cathal deehy-power / Mbed 2 deprecated Case_Study_rtos_basic

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Dependencies:   C12832 LM75B mbed-rtos mbed

Fork of rtos_basic by mbed official

main.cpp@12:2b54f52b1034, 2015-02-13 (annotated)

Committer:
cathal66
Date:
Fri Feb 13 14:06:33 2015 +0000
Revision:
12:2b54f52b1034
Parent:
8:0f773a5937f0 
Four thread running with commits

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cathal66 12:2b54f52b1034 1 #include "mbed.h" //Include the mbed.h file
cathal66 12:2b54f52b1034 2 #include "rtos.h" //include the RTOS.h file
cathal66 12:2b54f52b1034 3 #include "LM75B.h" //include the LM75B.h file
cathal66 12:2b54f52b1034 4 #include "C12832.h" //include the C12832.h file
cathal66 8:0f773a5937f0 5
cathal66 12:2b54f52b1034 6 C12832 lcd(p5, p7, p6, p8, p11); //Setup the LCD
cathal66 8:0f773a5937f0 7
cathal66 12:2b54f52b1034 8 LM75B sensor(p28,p27); //Setup the Temp Sensor I2C
cathal66 12:2b54f52b1034 9 Serial pc(USBTX,USBRX); //Setup the serial comm
cathal66 8:0f773a5937f0 10
cathal66 12:2b54f52b1034 11 float Temp_Value; //global var for temp
cathal66 8:0f773a5937f0 12
cathal66 12:2b54f52b1034 13 PwmOut spkr(p26); //PWM speaker
cathal66 12:2b54f52b1034 14 PwmOut LED_red(p23); //PWM LED red
cathal66 12:2b54f52b1034 15 PwmOut LED_blue(p25); //PWM LED blue
cathal66 12:2b54f52b1034 16
cathal66 12:2b54f52b1034 17 DigitalOut led1(LED1); //Setup LED1 to the varible name led1
cathal66 12:2b54f52b1034 18 DigitalOut led2(LED2); //Setup LED2 to the varible name led2
cathal66 8:0f773a5937f0 19
cathal66 12:2b54f52b1034 20 Mutex Temp_Mutex; //Setup Mutex
emilmont 1:491820ee784d 21
cathal66 8:0f773a5937f0 22
cathal66 12:2b54f52b1034 23 void Tempature_Senor(void const *args) { //Function or the thread to be called
cathal66 8:0f773a5937f0 24
cathal66 12:2b54f52b1034 25
cathal66 12:2b54f52b1034 26 if (sensor.open()) { //Try to open the LM75B
cathal66 12:2b54f52b1034 27 printf("Device detected!\n"); //printf if device connects
cathal66 8:0f773a5937f0 28
cathal66 8:0f773a5937f0 29 while (1) {
cathal66 12:2b54f52b1034 30 lcd.cls(); //Clears LCD
cathal66 12:2b54f52b1034 31 lcd.locate(0,3); //Locartion on LCD display
cathal66 12:2b54f52b1034 32 Temp_Mutex.lock(); //Mutex Lock sensor
cathal66 12:2b54f52b1034 33 lcd.printf("Temp = %.3f\n", (float)sensor); //Print Temp value on LCD
cathal66 12:2b54f52b1034 34 Temp_Value = (float)sensor; //read sonsor and store in Temp_value
cathal66 12:2b54f52b1034 35 Temp_Mutex.unlock(); //Mutex unlock sensor
cathal66 12:2b54f52b1034 36 Thread::wait(1.0); //Thread wait
cathal66 8:0f773a5937f0 37 }
cathal66 8:0f773a5937f0 38
cathal66 8:0f773a5937f0 39 } else {
cathal66 12:2b54f52b1034 40 error("Device not detected!\n"); //Printf on serial if error
cathal66 12:2b54f52b1034 41 } //End Super loop
cathal66 8:0f773a5937f0 42 }
cathal66 8:0f773a5937f0 43
cathal66 12:2b54f52b1034 44 void Speaker(void const *args) { //Function or the thread to be called
cathal66 12:2b54f52b1034 45 while (true) { //Super loop
cathal66 12:2b54f52b1034 46 spkr.period(1.0/5000); //set period
cathal66 12:2b54f52b1034 47 spkr = 0.25; //set PWM
cathal66 12:2b54f52b1034 48 Thread::wait(800); //Thread wait
cathal66 12:2b54f52b1034 49 spkr.period(1.0/3000); //set period
cathal66 12:2b54f52b1034 50 spkr = 0.25; //set PWM
cathal66 12:2b54f52b1034 51 Thread::wait(800); //Thread wait
cathal66 12:2b54f52b1034 52 } //End Super loop
cathal66 8:0f773a5937f0 53 }
cathal66 8:0f773a5937f0 54
cathal66 12:2b54f52b1034 55 void led_R_B_flash(void const *args) { //Function or the thread to be called
cathal66 12:2b54f52b1034 56 while (true) { //Super loop
cathal66 8:0f773a5937f0 57
cathal66 12:2b54f52b1034 58 LED_red = 0.5; //PWM LED to half brightness
cathal66 12:2b54f52b1034 59 LED_blue = 1; //Turn blue LED off
cathal66 8:0f773a5937f0 60 Thread::wait(800);
cathal66 12:2b54f52b1034 61 LED_red = 1; //Turn red LED off
cathal66 12:2b54f52b1034 62 LED_blue = 0.5; //PWM LED to half brightness
cathal66 12:2b54f52b1034 63 Thread::wait(800); //Thread wait
cathal66 12:2b54f52b1034 64 } //End Super loop
cathal66 12:2b54f52b1034 65 } //End Function / thread
emilmont 1:491820ee784d 66
cathal66 12:2b54f52b1034 67 int main() { //Main
cathal66 12:2b54f52b1034 68 float local_Temp_V=0; //SETup local var
cathal66 12:2b54f52b1034 69 Thread thread_Temp(Tempature_Senor); //start thread
cathal66 12:2b54f52b1034 70 Thread thread_LED_Flash(led_R_B_flash); //start thread
cathal66 12:2b54f52b1034 71 Thread thread_Speaker_Sound(Speaker); //start thread
emilmont 1:491820ee784d 72
cathal66 8:0f773a5937f0 73 while (1) {
cathal66 12:2b54f52b1034 74 Temp_Mutex.lock(); //Mutex lock temp value
cathal66 12:2b54f52b1034 75 local_Temp_V = Temp_Value; //store temp value in local variable
cathal66 12:2b54f52b1034 76 Temp_Mutex.unlock(); //mutex unlock
cathal66 12:2b54f52b1034 77 printf("Temp = %.3f\n", local_Temp_V ); //printf on serial of local temp value
cathal66 12:2b54f52b1034 78 Thread::wait(1.0); //thread wait
cathal66 8:0f773a5937f0 79 }
cathal66 8:0f773a5937f0 80
cathal66 8:0f773a5937f0 81
cathal66 7:10edddb7f1a8 82 } //End main