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Bluetooth MP3 Player with uLCD, Speaker, and SD card hardware components
Dependencies: 4DGL-uLCD-SE SDFileSystem mbed-rtos mbed
Fork of app-board-RTOS-Threads by
main.cpp@1:1c6a9eaf55b5, 2012-10-16 (annotated)
- Committer:
- dreschpe
- Date:
- Tue Oct 16 17:51:10 2012 +0000
- Revision:
- 1:1c6a9eaf55b5
- Parent:
- 0:f6a57b843f79
- Child:
- 2:a69c8c5f5b03
ver 1
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
dreschpe | 0:f6a57b843f79 | 1 | // example to test the mbed Lab Board lcd |
dreschpe | 1:1c6a9eaf55b5 | 2 | // Pot1 change the contrast |
dreschpe | 1:1c6a9eaf55b5 | 3 | // Pot2 change the speed of the sin wave |
dreschpe | 1:1c6a9eaf55b5 | 4 | |
dreschpe | 0:f6a57b843f79 | 5 | |
dreschpe | 0:f6a57b843f79 | 6 | #include "mbed.h" |
dreschpe | 0:f6a57b843f79 | 7 | #include "rtos.h" |
dreschpe | 0:f6a57b843f79 | 8 | #include "Small_6.h" |
dreschpe | 0:f6a57b843f79 | 9 | #include "Small_7.h" |
dreschpe | 0:f6a57b843f79 | 10 | #include "Arial_9.h" |
dreschpe | 0:f6a57b843f79 | 11 | #include "stdio.h" |
dreschpe | 1:1c6a9eaf55b5 | 12 | #include "C12832_lcd.h" |
dreschpe | 0:f6a57b843f79 | 13 | |
dreschpe | 0:f6a57b843f79 | 14 | Serial pc(USBTX, USBRX); |
dreschpe | 0:f6a57b843f79 | 15 | |
dreschpe | 0:f6a57b843f79 | 16 | |
dreschpe | 0:f6a57b843f79 | 17 | // LCD object |
dreschpe | 0:f6a57b843f79 | 18 | C12832_LCD LCD("LCD"); |
dreschpe | 0:f6a57b843f79 | 19 | |
dreschpe | 1:1c6a9eaf55b5 | 20 | AnalogIn Pot1(p19); |
dreschpe | 1:1c6a9eaf55b5 | 21 | AnalogIn Pot2(p20); |
dreschpe | 0:f6a57b843f79 | 22 | |
dreschpe | 1:1c6a9eaf55b5 | 23 | // defines to make lib thread save |
dreschpe | 1:1c6a9eaf55b5 | 24 | #define _lock lcd_mutex.lock(); |
dreschpe | 1:1c6a9eaf55b5 | 25 | #define _unlock lcd_mutex.unlock(); |
dreschpe | 1:1c6a9eaf55b5 | 26 | Mutex lcd_mutex; |
dreschpe | 0:f6a57b843f79 | 27 | |
dreschpe | 0:f6a57b843f79 | 28 | // print data into first line and wait for 1s |
dreschpe | 0:f6a57b843f79 | 29 | void thread1(void const *args) |
dreschpe | 0:f6a57b843f79 | 30 | { |
dreschpe | 0:f6a57b843f79 | 31 | int i; |
dreschpe | 0:f6a57b843f79 | 32 | while(true) { // thread loop |
dreschpe | 0:f6a57b843f79 | 33 | _lock |
dreschpe | 0:f6a57b843f79 | 34 | LCD.locate(0,0); |
dreschpe | 0:f6a57b843f79 | 35 | LCD.set_font((unsigned char*) Small_6); |
dreschpe | 1:1c6a9eaf55b5 | 36 | printf("Thread1 count: %d",i); |
dreschpe | 0:f6a57b843f79 | 37 | LCD.copy_to_lcd(); |
dreschpe | 0:f6a57b843f79 | 38 | _unlock |
dreschpe | 0:f6a57b843f79 | 39 | i++; |
dreschpe | 0:f6a57b843f79 | 40 | Thread::wait(1000); |
dreschpe | 0:f6a57b843f79 | 41 | } |
dreschpe | 0:f6a57b843f79 | 42 | } |
dreschpe | 0:f6a57b843f79 | 43 | |
dreschpe | 0:f6a57b843f79 | 44 | // print data into third line and wait for 0,5s |
dreschpe | 0:f6a57b843f79 | 45 | void thread2(void const *args) |
dreschpe | 0:f6a57b843f79 | 46 | { |
dreschpe | 1:1c6a9eaf55b5 | 47 | int k; |
dreschpe | 0:f6a57b843f79 | 48 | while(true) { // thread loop |
dreschpe | 0:f6a57b843f79 | 49 | _lock |
dreschpe | 0:f6a57b843f79 | 50 | LCD.locate(0,20); |
dreschpe | 0:f6a57b843f79 | 51 | LCD.set_font((unsigned char*) Arial_9); |
dreschpe | 1:1c6a9eaf55b5 | 52 | printf("Thread 2 count : %d",k); |
dreschpe | 0:f6a57b843f79 | 53 | LCD.copy_to_lcd(); |
dreschpe | 0:f6a57b843f79 | 54 | _unlock |
dreschpe | 1:1c6a9eaf55b5 | 55 | k++; |
dreschpe | 0:f6a57b843f79 | 56 | Thread::wait(500); |
