Steven Kay / Mbed 2 deprecated Embedded_Software_Assignment_2

Example software for a Cyclic Executive

Dependencies:   MCP23017 SDFileSystem WattBob_TextLCD mbed

Tasks.cpp@6:ceda53939eb8, 2016-02-29 (annotated)

Committer:
sk398
Date:
Mon Feb 29 11:20:48 2016 +0000
Revision:
6:ceda53939eb8
Parent:
5:250f51c80ac1
Child:
9:46408a8dea0c
Tasks all written in. Just got to implement the Cyclic Executive OS element

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sk398 4:b85bc0d810e1 1 /* #####################################################################
sk398 4:b85bc0d810e1 2 Tasks.cpp
sk398 4:b85bc0d810e1 3 ---------
sk398 4:b85bc0d810e1 4
sk398 4:b85bc0d810e1 5 Embedded Software - Assignment 2
sk398 4:b85bc0d810e1 6 --------------------------------
sk398 4:b85bc0d810e1 7
sk398 4:b85bc0d810e1 8 Written by: Steven Kay
sk398 4:b85bc0d810e1 9
sk398 4:b85bc0d810e1 10 Date: February 2016
sk398 4:b85bc0d810e1 11
sk398 4:b85bc0d810e1 12 Function: This
sk398 4:b85bc0d810e1 13
sk398 4:b85bc0d810e1 14 Version: 1.0
sk398 4:b85bc0d810e1 15
sk398 4:b85bc0d810e1 16 Version History
sk398 4:b85bc0d810e1 17 ---------------
sk398 4:b85bc0d810e1 18
sk398 4:b85bc0d810e1 19 1.1 rgdfgdfgdfggdfgdg
sk398 4:b85bc0d810e1 20
sk398 4:b85bc0d810e1 21 1.0 gdgddfdddgd
sk398 4:b85bc0d810e1 22
sk398 4:b85bc0d810e1 23 ##################################################################### */
sk398 2:22ebabd78084 24
sk398 1:221d677fe0d3 25 #include "mbed.h"
sk398 1:221d677fe0d3 26 #include "Tasks.h"
sk398 1:221d677fe0d3 27
sk398 1:221d677fe0d3 28 /* ==================================== Task 1 ==================================== */
sk398 1:221d677fe0d3 29 Task1::Task1(PinName squareWaveInPin)
sk398 1:221d677fe0d3 30 {
sk398 4:b85bc0d810e1 31 _squareWaveIn = new InterruptIn(squareWaveInPin);
sk398 1:221d677fe0d3 32 }
sk398 1:221d677fe0d3 33
sk398 4:b85bc0d810e1 34 void Task1::MeasureFrequency()
sk398 4:b85bc0d810e1 35 {
sk398 4:b85bc0d810e1 36 _Task1Timer.start();
sk398 4:b85bc0d810e1 37 _squareWaveIn -> rise(this,&Task1::StopCounter);
sk398 1:221d677fe0d3 38 }
sk398 1:221d677fe0d3 39
sk398 4:b85bc0d810e1 40 void Task1::StopCounter()
sk398 4:b85bc0d810e1 41 {
sk398 4:b85bc0d810e1 42 _Task1Timer.stop();
sk398 4:b85bc0d810e1 43 measuredFrequency = _Task1Timer.read_us();
sk398 4:b85bc0d810e1 44 _Task1Timer.reset();
sk398 4:b85bc0d810e1 45 }
sk398 4:b85bc0d810e1 46
sk398 4:b85bc0d810e1 47 int Task1::ReadFrequency()
sk398 4:b85bc0d810e1 48 {
sk398 4:b85bc0d810e1 49 _squareWaveIn -> rise(this,&Task1::MeasureFrequency);
sk398 4:b85bc0d810e1 50
sk398 4:b85bc0d810e1 51 return measuredFrequency;
sk398 4:b85bc0d810e1 52 }
sk398 1:221d677fe0d3 53
sk398 1:221d677fe0d3 54 /* ==================================== Task 2 ==================================== */
sk398 1:221d677fe0d3 55 Task2::Task2(PinName digitalInCheckPin)
sk398 1:221d677fe0d3 56 {
sk398 3:c611b9bb5770 57 _digitalInCheck = new DigitalIn(digitalInCheckPin);
sk398 1:221d677fe0d3 58 }
