Muaiyd Al-Zandi / Mbed 2 deprecated ass2

Embedded software Assessment 2

Dependencies:   MCP23017 SDFileSystem USBDevice WattBob_TextLCD mbed

Function.h@7:d9f86e1b8185, 2014-02-19 (annotated)

Committer:
muaiyd
Date:
Wed Feb 19 17:33:00 2014 +0000
Revision:
7:d9f86e1b8185
Parent:
4:4bb228d1f6c2
Child:
8:16a77a68e4b4
Add SD card

Who changed what in which revision?

UserRevisionLine numberNew contents of line
muaiyd 0:86bba6bf9b6f 1 #include "MCP23017.h"
muaiyd 0:86bba6bf9b6f 2 #include "WattBob_TextLCD.h"
muaiyd 0:86bba6bf9b6f 3 #include "mbed.h"
muaiyd 7:d9f86e1b8185 4 //#include "SDFileSystem.h"
muaiyd 0:86bba6bf9b6f 5
muaiyd 7:d9f86e1b8185 6 MCP23017 Port(p9,p10,0x40) ; // 16-bit parallel I/O object
muaiyd 7:d9f86e1b8185 7 WattBob_TextLCD LCD(&Port); // Varaible to 2*16 chacater LCD object
muaiyd 7:d9f86e1b8185 8
muaiyd 7:d9f86e1b8185 9
muaiyd 7:d9f86e1b8185 10 BusOut BinLed(LED4, LED3, LED2, LED1);
muaiyd 7:d9f86e1b8185 11 DigitalIn FrequencyIn(p5);
muaiyd 7:d9f86e1b8185 12 DigitalIn Switch1(p7);
muaiyd 7:d9f86e1b8185 13 DigitalIn Switch2(p8);
muaiyd 7:d9f86e1b8185 14 AnalogIn Analogue_in_1(p19);
muaiyd 7:d9f86e1b8185 15 AnalogIn Analogue_in_2(p20);
muaiyd 7:d9f86e1b8185 16
muaiyd 7:d9f86e1b8185 17 //SDFileSystem sd(p5, p6, p7, p8, "sd"); // the pinout on the mbed Cool Components workshop board
muaiyd 0:86bba6bf9b6f 18
muaiyd 7:d9f86e1b8185 19 uint8_t Analug1_valu[5]={0,0,0,0,0};
muaiyd 7:d9f86e1b8185 20 uint8_t Analug2_valu[5]={0,0,0,0,0};
muaiyd 7:d9f86e1b8185 21 uint8_t Bin=0x00;
muaiyd 7:d9f86e1b8185 22 bool Swch1;
muaiyd 7:d9f86e1b8185 23 bool Swch2;
muaiyd 7:d9f86e1b8185 24 bool Ena_job6=0;
muaiyd 7:d9f86e1b8185 25 bool FreqTimeOutE=1;
muaiyd 7:d9f86e1b8185 26 uint8_t Error_Code;
muaiyd 7:d9f86e1b8185 27 uint16_t Freq;
muaiyd 1:9a3cfeca7ecd 28
muaiyd 7:d9f86e1b8185 29 Timer FreqMsurT;
muaiyd 7:d9f86e1b8185 30 Timer FreqTimeOut;
muaiyd 7:d9f86e1b8185 31
muaiyd 7:d9f86e1b8185 32 Ticker CallFreqMsur;
muaiyd 7:d9f86e1b8185 33 Ticker CallReadDigitalin;
muaiyd 7:d9f86e1b8185 34 Ticker CallReadAnalogin;
muaiyd 7:d9f86e1b8185 35 Ticker CallDisplay;
muaiyd 7:d9f86e1b8185 36 Ticker CallInputCheck;
muaiyd 7:d9f86e1b8185 37 Ticker CallBinaryCounter;
muaiyd 7:d9f86e1b8185 38 Ticker CallLogFile;
muaiyd 7:d9f86e1b8185 39
muaiyd 0:86bba6bf9b6f 40 void Write_LCD(const char STR[],int8_t PY,int8_t PX,bool clr){
muaiyd 0:86bba6bf9b6f 41 if(clr)
muaiyd 0:86bba6bf9b6f 42 LCD.cls();
muaiyd 0:86bba6bf9b6f 43 LCD.locate(PY,PX);
muaiyd 0:86bba6bf9b6f 44 LCD.printf(STR);
muaiyd 0:86bba6bf9b6f 45 }
muaiyd 0:86bba6bf9b6f 46
muaiyd 0:86bba6bf9b6f 47 void Init_LCD(){
muaiyd 0:86bba6bf9b6f 48 Port.write_bit(1,BL_BIT);
muaiyd 0:86bba6bf9b6f 49 Write_LCD("Muaiyd",0,4,1);
muaiyd 0:86bba6bf9b6f 50 Write_LCD("Heriot-Watt Uni.",1,0,0);
muaiyd 4:4bb228d1f6c2 51 }
muaiyd 4:4bb228d1f6c2 52
muaiyd 7:d9f86e1b8185 53