dreschpe | 0:f6a57b843f79 | 57 | } |
dreschpe | 0:f6a57b843f79 | 58 | } |
dreschpe | 0:f6a57b843f79 | 59 | |
dreschpe | 0:f6a57b843f79 | 60 | |
dreschpe | 1:1c6a9eaf55b5 | 61 | void thread4(void const *args) |
dreschpe | 1:1c6a9eaf55b5 | 62 | { |
dreschpe | 1:1c6a9eaf55b5 | 63 | int i,k,v; |
dreschpe | 1:1c6a9eaf55b5 | 64 | double s,a; |
dreschpe | 1:1c6a9eaf55b5 | 65 | k = 1; |
dreschpe | 1:1c6a9eaf55b5 | 66 | _lock |
dreschpe | 1:1c6a9eaf55b5 | 67 | LCD.rect(89,0,127,17,1); |
dreschpe | 1:1c6a9eaf55b5 | 68 | _unlock |
dreschpe | 1:1c6a9eaf55b5 | 69 | while(true) { // thread loop |
dreschpe | 1:1c6a9eaf55b5 | 70 | _lock |
dreschpe | 1:1c6a9eaf55b5 | 71 | v = Pot1.read_u16(); // get value of pot 1 |
dreschpe | 1:1c6a9eaf55b5 | 72 | for (i=90; i<127; i++) { |
dreschpe | 1:1c6a9eaf55b5 | 73 | s = 8 * sin((long double)(i+k) /5); |
dreschpe | 1:1c6a9eaf55b5 | 74 | a = 8 * sin((long double)(i+k-1) /5); |
dreschpe | 1:1c6a9eaf55b5 | 75 | LCD.pixel(i,9 + (int)a ,0); |
dreschpe | 1:1c6a9eaf55b5 | 76 | LCD.pixel(i,9 + (int)s ,1); |
dreschpe | 1:1c6a9eaf55b5 | 77 | } |
dreschpe | 1:1c6a9eaf55b5 | 78 | LCD.copy_to_lcd(); |
dreschpe | 1:1c6a9eaf55b5 | 79 | _unlock |
dreschpe | 1:1c6a9eaf55b5 | 80 | k++; |
dreschpe | 1:1c6a9eaf55b5 | 81 | Thread::wait(v/100); |
dreschpe | 1:1c6a9eaf55b5 | 82 | } |
dreschpe | 1:1c6a9eaf55b5 | 83 | } |
dreschpe | 0:f6a57b843f79 | 84 | |
dreschpe | 0:f6a57b843f79 | 85 | |
dreschpe | 1:1c6a9eaf55b5 | 86 | void thread5(void const *args) |
dreschpe | 1:1c6a9eaf55b5 | 87 | { |
dreschpe | 1:1c6a9eaf55b5 | 88 | int k; |
dreschpe | 1:1c6a9eaf55b5 | 89 | while(true) { // thread loop |
dreschpe | 1:1c6a9eaf55b5 | 90 | k = Pot2.read_u16(); // get the value of poti 2 |
dreschpe | 1:1c6a9eaf55b5 | 91 | k = k >> 10; // we need only 6 bit |
dreschpe | 1:1c6a9eaf55b5 | 92 | _lock |
dreschpe | 1:1c6a9eaf55b5 | 93 | LCD.set_contrast(k); |
dreschpe | 1:1c6a9eaf55b5 | 94 | _unlock |
dreschpe | 1:1c6a9eaf55b5 | 95 | Thread::wait(500); |
dreschpe | 1:1c6a9eaf55b5 | 96 | } |
dreschpe | 1:1c6a9eaf55b5 | 97 | } |
dreschpe | 1:1c6a9eaf55b5 | 98 | |
dreschpe | 0:f6a57b843f79 | 99 | int main() |
dreschpe | 0:f6a57b843f79 | 100 | { |
dreschpe | 0:f6a57b843f79 | 101 | int j; |
dreschpe | 0:f6a57b843f79 | 102 | |
dreschpe | 0:f6a57b843f79 | 103 | LCD.claim(stdout); // send stdout to the LCD display |
dreschpe | 1:1c6a9eaf55b5 | 104 | LCD.cls(); |
dreschpe | 1:1c6a9eaf55b5 | 105 | //start thread1 |
dreschpe | 0:f6a57b843f79 | 106 | Thread t1(thread1); |
dreschpe | 1:1c6a9eaf55b5 | 107 | //start thread2 |
dreschpe | 0:f6a57b843f79 | 108 | Thread t2(thread2); |
dreschpe | 1:1c6a9eaf55b5 | 109 | //start thread4 |
dreschpe | 1:1c6a9eaf55b5 | 110 | Thread t4(thread4); |
dreschpe | 1:1c6a9eaf55b5 | 111 | Thread t5(thread5); |
dreschpe | 0:f6a57b843f79 | 112 | |
dreschpe | 0:f6a57b843f79 | 113 | while(true) { // this is the third thread |
dreschpe | 0:f6a57b843f79 | 114 | _lock |
dreschpe | 1:1c6a9eaf55b5 | 115 | LCD.locate(0,9); |
dreschpe | 0:f6a57b843f79 | 116 | LCD.set_font((unsigned char*) Small_7); |
dreschpe | 1:1c6a9eaf55b5 | 117 | j = LCD.get_contrast(); |
dreschpe | 1:1c6a9eaf55b5 | 118 | printf("contrast : %d",j); |
dreschpe | 0:f6a57b843f79 | 119 | LCD.copy_to_lcd(); |
dreschpe | 0:f6a57b843f79 | 120 | _unlock |
dreschpe | 1:1c6a9eaf55b5 | 121 | Thread::wait(500); |
dreschpe | 0:f6a57b843f79 | 122 | } |
dreschpe | 1:1c6a9eaf55b5 | 123 | |
dreschpe | 0:f6a57b843f79 | 124 | } |