sk398 3:c611b9bb5770 59
sk398 3:c611b9bb5770 60 bool Task2::digitalInState()
sk398 3:c611b9bb5770 61 {
sk398 3:c611b9bb5770 62 if(_digitalInCheck -> read())
sk398 3:c611b9bb5770 63 {
sk398 3:c611b9bb5770 64 return TRUE;
sk398 3:c611b9bb5770 65 }
sk398 3:c611b9bb5770 66 else
sk398 3:c611b9bb5770 67 {
sk398 3:c611b9bb5770 68 return FALSE;
sk398 3:c611b9bb5770 69 }
sk398 3:c611b9bb5770 70 }
sk398 3:c611b9bb5770 71
sk398 1:221d677fe0d3 72
sk398 1:221d677fe0d3 73 /* ==================================== Task 3 ==================================== */
sk398 1:221d677fe0d3 74 Task3::Task3(PinName WatchdogPin)
sk398 1:221d677fe0d3 75 {
sk398 1:221d677fe0d3 76 _Watchdog = new DigitalOut(WatchdogPin);
sk398 1:221d677fe0d3 77 }
sk398 1:221d677fe0d3 78
sk398 1:221d677fe0d3 79 void Task3::OutputWatchdogPulse()
sk398 1:221d677fe0d3 80 {
sk398 1:221d677fe0d3 81 _Watchdog -> write(HIGH);
sk398 1:221d677fe0d3 82 wait_ms(WATCHDOG_PULSE_WIDTH);
sk398 1:221d677fe0d3 83 _Watchdog -> write(LOW);
sk398 1:221d677fe0d3 84 }
sk398 1:221d677fe0d3 85
sk398 1:221d677fe0d3 86
sk398 3:c611b9bb5770 87 /* ==================================== Task 4 ==================================== */
sk398 3:c611b9bb5770 88 Task4::Task4(PinName Analog1Pin,PinName Analog2Pin)
sk398 3:c611b9bb5770 89 {
sk398 3:c611b9bb5770 90 _AnalogIn1 = new AnalogIn(Analog1Pin);
sk398 3:c611b9bb5770 91 _AnalogIn2 = new AnalogIn(Analog2Pin);
sk398 3:c611b9bb5770 92 }
sk398 3:c611b9bb5770 93
sk398 3:c611b9bb5770 94 float *Task4::returnAnalogReadings()
sk398 3:c611b9bb5770 95 {
sk398 3:c611b9bb5770 96 float readBuffer_1 = 0.0;
sk398 3:c611b9bb5770 97 float readBuffer_2 = 0.0;
sk398 3:c611b9bb5770 98
sk398 3:c611b9bb5770 99 float outputBuffer[2];
sk398 3:c611b9bb5770 100
sk398 3:c611b9bb5770 101 // outputBuffer[0] = _AnalogIn1 -> read();
sk398 3:c611b9bb5770 102 // outputBuffer[1] = _AnalogIn2 -> read();
sk398 3:c611b9bb5770 103
sk398 3:c611b9bb5770 104 for(int readCount = 0;readCount < NUM_ANALOG_SAMPLES; readCount++)
sk398 3:c611b9bb5770 105 {
sk398 4:b85bc0d810e1 106 readBuffer_1 += ((_AnalogIn1 -> read())*3.3);
sk398 4:b85bc0d810e1 107 // printf("Buffer 1 %f\r\n",readBuffer_1);
sk398 4:b85bc0d810e1 108 readBuffer_2 += ((_AnalogIn2 -> read())*3.3);
sk398 4:b85bc0d810e1 109 // printf("Buffer 2 %f\r\n",readBuffer_2);
sk398 3:c611b9bb5770 110 }
sk398 3:c611b9bb5770 111
sk398 3:c611b9bb5770 112 outputBuffer[0] = readBuffer_1/NUM_ANALOG_SAMPLES;
sk398 4:b85bc0d810e1 113 // printf("outputBuffer[0] %f\r\n",outputBuffer[0]);
sk398 4:b85bc0d810e1 114 outputBuffer[1] = readBuffer_2/NUM_ANALOG_SAMPLES;
sk398 4:b85bc0d810e1 115 // printf("outputBuffer[1] %f\r\n",outputBuffer[1]);
sk398 3:c611b9bb5770 116
sk398 4:b85bc0d810e1 117 float *outputBufferPtr =&outputBuffer[0];
sk398 4:b85bc0d810e1 118
sk398 3:c611b9bb5770 119 return outputBufferPtr;
sk398 3:c611b9bb5770 120 }
sk398 4:b85bc0d810e1 121
sk398 4:b85bc0d810e1 122 /* ==================================== Task 5 ==================================== */
