Nicholas Outram / Mbed OS satbir2

test

Dependencies:   CheckRTC LPS25H hts221

Fork of ELEC350-extended-referral2 by satbir panesar

main.cpp@34:62aae7d507e2, 2017-04-05 (annotated)

Committer:
FairyMental
Date:
Wed Apr 05 11:00:20 2017 +0000
Revision:
34:62aae7d507e2
Parent:
33:cffe0ae69aa6
Child:
35:af125862c33e
1st push of project files.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Jonathan Austin 0:2757d7abb7d9 1 #include "mbed.h"
martinsimpson 32:260a288be58f 2 #include "rtos.h"
FairyMental 34:62aae7d507e2 3 #include "string.h"
FairyMental 34:62aae7d507e2 4 #include <stdio.h>
FairyMental 34:62aae7d507e2 5 #include <ctype.h>
FairyMental 34:62aae7d507e2 6 #include "hts221.h"
martinsimpson 32:260a288be58f 7 #include "LPS25H.h"
martinsimpson 32:260a288be58f 8
FairyMental 34:62aae7d507e2 9 #define SWITCH1_RELEASE 1
FairyMental 34:62aae7d507e2 10
FairyMental 34:62aae7d507e2 11 void thread1();
FairyMental 34:62aae7d507e2 12
martinsimpson 32:260a288be58f 13 DigitalOut myled(LED1);
martinsimpson 32:260a288be58f 14 I2C i2c2(I2C_SDA, I2C_SCL);
martinsimpson 32:260a288be58f 15 LPS25H barometer(i2c2, LPS25H_V_CHIP_ADDR);
FairyMental 34:62aae7d507e2 16 HTS221 measurer(I2C_SDA, I2C_SCL);
FairyMental 34:62aae7d507e2 17 DigitalIn onBoardSwitch(USER_BUTTON);
FairyMental 34:62aae7d507e2 18
martinsimpson 32:260a288be58f 19
FairyMental 34:62aae7d507e2 20 //Threads
FairyMental 34:62aae7d507e2 21 Thread *t1;
FairyMental 34:62aae7d507e2 22
FairyMental 34:62aae7d507e2 23 //Class type
FairyMental 34:62aae7d507e2 24 class Measure {
FairyMental 34:62aae7d507e2 25 public:
FairyMental 34:62aae7d507e2 26 float temperature;
FairyMental 34:62aae7d507e2 27 float humidity;
FairyMental 34:62aae7d507e2 28 float pressure;
FairyMental 34:62aae7d507e2 29
FairyMental 34:62aae7d507e2 30 //Constructor
FairyMental 34:62aae7d507e2 31 Measure(float f, float h, float p) {
FairyMental 34:62aae7d507e2 32 temperature = f;
FairyMental 34:62aae7d507e2 33 humidity = h;
FairyMental 34:62aae7d507e2 34 pressure = p;
FairyMental 34:62aae7d507e2 35 }
FairyMental 34:62aae7d507e2 36 };
FairyMental 34:62aae7d507e2 37
FairyMental 34:62aae7d507e2 38 //Mail queue
FairyMental 34:62aae7d507e2 39 Mail<Measure, 16> mail_box;
FairyMental 34:62aae7d507e2 40
FairyMental 34:62aae7d507e2 41
FairyMental 34:62aae7d507e2 42 // Call this on precise intervals
FairyMental 34:62aae7d507e2 43 void adcISR() {
FairyMental 34:62aae7d507e2 44
FairyMental 34:62aae7d507e2 45
FairyMental 34:62aae7d507e2 46 //Read sample - make a copy
FairyMental 34:62aae7d507e2 47 float temperature = 0 , humidity = 0,pressure = 0;
FairyMental 34:62aae7d507e2 48
FairyMental 34:62aae7d507e2 49 measurer.ReadTempHumi(&temperature,&humidity);
FairyMental 34:62aae7d507e2 50 barometer.get();
FairyMental 34:62aae7d507e2 51 pressure = barometer.pressure();
FairyMental 34:62aae7d507e2 52
FairyMental 34:62aae7d507e2 53 //Allocate a block from the memory pool
FairyMental 34:62aae7d507e2 54 Measure *measure = mail_box.alloc();
FairyMental 34:62aae7d507e2 55 if (measure == NULL) {
FairyMental 34:62aae7d507e2 56 //Out of memory
FairyMental 34:62aae7d507e2 57 printf("Out of memory\n\r");
FairyMental 34:62aae7d507e2 58 return;
FairyMental 34:62aae7d507e2 59 }
FairyMental 34:62aae7d507e2 60
FairyMental 34:62aae7d507e2 61 //Fill in the data
FairyMental 34:62aae7d507e2 62 measure->temperature = temperature;
FairyMental 34:62aae7d507e2 63 measure->humidity = humidity;
FairyMental 34:62aae7d507e2 64 measure->pressure = pressure;
