开源项目Arduino mini328连接TEA5767 收音机源码及电路

pww999

转自：http://www.electronicsblog.net  

欢迎各位讨论及增加功能.....................................

手头上有一个TEA5767收音机电路 搜索了下网络 收集了相关教程 ，

还在了解代码,S1及S2是向上或向下搜台，由于接线太多.好象不太灵敏及噪音比较大，没有自搜保存电台功能?

用AD9.4画了个简单接线电路图, L R 须接功放放大音量

接线电路图在最下面.pdf

用arduino 0023  编写通过


手机3.7V电池，收听了3个小时运行正常，

新人 未知道怎么发代码，直接粘出来了~

源码:

1. /// Arduino FM receiver with TEA5767
   
2. #include <Wire.h>
   
3. #include <LiquidCrystal.h>
   
4. 
   
5. unsigned char search_mode=0;
   
6. 
   
7. int b=0;
   
8. int c=0;
   
9. 
   
10. #define Button_next 6    //D6   
    
11. #define Button_prev 7    //D7   
    
12. 
    
13. unsigned char frequencyH=0;
    
14. unsigned char frequencyL=0;
    
15. 
    
16. unsigned int frequencyB;
    
17. double frequency=0;
    
18. 
    
19. double freq_available=0;
    
20. 
    
21. LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
    
22. 
    
23. void setup()   {
    
24. 
    
25.   Wire.begin();
    
26.   lcd.begin(16, 2);
    
27. 
    
28.   /// buttons  
    
29. 
    
30.   pinMode(Button_next, INPUT);
    
31.   digitalWrite(Button_next, HIGH); //pull up resistor
    
32. 
    
33.   pinMode(Button_prev, INPUT);
    
34.   digitalWrite(Button_prev, HIGH); //pull up resistor
    
35. 
    
36.   frequency=87.5; //starting frequency
    
37. 
    
38.   frequencyB=4*(frequency*1000000+225000)/32768; //calculating PLL word
    
39. 
    
40.   frequencyH=frequencyB>>8;
    
41. 
    
42.   frequencyL=frequencyB&0XFF;
    
43. 
    
44.   delay(100);
    
45. 
    
46.   Wire.beginTransmission(0x60);   //writing TEA5767
    
47. 
    
48.   Wire.send(frequencyH);
    
49.   Wire.send(frequencyL);
    
50.   Wire.send(0xB0);
    
51.   Wire.send(0x10);
    
52.   Wire.send(0x00);
    
53.   Wire.endTransmission();
    
54. 
    
55.   delay(100);
    
56. }
    
57. 
    
58. void loop()
    
59. {
    
60. 
    
61.   unsigned char buffer[5];
    
62. 
    
63.   lcd.setCursor(0, 0);
    
64. 
    
65.   Wire.requestFrom(0x60,5); //reading TEA5767
    
66. 
    
67.   if (Wire.available())
    
68. 
    
69.   {
    
70.     for (int i=0; i<5; i++) {
    
71. 
    
72.       buffer[i]= Wire.receive();
    
73.     }
    
74. 
    
75.     freq_available=(((buffer[0]&0x3F)<<8)+buffer[1])*32768/4-225000;
    
76. 
    
77.     lcd.print("FM ");
    
78. 
    
79.     lcd.print((freq_available/1000000));
    
80. 
    
81.     frequencyH=((buffer[0]&0x3F));
    
82. 
    
83.     frequencyL=buffer[1];
    
84. 
    
85.     if (search_mode) {
    
86. 
    
87.       if(buffer[0]&0x80) search_mode=0;
    
88. 
    
89.     }
    
90. 
    
91.     if (search_mode==1) lcd.print(" SCAN");
    
92.     else {
    
93.       lcd.print("       ");
    
94.     }
    
95. 
    
96.     lcd.setCursor(0, 1);
    
97. 
    
98.     lcd.print("Level: ");
    
99.     lcd.print((buffer[3]>>4));
    
100.     lcd.print("/16 ");
     
101. 
     
102.     if (buffer[2]&0x80) lcd.print("STEREO   ");
     
103.     else lcd.print("MONO   ");
     
104. 
     
105.   }
     
106. 
     
107.   ///// buttons read
     
108. 
     
109.   //////////// button_next//////////
     
110.   if (!digitalRead(Button_next)&&!b) {
     
111. 
     
112.     frequency=(freq_available/1000000)+0.05;
     
113. 
     
114.     frequencyB=4*(frequency*1000000+225000)/32768+1;
     
115. 
     
116.     frequencyH=frequencyB>>8;
     
117.     frequencyL=frequencyB&0XFF;   
     
118. 
     
119.     Wire.beginTransmission(0x60);   
     
120. 
     
121.     Wire.send(frequencyH);
     
122.     Wire.send(frequencyL);
     
123.     Wire.send(0xB0);
     
124.     Wire.send(0x1F);
     
125.     Wire.send(0x00);
     
126. 
     
127.     Wire.endTransmission();
     
128. 
     
129.     //////////////////////
     
130. 
     
131.     b=100;
     
132. 
     
133.   };
     
134. 
     
135.   if (!digitalRead(Button_next)&&b==1) {
     
136. 
     
137.     ///scannnn UP
     
138. 
     
139.     search_mode=1;
     
140. 
     
141.     Wire.beginTransmission(0x60);   
     
142. 
     
143.     Wire.send(frequencyH+0x40);
     
144.     Wire.send(frequencyL);
     
145.     Wire.send(0xD0);
     
146.     Wire.send(0x1F);
     
147.     Wire.send(0x00);
     
148. 
     
149.     Wire.endTransmission();
     
150. 
     
151.     /////////////////
     
152. 
     
153.     b=100;
     
154. 
     
155.   };   
     
156. 
     
157.   if (!b==0) b--;
     
158. 
     
159.   //////////// button_prev//////////
     
160.   if (!digitalRead(Button_prev)&&!c) {
     
161. 
     
162.     frequency=(freq_available/1000000)-0.05;
     
163. 
     
164.     frequencyB=4*(frequency*1000000+225000)/32768+1;
     
165. 
     
166.     frequencyH=frequencyB>>8;
     
167.     frequencyL=frequencyB&0XFF;
     
168. 
     
169.     Wire.beginTransmission(0x60);   
     
170. 
     
171.     Wire.send(frequencyH);
     
172.     Wire.send(frequencyL);
     
173.     Wire.send(0xB0);
     
174.     Wire.send(0x1F);
     
175.     Wire.send(0x00);
     
176. 
     
177.     Wire.endTransmission();
     
178. 
     
179.     c=100;
     
180. 
     
181.   };
     
182. 
     
183.   if (!digitalRead(Button_prev)&&c==1) {
     
184. 
     
185.     ///scannnn DOWN
     
186. 
     
187.     search_mode=1;
     
188. 
     
189.     Wire.beginTransmission(0x60);   
     
190. 
     
191.     Wire.send(frequencyH+0x40);
     
192.     Wire.send(frequencyL);
     
193. 
     
194.     Wire.send(0x50);
     
195.     Wire.send(0x1F);
     
196.     Wire.send(0x00);
     
197.     Wire.endTransmission();   
     
198. 
     
199.     c=100;
     
200. 
     
201.   };         
     
202. 
     
203.   if (!c==0) c--;
     
204. 
     
205.   ////////////////////
     
206. 
     
207. }
     

复制代码

Randy

支持，我之前在学校的时候也玩过一个，不错，继续努力！

迷你强

好复杂的接线啊

einyboy

想做了软件无线电设备。