Plymouth ELEC351 Group T
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ELEC351_Group_T
FINAL PROJECT isn't it
Fork of ELEC351 by
main.cpp
- Committer:
- thomasmorris
- Date:
- 2017-12-20
- Revision:
- 12:536eca338ae8
- Parent:
- 11:e7b5ed6cd3cf
- Child:
- 13:db857b3744c6
File content as of revision 12:536eca338ae8:
/* ELEC 351 Group T Team Members : Christopher Hills, Thomas Morris Current Verision 3 Overiew: Working Tasks 1,5,7 Last Revision: Added Mail Box to serial Todo: make a mailbox within SD card, LCD, network so they can be used from within Fix the network so it uses the mail box data. Place the LCD write functions in their own function */ //Includes and Definitions #include "sample_hardware.hpp" #include "Networkbits.hpp" #include "rtos.h" #include "LED.hpp" #include "DATA.hpp" #include "NETWORK.hpp" #define SamplingTime 1 #define NotSamplingTime 0 #define Print_Time_to_LCD 1 #define Dont_Print_Time_to_LCD 0 #define TimerInterval 15 //This is in seconds #define EDGE_RISEN 1 #define EDGE_FALLEN 0 Serial pc(USBTX, USBRX); //SW1+SW2 are declared as interrupt ins in sample hardwarec.pp //Thread IDs osThreadId idMain; osThreadId id1; osThreadId id2; osThreadId id3; osThreadId id4; Timeout sw1TimeOut;//Used to prevent switch bounce LED Red_led(PE_15); LED Yellow_led(PB_10); LED Green_led(PB_11); //Tickers Ticker Sample_timer; //Threads Thread t1; Thread t2; Thread t3; Thread t4; Thread t5; Thread t6; double temp = 0; double pressure = 0; double lux = 0; string buffer_time = 0; char buffer[32]; void SW1FallingEdge(); void SW1TimeOutHandler(); int mode = 0; Mail<DATA, 120> mail_box; //Mail Queue, Type DATA, Capacity 120, name mail_box void Network() { NETWORK_Print();//Runs the network //Send DATA to the network }//Interrupt service routine for handling the timeout void SW1TimeOutHandler() { sw1TimeOut.detach(); //Stop the timeout counter firing SW1.fall(&SW1FallingEdge); //Now wait for a falling edge } void SDWrite()//End of skype chat { } //Interrupt service routive for SW1 falling edge (release) void SW1FallingEdge() { SW1.fall(NULL); //Disable this interrupt Yellow_led.Toggle(); //Toggle LED mode = mode +1;//Cycles through modes if(mode >1) { mode = 0; } sw1TimeOut.attach(&SW1TimeOutHandler, 0.2); //Start timeout counter } void ModeSelection() { while(1){ Thread::wait(1000); //Detech the not required interrupt then rettach it when finshed if(mode == 0)//Print values to the LCD { //Write new data to LCD (not fast!) lcd.cls(); lcd.printf("Temp Pres li\n"); lcd.printf("%1.1f ",temp); lcd.printf("%1.1f ",pressure); lcd.printf("%1.1f\n",lux); } else if(mode == 1)//Print the Time to the LCD { //Write new data to LCD (not fast!) lcd.cls(); lcd.printf("Current Time:%s", buffer); //Write to SD (potentially slow) //fprintf(fp, "%6.1f,%.2f\n\r", temp, pressure); } else { mode = 0; } } } void PrintTime() { Thread::signal_wait(Print_Time_to_LCD); while(1) { //lcd.printf("Current Time: \n %s", buffer); Thread::wait(1000);//Waits the thread for 1 second } } void Time() { while (true) { time_t seconds = time(NULL); //pc.printf("Time as seconds since January 1, 1970 = %d\n", seconds); //pc.printf("Time as a basic string = %s", ctime(&seconds)); strftime(buffer, 32, "%I:%M %p\n", localtime(&seconds)); pc.printf("Current Time:%s", buffer); Thread::wait(1000); } } void Serial_Comms()//Thread