FairyMental 34:62aae7d507e2 65 // printf("%4.2fC %3.1f%% %6.1f \r\n", measure->temperature, measure->humidity,measure->pressure);
FairyMental 34:62aae7d507e2 66
FairyMental 34:62aae7d507e2 67 //Write to queue
FairyMental 34:62aae7d507e2 68 osStatus stat = mail_box.put(measure); //Note we are sending the "pointer"
martinsimpson 32:260a288be58f 69
FairyMental 34:62aae7d507e2 70 //Check if succesful
FairyMental 34:62aae7d507e2 71 if (stat == osErrorResource) {
FairyMental 34:62aae7d507e2 72 printf("queue->put() Error code: %4Xh, Resource not available\r\n", stat);
FairyMental 34:62aae7d507e2 73 mail_box.free(measure);
FairyMental 34:62aae7d507e2 74 return;
FairyMental 34:62aae7d507e2 75 }
FairyMental 34:62aae7d507e2 76
FairyMental 34:62aae7d507e2 77 }
FairyMental 34:62aae7d507e2 78
FairyMental 34:62aae7d507e2 79 //Normal priority thread (consumer)
FairyMental 34:62aae7d507e2 80 void thread1()
FairyMental 34:62aae7d507e2 81 {
FairyMental 34:62aae7d507e2 82 while (true) {
FairyMental 34:62aae7d507e2 83 //Block on the queue
FairyMental 34:62aae7d507e2 84 osEvent evt = mail_box.get();
FairyMental 34:62aae7d507e2 85
FairyMental 34:62aae7d507e2 86 //Check status
FairyMental 34:62aae7d507e2 87 if (evt.status == osEventMail) {
FairyMental 34:62aae7d507e2 88 Measure *measure = (Measure*)evt.value.p; //This is the pointer (address)
FairyMental 34:62aae7d507e2 89 //Make a copy
FairyMental 34:62aae7d507e2 90 printf("Consumer: %4.2fC | %3.1f%% | %6.1f \r\n", measure->temperature, measure->humidity,measure->pressure);
FairyMental 34:62aae7d507e2 91 Measure msr(measure->temperature, measure->humidity,measure->pressure);
FairyMental 34:62aae7d507e2 92 //We are done with this, so give back the memory to the pool
FairyMental 34:62aae7d507e2 93 mail_box.free(measure);
FairyMental 34:62aae7d507e2 94
FairyMental 34:62aae7d507e2 95 //Echo to the terminal
FairyMental 34:62aae7d507e2 96
FairyMental 34:62aae7d507e2 97 } else {
FairyMental 34:62aae7d507e2 98 printf("ERROR: %x\n\r", evt.status);
FairyMental 34:62aae7d507e2 99 }
FairyMental 34:62aae7d507e2 100
FairyMental 34:62aae7d507e2 101 } //end while
FairyMental 34:62aae7d507e2 102 }
FairyMental 34:62aae7d507e2 103
FairyMental 34:62aae7d507e2 104
FairyMental 34:62aae7d507e2 105 // Main thread
FairyMental 34:62aae7d507e2 106 int main() {
FairyMental 34:62aae7d507e2 107
FairyMental 34:62aae7d507e2 108 measurer.init();
FairyMental 34:62aae7d507e2 109 measurer.calib();
FairyMental 34:62aae7d507e2 110 //Start message
FairyMental 34:62aae7d507e2 111 printf("Welcome\n");
FairyMental 34:62aae7d507e2 112
FairyMental 34:62aae7d507e2 113 //Hook up timer interrupt
FairyMental 34:62aae7d507e2 114 Ticker timer;
FairyMental 34:62aae7d507e2 115 timer.attach(&adcISR, 5);
FairyMental 34:62aae7d507e2 116
FairyMental 34:62aae7d507e2 117 //Threads
FairyMental 34:62aae7d507e2 118 t1 = new Thread();
FairyMental 34:62aae7d507e2 119 t1->start(thread1);
FairyMental 34:62aae7d507e2 120
FairyMental 34:62aae7d507e2 121 printf("Main Thread\n");
FairyMental 34:62aae7d507e2 122 while(1)
martinsimpson 32:260a288be58f 123 {
FairyMental 34:62aae7d507e2 124 Thread::wait(3000);
FairyMental 34:62aae7d507e2 125 float tempCelsius,humi;
FairyMental 34:62aae7d507e2 126 measurer.ReadTempHumi(&tempCelsius, &humi);
FairyMental 34:62aae7d507e2 127 barometer.get();
FairyMental 34:62aae7d507e2 128 printf("Main ThreaD: %4.2fC %3.1f%% %6.1f \r\n", tempCelsius, humi,barometer.pressure());
FairyMental 34:62aae7d507e2 129
martinsimpson 32:260a288be58f 130 }
Jonathan Austin 0:2757d7abb7d9 131 }
FairyMental 34:62aae7d507e2 132