Sangwon Song / Mbed 2 deprecated 2036lab7_template

template

Dependencies:   4DGL-uLCD-SE EthernetInterface NTPClient SDFileSystem mbed-rtos mbed wave_player

Fork of 2036lab7_template by jim hamblen

main.cpp@1:2a0dea19d2ba, 2016-02-01 (annotated)

Committer:
ssong86
Date:
Mon Feb 01 06:41:04 2016 +0000
Revision:
1:2a0dea19d2ba
Parent:
0:df4d7c0a1594 
template

Who changed what in which revision?

UserRevisionLine numberNew contents of line
4180_1 0:df4d7c0a1594 1 #include "mbed.h"
4180_1 0:df4d7c0a1594 2 // Need include below to add the RTOS
4180_1 0:df4d7c0a1594 3 #include "rtos.h"
4180_1 0:df4d7c0a1594 4 //#include "EthernetInterface.h" //needed for Extra Credit
4180_1 0:df4d7c0a1594 5 //#include "NTPClient.h"
4180_1 0:df4d7c0a1594 6 #include "SDFileSystem.h"
4180_1 0:df4d7c0a1594 7 #include "uLCD_4DGL.h"
4180_1 0:df4d7c0a1594 8 #include "TMP36.h"
4180_1 0:df4d7c0a1594 9 #include "wave_player.h"
ssong86 1:2a0dea19d2ba 10 #include "Shiftbrite.h"
4180_1 0:df4d7c0a1594 11 // Setup four builtin leds for use by threads
4180_1 0:df4d7c0a1594 12 DigitalOut led1(LED1);
4180_1 0:df4d7c0a1594 13 DigitalOut led2(LED2);
4180_1 0:df4d7c0a1594 14 DigitalOut led3(LED3);
4180_1 0:df4d7c0a1594 15 DigitalOut led4(LED4);
4180_1 0:df4d7c0a1594 16
ssong86 1:2a0dea19d2ba 17 Shiftbrite myShiftbrite(p9, p10, p11, p12, p13);// ei li di n/c ci
ssong86 1:2a0dea19d2ba 18
4180_1 0:df4d7c0a1594 19 AnalogOut DACout(p18); // used to play sound on speaker
4180_1 0:df4d7c0a1594 20
4180_1 0:df4d7c0a1594 21 //wave player plays a *.wav file to D/A and a PWM
4180_1 0:df4d7c0a1594 22 wave_player waver(&DACout);
4180_1 0:df4d7c0a1594 23
4180_1 0:df4d7c0a1594 24 uLCD_4DGL uLCD(p28,p27,p29); // serial tx, serial rx, reset pin;
4180_1 0:df4d7c0a1594 25
4180_1 0:df4d7c0a1594 26 SDFileSystem sd(p5, p6, p7, p8, "sd"); //SD card setup
ssong86 1:2a0dea19d2ba 27 Mutex myMutex;
4180_1 0:df4d7c0a1594 28
4180_1 0:df4d7c0a1594 29 // Setup function code for three new threads to run.
4180_1 0:df4d7c0a1594 30 // Put in a while loop so that threads run forever.
4180_1 0:df4d7c0a1594 31 // Thread::wait will force at least a "x" millisecond
4180_1 0:df4d7c0a1594 32 // wait before the thread runs again. During this delay
4180_1 0:df4d7c0a1594 33 // the other threads will run
4180_1 0:df4d7c0a1594 34 // DO NOT use wait() with the RTOS!!!!!
4180_1 0:df4d7c0a1594 35 // wait just burns processor time and no other threads run
ssong86 1:2a0dea19d2ba 36 inline float random_number()
ssong86 1:2a0dea19d2ba 37 {
ssong86 1:2a0dea19d2ba 38 return (rand()/(float(RAND_MAX)));
ssong86 1:2a0dea19d2ba 39 }
ssong86 1:2a0dea19d2ba 40
ssong86 1:2a0dea19d2ba 41
4180_1 0:df4d7c0a1594 42 void led2_thread(void const *argument)
4180_1 0:df4d7c0a1594 43 {
4180_1 0:df4d7c0a1594 44 led2 = 1;
ssong86 1:2a0dea19d2ba 45 //myShiftbrite.write(50,50,0);
4180_1 0:df4d7c0a1594 46 while (true) {
4180_1 0:df4d7c0a1594 47 led2 = !led2;
ssong86 1:2a0dea19d2ba 48 myShiftbrite.write(204,255,255);
4180_1 0:df4d7c0a1594 49 Thread::wait(2000);
4180_1 0:df4d7c0a1594 50 }
4180_1 0:df4d7c0a1594 51 }
4180_1 0:df4d7c0a1594 52 void led3_thread(void const *argument)
4180_1 0:df4d7c0a1594 53 {
4180_1 0:df4d7c0a1594 54 led3 = 1;
ssong86 1:2a0dea19d2ba 55 FILE *wave_file;
ssong86 1:2a0dea19d2ba 56 myShiftbrite.write(50,50,0);
4180_1 0:df4d7c0a1594 57 while (true) {
ssong86 1:2a0dea19d2ba 58 led3 = !led3;
ssong86 1:2a0dea19d2ba 59 myMutex.lock();
ssong86 1:2a0dea19d2ba 60 uLCD.printf("\n\n\nHello, wave world!\n");
ssong86 1:2a0dea19d2ba 61 myMutex.unlock();
ssong86 1:2a0dea19d2ba 62
ssong86 1:2a0dea19d2ba 63 wave_file=fopen("/sd/fire.wav","r");