for Serial Communications { pc.printf("Hello World \n"); while(1) { osEvent evt = mail_box.get(); //Get the latest entry from "mail_box" if (evt.status == osEventMail) { DATA *Rec_Data = (DATA*)evt.value.p; DATA msg; msg.set_time(Rec_Data->get_time()); msg.set_temperature(Rec_Data->get_temperature()); msg.set_pressure(Rec_Data->get_pressure()); msg.set_light(Rec_Data->get_light()); pc.printf("Time = %d\t", msg.get_time()); //Print Time pc.printf("Temperature = %f", msg.get_temperature()); //Print Temperature pc.printf("Pressure = %f", msg.get_pressure()); //Print Pressure pc.printf("Light = %f", msg.get_light()); //Print Light } pc.printf("Test\n");//Use this Line to output a string to Putty Green_led.Toggle(); Thread::wait(1000); } } void Sample_signal_set() //Sets the Signal for when to sample the sensors { t1.signal_set(SamplingTime); //Set the sampling thread signal high } void Sample()//Samples the hardware and prints the result to the LCD { while(1) { Thread::signal_wait(SamplingTime); //Set the time between samples temp = sensor.getTemperature(); //Read Temperature pressure = sensor.getPressure(); //Read Pressure lux = adcIn.read(); //Read Light buffer_time = buffer; //Read Time DATA *Send_Data = mail_box.alloc(); //Allocate a block from the memory pool, Type Data if (Send_Data == NULL){ //If Data is empty //pc.printf("Out of memory\n\r"); //Print out of memory warning return; } Send_Data->set_time(buffer_time); //Pass in Time Send_Data->set_temperature(temp); //Pass in Temp Send_Data->set_pressure(pressure); //Pass in Pres Send_Data->set_light(lux); //Pass in Light osStatus stat = mail_box.put(Send_Data); //Puts "Send_Data" into the mailbox if (stat == osErrorResource){ //If mailbox overfills //pc.printf("queue->put() Error code: %4Xh, Resource not available\r\n", stat); //Print error message mail_box.free(Send_Data); //Free the mail box return; } Red_led.Toggle(); t1.signal_set(NotSamplingTime); } } int main() { //Greeting printf("Testing\n\n"); set_time(1512940530); //Set RTC time to December 10 2017 pc.baud(9600); //Sets the Serial Comms Baud Rate post(); //Power on Self Test //Initialise the SD card (this needs to move) if ( sd.init() != 0) { printf("Init failed \n"); lcd.cls(); lcd.printf("CANNOT INIT SD"); errorCode(FATAL); } //Create a filing system for SD Card FATFileSystem fs("sd", &sd); //Open to WRITE FILE* fp = fopen("/sd/test.csv","a"); if (fp == NULL) { error("Could not open file for write\n"); lcd.cls(); lcd.printf("CANNOT OPEN FILE\n\n"); errorCode(FATAL); } //Last message before sampling begins lcd.cls(); lcd.printf("READY\n\n"); //Run interrupt Sample_timer.attach(&Sample_signal_set,TimerInterval); SW1.fall(&SW1FallingEdge); //Run Threads t1.start(Sample); t2.start(Serial_Comms); t3.start(Time); t4.start(PrintTime); t5.start(ModeSelection); t6.start(Network); //Main thread ID idMain = osThreadGetId(); //CMSIS RTOS call //Thread ID id1 = t1.gettid(); id2 = t2.gettid(); id3 = t3.gettid(); id4 = t4.gettid(); //id5 = t5.gettid(); //Toggle Green LED after a button has been pressed //Press either switch to unmount DigitalIn onBoardSwitch(USER_BUTTON); while (onBoardSwitch == 0){ } //Close File fclose(fp); //Close down sd.deinit(); printf("Unmounted...\n"); lcd.cls(); lcd.printf("Unmounted...\n\n"); while(true) { greenLED = 1; wait(0.5); greenLED = 0; wait(0.1); } }