muaiyd 7:d9f86e1b8185 54 /*
muaiyd 7:d9f86e1b8185 55 Measure the frequency of a 3.3v square wave signal once every second. The frequency range
muaiyd 7:d9f86e1b8185 56 is 500Hz to 1000Hz with 50% duty cycle).
muaiyd 7:d9f86e1b8185 57 */
muaiyd 7:d9f86e1b8185 58
muaiyd 7:d9f86e1b8185 59 void FreqMsur(){
muaiyd 7:d9f86e1b8185 60 FreqTimeOut.start();
muaiyd 7:d9f86e1b8185 61 while(!FrequencyIn){
muaiyd 7:d9f86e1b8185 62 if (FreqTimeOut.read_ms() > 50)
muaiyd 7:d9f86e1b8185 63 break;
muaiyd 7:d9f86e1b8185 64 }
muaiyd 7:d9f86e1b8185 65 while(FrequencyIn){
muaiyd 7:d9f86e1b8185 66 if (FreqTimeOut.read_ms() > 50)
muaiyd 7:d9f86e1b8185 67 break;
muaiyd 7:d9f86e1b8185 68 }
muaiyd 7:d9f86e1b8185 69 if (FreqTimeOut.read_ms() > 50)
muaiyd 7:d9f86e1b8185 70 FreqTimeOutE=0;
muaiyd 7:d9f86e1b8185 71
muaiyd 7:d9f86e1b8185 72 if(FreqTimeOutE){
muaiyd 7:d9f86e1b8185 73 FreqMsurT.start();
muaiyd 7:d9f86e1b8185 74 while(!FrequencyIn){
muaiyd 7:d9f86e1b8185 75 }
muaiyd 7:d9f86e1b8185 76 while(FrequencyIn){
muaiyd 7:d9f86e1b8185 77 }
muaiyd 7:d9f86e1b8185 78 FreqMsurT.stop();
muaiyd 7:d9f86e1b8185 79 float Period=FreqMsurT.read_us();
muaiyd 7:d9f86e1b8185 80 Freq=1/Period*1000000.0+0.5; //Adding 0.5 to round the frequency to nearst int
muaiyd 7:d9f86e1b8185 81 }
muaiyd 7:d9f86e1b8185 82 else{
muaiyd 7:d9f86e1b8185 83 Freq=0xffff;
muaiyd 7:d9f86e1b8185 84 }
muaiyd 7:d9f86e1b8185 85 FreqMsurT.reset();
muaiyd 7:d9f86e1b8185 86 FreqTimeOut.stop();
muaiyd 7:d9f86e1b8185 87 FreqTimeOut.reset();
muaiyd 7:d9f86e1b8185 88 FreqTimeOutE=1;
muaiyd 7:d9f86e1b8185 89
muaiyd 4:4bb228d1f6c2 90 }
muaiyd 4:4bb228d1f6c2 91
muaiyd 7:d9f86e1b8185 92 //Read TWO digital inputs every 400mS (switch_1 and switch_2)
muaiyd 4:4bb228d1f6c2 93
muaiyd 7:d9f86e1b8185 94 void ReadDigitalin(){
muaiyd 7:d9f86e1b8185 95 Swch1=Switch1;
muaiyd 7:d9f86e1b8185 96 Swch2=Switch2;
muaiyd 4:4bb228d1f6c2 97 }
muaiyd 4:4bb228d1f6c2 98
muaiyd 7:d9f86e1b8185 99 /*
muaiyd 7:d9f86e1b8185 100 Read TWO analogue inputs every 800mS (Analogue_in_1 at pin 19
muaiyd 7:d9f86e1b8185 101 and Analogue_in_2 at pin 20). Also, averaging the last 4 readings
muaiyd 7:d9f86e1b8185 102 */
muaiyd 7:d9f86e1b8185 103 void ReadAnalogin(){
muaiyd 7:d9f86e1b8185 104 Analug1_valu[4]=0;
muaiyd 7:d9f86e1b8185 105 Analug2_valu[4]=0;
muaiyd 7:d9f86e1b8185 106 for(int i=0;i<3;i++){
muaiyd 7:d9f86e1b8185 107 Analug1_valu[i]=Analug1_valu[i+1];
muaiyd 7:d9f86e1b8185 108 Analug1_valu[4]=Analug1_valu[4]+Analug1_valu[i]/4;
muaiyd 7:d9f86e1b8185 109 Analug2_valu[i]=Analug2_valu[i+1];
muaiyd 7:d9f86e1b8185 110 Analug2_valu[4]=Analug2_valu[4]+Analug2_valu[i]/4;
muaiyd 7:d9f86e1b8185 111 }
muaiyd 7:d9f86e1b8185 112 Analug1_valu[3]=Analogue_in_1.read()*255;
muaiyd 7:d9f86e1b8185 113 Analug2_valu[3]=Analogue_in_2.read()*255;
muaiyd 7:d9f86e1b8185 114 Analug1_valu[4]=Analug1_valu[4]+Analug1_valu[3]/4;