ssong86 1:2a0dea19d2ba 64 waver.play(wave_file);
ssong86 1:2a0dea19d2ba 65 fclose(wave_file);
ssong86 1:2a0dea19d2ba 66 Thread::wait(4000);
4180_1 0:df4d7c0a1594 67 }
4180_1 0:df4d7c0a1594 68 }
4180_1 0:df4d7c0a1594 69 void led4_thread(void const *argument)
4180_1 0:df4d7c0a1594 70 {
4180_1 0:df4d7c0a1594 71 TMP36 myTMP36(p20);
ssong86 1:2a0dea19d2ba 72 float tempC, tempF;
4180_1 0:df4d7c0a1594 73 led4 = 1;
ssong86 1:2a0dea19d2ba 74 myShiftbrite.write(50,50,0);
4180_1 0:df4d7c0a1594 75 while (true) {
4180_1 0:df4d7c0a1594 76 led4 = !led4;
ssong86 1:2a0dea19d2ba 77 tempC = myTMP36.read();
ssong86 1:2a0dea19d2ba 78 tempF = (9.0*tempC)/5.0 + 32.0;
ssong86 1:2a0dea19d2ba 79 myMutex.lock();
ssong86 1:2a0dea19d2ba 80 uLCD.baudrate(3000000); //jack up baud rate to max for fast display
ssong86 1:2a0dea19d2ba 81 //uLCD.text_width(2); //2x size text
ssong86 1:2a0dea19d2ba 82 //uLCD.text_height(2);
ssong86 1:2a0dea19d2ba 83 uLCD.locate(2,4);
ssong86 1:2a0dea19d2ba 84 uLCD.printf("%5.2F F \n\r", tempF);
ssong86 1:2a0dea19d2ba 85 myMutex.unlock();
ssong86 1:2a0dea19d2ba 86 Thread::wait(4000);
ssong86 1:2a0dea19d2ba 87 }
4180_1 0:df4d7c0a1594 88 }
4180_1 0:df4d7c0a1594 89
ssong86 1:2a0dea19d2ba 90
4180_1 0:df4d7c0a1594 91 int main()
4180_1 0:df4d7c0a1594 92 {
4180_1 0:df4d7c0a1594 93 led1 = 1;
4180_1 0:df4d7c0a1594 94 // code to set time in extra credit option goes here
4180_1 0:df4d7c0a1594 95 //
ssong86 1:2a0dea19d2ba 96
ssong86 1:2a0dea19d2ba 97 //uLCD.baudrate(3000000); //jack up baud rate to max for fast display
ssong86 1:2a0dea19d2ba 98 //uLCD.text_width(2); //2x size text
ssong86 1:2a0dea19d2ba 99 //uLCD.text_height(2);
ssong86 1:2a0dea19d2ba 100
4180_1 0:df4d7c0a1594 101 // Create 3 new thread objects thread1, thread2, and thread3
4180_1 0:df4d7c0a1594 102 // The RTOS will immediately start running them
4180_1 0:df4d7c0a1594 103 Thread thread1(led2_thread);
4180_1 0:df4d7c0a1594 104 Thread thread2(led3_thread);
4180_1 0:df4d7c0a1594 105 Thread thread3(led4_thread);
4180_1 0:df4d7c0a1594 106 // Main continues to run and is actually the first thread.
4180_1 0:df4d7c0a1594 107 // So a total of four threads are running now.
4180_1 0:df4d7c0a1594 108 // Each thread blinks an LED, but at a different rate
4180_1 0:df4d7c0a1594 109 // because of the different values used in Thread::wait().
4180_1 0:df4d7c0a1594 110 //
4180_1 0:df4d7c0a1594 111 // Set time in seconds since Jan 1 1970 (Unix style)
4180_1 0:df4d7c0a1594 112 // must set time to start Real Time clock running
4180_1 0:df4d7c0a1594 113 set_time(1286729737);
4180_1 0:df4d7c0a1594 114 char buffer[12];
4180_1 0:df4d7c0a1594 115 time_t seconds;
4180_1 0:df4d7c0a1594 116 while (true) {
4180_1 0:df4d7c0a1594 117 // reads time structure
4180_1 0:df4d7c0a1594 118 seconds = time(NULL);
4180_1 0:df4d7c0a1594 119 // converts time structure to a string
4180_1 0:df4d7c0a1594 120 strftime(buffer, 12, "%T", localtime(&seconds));
4180_1 0:df4d7c0a1594 121 // print time HH:MM:SS
ssong86 1:2a0dea19d2ba 122 myMutex.lock();
ssong86 1:2a0dea19d2ba 123 uLCD.locate(1,2);
4180_1 0:df4d7c0a1594 124 uLCD.printf("%s\n\r", buffer);
ssong86 1:2a0dea19d2ba 125 myMutex.unlock();
ssong86 1:2a0dea19d2ba 126 // led1 = !led1;
ssong86 1:2a0dea19d2ba 127 // Thread::wait(1000);
ssong86 1:2a0dea19d2ba 128
ssong86 1:2a0dea19d2ba 129 while(1)
ssong86 1:2a0dea19d2ba 130 {
ssong86 1:2a0dea19d2ba 131 myShiftbrite.write(random_number()*255,random_number()*255,random_number()*255);
ssong86 1:2a0dea19d2ba 132 wait(0.4);
ssong86 1:2a0dea19d2ba 133 }
4180_1 0:df4d7c0a1594 134 }
4180_1 0:df4d7c0a1594 135 }
ssong86 1:2a0dea19d2ba 136
ssong86 1:2a0dea19d2ba 137
ssong86 1:2a0dea19d2ba 138