sk398 5:250f51c80ac1 123 Task5::Task5(PinName sda, PinName scl, int address)
sk398 4:b85bc0d810e1 124 {
sk398 5:250f51c80ac1 125 _par_port = new MCP23017(sda,scl,address);
sk398 5:250f51c80ac1 126 _lcd = new WattBob_TextLCD(_par_port);
sk398 5:250f51c80ac1 127 _par_port -> write_bit(1,BL_BIT);
sk398 4:b85bc0d810e1 128 }
sk398 4:b85bc0d810e1 129
sk398 6:ceda53939eb8 130 void Task5::updateDisplay( int task1Param,
sk398 6:ceda53939eb8 131 int task2Param,
sk398 6:ceda53939eb8 132 int errorState,
sk398 6:ceda53939eb8 133 float task4Channel1,
sk398 6:ceda53939eb8 134 float task4Channel2 )
sk398 5:250f51c80ac1 135 {
sk398 5:250f51c80ac1 136 _lcd -> cls();
sk398 5:250f51c80ac1 137 _lcd -> locate(0,0);
sk398 6:ceda53939eb8 138 _lcd -> printf("F-%4dHz S1-%d E%d",task1Param,task2Param,errorState);
sk398 5:250f51c80ac1 139 _lcd -> locate(1,0);
sk398 5:250f51c80ac1 140 _lcd -> printf("C1-%1.2f C2-%1.2f ",task4Channel1,task4Channel2);
sk398 5:250f51c80ac1 141 }
sk398 6:ceda53939eb8 142
sk398 6:ceda53939eb8 143 /* ==================================== Task 6 ==================================== */
sk398 6:ceda53939eb8 144 int Task6::updateErrorCode(int switch_1, float analog1, float analog2)
sk398 6:ceda53939eb8 145 {
sk398 6:ceda53939eb8 146 if(switch_1 == 1 && (analog1 > analog2))
sk398 6:ceda53939eb8 147 return ERROR_CODE_CDTN_MET;
sk398 6:ceda53939eb8 148 else
sk398 6:ceda53939eb8 149 return ERROR_CODE_CDTN_FAIL;
sk398 6:ceda53939eb8 150 }
sk398 6:ceda53939eb8 151
sk398 6:ceda53939eb8 152 /* ==================================== Task 5 ==================================== */
sk398 6:ceda53939eb8 153 Task7::Task7( PinName mosi,
sk398 6:ceda53939eb8 154 PinName miso,
sk398 6:ceda53939eb8 155 PinName sck,
sk398 6:ceda53939eb8 156 PinName cs,
sk398 6:ceda53939eb8 157 const char *SDName,
sk398 6:ceda53939eb8 158 const char *dir )
sk398 6:ceda53939eb8 159 {
sk398 6:ceda53939eb8 160 _sd = new SDFileSystem(mosi,miso,sck,cs, SDName);
sk398 6:ceda53939eb8 161 makeDirectory(dir);
sk398 6:ceda53939eb8 162 }
sk398 6:ceda53939eb8 163
sk398 6:ceda53939eb8 164 void Task7::makeDirectory(const char *dir)
sk398 6:ceda53939eb8 165 {
sk398 6:ceda53939eb8 166 mkdir(dir,0777);
sk398 6:ceda53939eb8 167 }
sk398 6:ceda53939eb8 168
sk398 6:ceda53939eb8 169 int Task7::openFile(const char *dirFile,const char *accessType)
sk398 6:ceda53939eb8 170 {
sk398 6:ceda53939eb8 171 fp = fopen(dirFile,accessType);
sk398 6:ceda53939eb8 172 if(fp == NULL)
sk398 6:ceda53939eb8 173 {
sk398 6:ceda53939eb8 174 return 1;
sk398 6:ceda53939eb8 175 }
sk398 6:ceda53939eb8 176 return 0;
sk398 6:ceda53939eb8 177 }
sk398 6:ceda53939eb8 178
sk398 6:ceda53939eb8 179 void Task7::writeData(const char *dataStream)
sk398 6:ceda53939eb8 180 {
sk398 6:ceda53939eb8 181 fprintf(fp,dataStream);
sk398 6:ceda53939eb8 182 }
sk398 6:ceda53939eb8 183
sk398 6:ceda53939eb8 184 void Task7::closeFile()
sk398 6:ceda53939eb8 185 {
sk398 6:ceda53939eb8 186 fclose(fp);
sk398 6:ceda53939eb8 187 }