muaiyd 7:d9f86e1b8185 115 Analug2_valu[4]=Analug2_valu[4]+Analug2_valu[3]/4;
muaiyd 7:d9f86e1b8185 116 }
muaiyd 7:d9f86e1b8185 117 /*
muaiyd 7:d9f86e1b8185 118 Display the following on the LCD display every 2 seconds
muaiyd 7:d9f86e1b8185 119 a. Frequency value (show as integer)
muaiyd 7:d9f86e1b8185 120 b. analogue values (show as integers)
muaiyd 7:d9f86e1b8185 121 c. digital values
muaiyd 7:d9f86e1b8185 122 d. Possible error code
muaiyd 7:d9f86e1b8185 123 */
muaiyd 7:d9f86e1b8185 124 void Display(){
muaiyd 7:d9f86e1b8185 125 char Temp[4];
muaiyd 7:d9f86e1b8185 126 Write_LCD("F",0,0,1);
muaiyd 7:d9f86e1b8185 127 if( Freq<1200 && Freq>400){
muaiyd 7:d9f86e1b8185 128 sprintf(Temp, "%d", Freq);
muaiyd 7:d9f86e1b8185 129 Write_LCD(Temp,0,1,0);
muaiyd 7:d9f86e1b8185 130 }
muaiyd 7:d9f86e1b8185 131 else{
muaiyd 7:d9f86e1b8185 132 Write_LCD("Err",0,1,0);
muaiyd 7:d9f86e1b8185 133 }
muaiyd 7:d9f86e1b8185 134
muaiyd 7:d9f86e1b8185 135 Write_LCD("A",1,0,0);
muaiyd 7:d9f86e1b8185 136 sprintf(Temp, "%d", Analug1_valu[4]);
muaiyd 7:d9f86e1b8185 137 Write_LCD(Temp,1,2,0);
muaiyd 7:d9f86e1b8185 138
muaiyd 7:d9f86e1b8185 139 Write_LCD("A",1,8,0);
muaiyd 7:d9f86e1b8185 140 sprintf(Temp, "%d", Analug2_valu[4]);
muaiyd 7:d9f86e1b8185 141 Write_LCD(Temp,1,9,0);
muaiyd 7:d9f86e1b8185 142
muaiyd 7:d9f86e1b8185 143 Write_LCD("S",0,7,0);
muaiyd 7:d9f86e1b8185 144 sprintf(Temp, "%d", Swch1);
muaiyd 7:d9f86e1b8185 145 Write_LCD(Temp,0,8,0);
muaiyd 7:d9f86e1b8185 146
muaiyd 7:d9f86e1b8185 147 Write_LCD("S",0,10,0);
muaiyd 7:d9f86e1b8185 148 sprintf(Temp, "%d", Swch2);
muaiyd 7:d9f86e1b8185 149 Write_LCD(Temp,0,11,0);
muaiyd 7:d9f86e1b8185 150
muaiyd 7:d9f86e1b8185 151 Write_LCD("E",0,14,0);
muaiyd 7:d9f86e1b8185 152 sprintf(Temp, "%d", Error_Code);
muaiyd 7:d9f86e1b8185 153 Write_LCD(Temp,0,15,0);
muaiyd 4:4bb228d1f6c2 154 }
muaiyd 4:4bb228d1f6c2 155
muaiyd 7:d9f86e1b8185 156 void InputCheck(){
muaiyd 7:d9f86e1b8185 157 if(Swch1&&(Analug1_valu[4]>Analug2_valu[4])){
muaiyd 7:d9f86e1b8185 158 Error_Code=3;
muaiyd 7:d9f86e1b8185 159 }
muaiyd 7:d9f86e1b8185 160 else{
muaiyd 7:d9f86e1b8185 161 Error_Code=0;
muaiyd 7:d9f86e1b8185 162 }
muaiyd 7:d9f86e1b8185 163 if(Swch2){
muaiyd 7:d9f86e1b8185 164 Ena_job6=1;
muaiyd 7:d9f86e1b8185 165 }
muaiyd 7:d9f86e1b8185 166 else{
muaiyd 7:d9f86e1b8185 167 Ena_job6=0;
muaiyd 7:d9f86e1b8185 168 }
muaiyd 4:4bb228d1f6c2 169 }
muaiyd 4:4bb228d1f6c2 170
muaiyd 7:d9f86e1b8185 171 void BinaryCounter(){
muaiyd 7:d9f86e1b8185 172 if(Ena_job6){
muaiyd 7:d9f86e1b8185 173 BinLed=Bin;
muaiyd 7:d9f86e1b8185 174 Bin++;
muaiyd 7:d9f86e1b8185 175 }
muaiyd 7:d9f86e1b8185 176 else{
muaiyd 7:d9f86e1b8185 177 BinLed=0x00;
muaiyd 7:d9f86e1b8185 178 Bin=0x00;
muaiyd 7:d9f86e1b8185 179 }
muaiyd 4:4bb228d1f6c2 180 }
muaiyd 4:4bb228d1f6c2 181
muaiyd 7:d9f86e1b8185 182 void LogFile(){
muaiyd 7:d9f86e1b8185 183
muaiyd 0:86bba6bf9b6f 184 }