tube(500);
	Show_tube(4,SEG_code[TIME_buffer[1]%16]);     //显示分的个位
	Delay_tube(500);

	Show_tube(5,SEG_code[16]);             //显示分隔符
	Delay_tube(500);

	Show_tube(6,SEG_code[TIME_buffer[0]/16]);     //显示秒的十位
	Delay_tube(500);
	Show_tube(7,SEG_code[TIME_buffer[0]%16]);     //显示秒的个位
	Delay_tube(500);
	
	P2 = (P2 & 0x1f) | 0xc0;
	P0 = 0x00;
	P2 = P2 & 0x1f;
	
}
void jisuan()
{
if(TIME_buffer[2]==10)
{
	TIME_buffer2[2]=0;
	TIME_buffer1[2]++;
	TIME_buffer[2]=TIME_buffer1[2]<<4|(TIME_buffer2[2]&0x0f);//0x10
}
	if(TIME_buffer[2]==0x1a)
	{
		TIME_buffer2[2]=0;
		TIME_buffer1[2]++;   
		TIME_buffer[2]=TIME_buffer1[2]<<4|(TIME_buffer2[2]&0x0f);
	}
	if(TIME_buffer[2]==0x24)
	{
		TIME_buffer2[2]=0;
		TIME_buffer1[2]=0;
		TIME_buffer[2]=0;  		
	}
	if(TIME_buffer[1]==10)
{
	TIME_buffer2[1]=0;
	TIME_buffer1[1]++;
	TIME_buffer[1]=TIME_buffer1[1]<<4|(TIME_buffer2[1]&0x0f);//0x10
}
	if(TIME_buffer[1]==0x1a)
	{
		TIME_buffer2[1]=0;
		TIME_buffer1[1]++;   
		TIME_buffer[1]=TIME_buffer1[1]<<4|(TIME_buffer2[1]&0x0f);
	}
	if(TIME_buffer[1]==0x2a)
	{
		TIME_buffer2[1]=0;
		TIME_buffer1[1]++;   
		TIME_buffer[1]=TIME_buffer1[1]<<4|(TIME_buffer2[1]&0x0f);
	}
	if(TIME_buffer[1]==0x3a)
	{
		TIME_buffer2[1]=0;
		TIME_buffer1[1]++;   
		TIME_buffer[1]=TIME_buffer1[1]<<4|(TIME_buffer2[1]&0x0f);
	}
	if(TIME_buffer[1]==0x4a)
	{
		TIME_buffer2[1]=0;
		TIME_buffer1[1]++;   
		TIME_buffer[1]=TIME_buffer1[1]<<4|(TIME_buffer2[1]&0x0f);
	}
	if(TIME_buffer[1]==0x5a)
	{
		TIME_buffer2[1]=0;
		TIME_buffer1[1]=0;
		TIME_buffer[1]=0;  		
	}
	

}
void display_ds1302()//显示ds1302的时钟
{
	
		DS1302_ReadTime();
		Display_tube();
		ledlight(0);
}

void Init_Keys()
{
	R1=R2=R3=R4=1;
}
void temperature_get()
{
	uchar high,low;
	init_ds18b20();
	Write_DS18B20(0xcc);
	Write_DS18B20(0x44);

	
	
  init_ds18b20();
	Write_DS18B20(0xcc);
	Write_DS18B20(0xbe);
	low=Read_DS18B20();
	high=Read_DS18B20();
	
	
	temp=((high<<4)|(low>>4));//不带小数点，注掉后面一行就行
	temp2=low&0x0f*100/16;//取小数点两位,注掉上面一行就行
	shi=temp%100/10;//不带小数点
	ge=temp%10;
	shi_p=temp2/10;//带两位小数点
	ge_p=temp%10;
}
void display_temp()
{
	shumaguan_zimu(0,2);
	
	shumaguan_shuzi(5,shi);
	shumaguan_shuzi(6,ge);
	shumaguan_shuzi(6,12);//显示小数点
	shumaguan_shuzi(7,ge_p);
	
	ledlight(1);
}
void select_mode()
{
	switch(mode)
	{
		case(0):display_ds1302();break;
		case(1):temperature_get();display_temp();break;
	}
}
void Scan_S4()
{
	if(R4==0)
	{
		while(R4==0);
		mode++;
		if(mode>1) mode=0;
	}
}
void Scan_S5()
{
	uchar n;
	if(R3==0)
	{
		while(R3==0)display_ds1302();
		    TIME_buffer[2]++;
				jisuan();
	      Write_Ds1302_Byte(0x8e,0x00);   //允许向内存写入数据
	      for(n=0;n<7;n++)
					{
		      Write_Ds1302_Byte(WRITE_RTC_ADDR[n],TIME_buffer[n]);   //低位先写
					}
	     Write_Ds1302_Byte(0x8e,0x80);   //禁止向内存写入数据
			}
}
void Scan_S6()
{
	uchar n;
	if(R2==0)
	{
		while(R2==0)display_ds1302();
		    TIME_buffer[1]++;
				jisuan();
	      Write_Ds1302_Byte(0x8e,0x00);   //允许向内存写入数据
	      for(n=0;n<7;n++)
					{
		      Write_Ds1302_Byte(WRITE_RTC_ADDR[n],TIME_buffer[n]);   //低位先写
					}
	     Write_Ds1302_Byte(0x8e,0x80);   //禁止向内存写入数据
			}
}
void Scan_S7()
{
	uchar n;
	if(R1==0)
	{
		while(R1==0) display_ds1302();
		TIME_buffer[0]=0;
		Write_Ds1302_Byte(0x8e,0x00);   //允许向内存写入数据
	      for(n=0;n<7;n++)
					{
		      Write_Ds1302_Byte(WRITE_RTC_ADDR[n],TIME_buffer[n]);   //低位先写
					}
	   Write_Ds1302_Byte(0x8e,0x80);   //禁止向内存写入数据
		}
}
void alarm()
{
	if(TIME_buffer[0]==0x00&&TIME_buffer[1]==0x00)
	{
		P2=0xA0;Relay=1;Buzz=0;
			
	}
else if(count_a%3==0)
		{
			P2=0xA0;Relay=0;Buzz=0;
		}
}
void main()
{
	Init_Keys();
	DS1302_Config();
	timer0();
	while(1)
	{
		temperature_get();
		Scan_S7();
		Scan_S6();
		Scan_S5();
		Scan_S4();
		select_mode();
		alarm();
	}
}

写复杂了，大家主要看思路简化

博客内容遵循 署名-非商业性使用-相同方式共享 4.0 国际 (CC BY-NC-SA 4.0) 协议

本文永久链接是：https://mengfanjun020906.github.io/2022/04/08/蓝桥杯单片机第十三届模拟题01——源代码/

更新于：Mar 24, 2023

单片机

嵌入式硬件

蓝桥杯

评论