Muaiyd Al-Zandi / Mbed 2 deprecated ass2

Embedded software Assessment 2

Dependencies:   MCP23017 SDFileSystem USBDevice WattBob_TextLCD mbed

Function.h@13:6094b94b3b7c, 2014-02-21 (annotated)

Committer:
muaiyd
Date:
Fri Feb 21 12:32:00 2014 +0000
Revision:
13:6094b94b3b7c
Parent:
12:582753a4f1fb
Child:
14:17be0f2d153f
Finisfed (writing comment)

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 8:16a77a68e4b4 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 8:16a77a68e4b4 11 DigitalIn FrequencyIn(p15);
muaiyd 8:16a77a68e4b4 12 DigitalIn Switch1(p17);
muaiyd 8:16a77a68e4b4 13 DigitalIn Switch2(p18);
muaiyd 7:d9f86e1b8185 14 AnalogIn Analogue_in_1(p19);
muaiyd 7:d9f86e1b8185 15 AnalogIn Analogue_in_2(p20);
muaiyd 7:d9f86e1b8185 16
muaiyd 8:16a77a68e4b4 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 9:539c51b7db52 28 char Temp[4];
muaiyd 12:582753a4f1fb 29 FILE *fp;
muaiyd 12:582753a4f1fb 30
muaiyd 7:d9f86e1b8185 31 Timer FreqMsurT;
muaiyd 7:d9f86e1b8185 32 Timer FreqTimeOut;
muaiyd 9:539c51b7db52 33 Timer LogTimer;
muaiyd 7:d9f86e1b8185 34
muaiyd 7:d9f86e1b8185 35 Ticker CallFreqMsur;
muaiyd 7:d9f86e1b8185 36 Ticker CallReadDigitalin;
muaiyd 7:d9f86e1b8185 37 Ticker CallReadAnalogin;
muaiyd 7:d9f86e1b8185 38 Ticker CallDisplay;
muaiyd 7:d9f86e1b8185 39 Ticker CallInputCheck;
muaiyd 7:d9f86e1b8185 40 Ticker CallBinaryCounter;
muaiyd 7:d9f86e1b8185 41 Ticker CallLogFile;
muaiyd 7:d9f86e1b8185 42
muaiyd 12:582753a4f1fb 43
muaiyd 12:582753a4f1fb 44 void Init_LCD();
muaiyd 12:582753a4f1fb 45 void FreqMsur();
muaiyd 12:582753a4f1fb 46 void ReadDigitalin();
muaiyd 12:582753a4f1fb 47 void ReadAnalogin();
muaiyd 12:582753a4f1fb 48 void Display();
muaiyd 12:582753a4f1fb 49 void InputCheck();
muaiyd 12:582753a4f1fb 50 void BinaryCounter();
muaiyd 12:582753a4f1fb 51 void InitFile();
muaiyd 12:582753a4f1fb 52 void LogFile();
muaiyd 12:582753a4f1fb 53
muaiyd 12:582753a4f1fb 54 /********************************************************************************
muaiyd 12:582753a4f1fb 55 Functions
muaiyd 12:582753a4f1fb 56 ###############################################################################*/
muaiyd 0:86bba6bf9b6f 57 void Write_LCD(const char STR[],int8_t PY,int8_t PX,bool clr){
muaiyd 0:86bba6bf9b6f 58 if(clr)
muaiyd 0:86bba6bf9b6f 59 LCD.cls();
muaiyd 0:86bba6bf9b6f 60 LCD.locate(PY,PX);
muaiyd 0:86bba6bf9b6f 61 LCD.printf(STR);
muaiyd 0:86bba6bf9b6f 62 }
muaiyd 13:6094b94b3b7c 63 /***************************************************************************/
muaiyd 0:86bba6bf9b6f 64 void Init_LCD(){
muaiyd 0:86bba6bf9b6f 65 Port.write_bit(1,BL_BIT);
muaiyd 0:86bba6bf9b6f 66 Write_LCD("Muaiyd",0,4,1);
muaiyd 0:86bba6bf9b6f 67 Write_LCD("Heriot-Watt Uni.",1,0,0);
muaiyd 13:6094b94b3b7c 68 wait(1.5);
muaiyd 13:6094b94b3b7c 69 Write_LCD("F=",0,0,1);
muaiyd 13:6094b94b3b7c 70 Write_LCD("A1=",1,0,0);
muaiyd 13:6094b94b3b7c 71 Write_LCD("A2=",1,7,0);
muaiyd 13:6094b94b3b7c 72 Write_LCD("S1=",0,7,0);
muaiyd 13:6094b94b3b7c 73 Write_LCD("S2=",0,12,0);
muaiyd 13:6094b94b3b7c 74 Write_LCD("E",1,14,0);
muaiyd 13:6094b94b3b7c 75 LogTimer.start();
muaiyd 4:4bb228d1f6c2 76 }
muaiyd 4:4bb228d1f6c2 77
muaiyd 13:6094b94b3b7c 78 /***************************************************************************************
muaiyd 7:d9f86e1b8185 79 Measure the frequency of a 3.3v square wave signal once every second. The frequency range
muaiyd 7:d9f86e1b8185 80 is 500Hz to 1000Hz with 50% duty cycle).
muaiyd 13:6094b94b3b7c 81 *****************************************************************************************/
muaiyd 7:d9f86e1b8185 82
muaiyd 7:d9f86e1b8185 83 void FreqMsur(){
muaiyd 7:d9f86e1b8185 84 FreqTimeOut.start();
muaiyd 7:d9f86e1b8185 85 while(!FrequencyIn){
muaiyd 7:d9f86e1b8185 86 if (FreqTimeOut.read_ms() > 50)
muaiyd 7:d9f86e1b8185 87 break;
muaiyd 7:d9f86e1b8185 88 }
muaiyd 7:d9f86e1b8185 89 while(FrequencyIn){
muaiyd 7:d9f86e1b8185 90 if (FreqTimeOut.read_ms() > 50)
muaiyd 7:d9f86e1b8185 91 break;
muaiyd 7:d9f86e1b8185 92 }
muaiyd 7:d9f86e1b8185 93 if (FreqTimeOut.read_ms() > 50)
muaiyd 7:d9f86e1b8185 94 FreqTimeOutE=0;
muaiyd 7:d9f86e1b8185 95
muaiyd 7:d9f86e1b8185 96 if(FreqTimeOutE){
muaiyd 7:d9f86e1b8185 97 FreqMsurT.start();
muaiyd 7:d9f86e1b8185 98 while(!FrequencyIn){
muaiyd 7:d9f86e1b8185 99 }
muaiyd 7:d9f86e1b8185 100 while(FrequencyIn){
muaiyd 7:d9f86e1b8185 101 }
muaiyd 7:d9f86e1b8185 102 FreqMsurT.stop();
muaiyd 7:d9f86e1b8185 103 float Period=FreqMsurT.read_us();
muaiyd 12:582753a4f1fb 104 Freq=1/Period*1000000.0; //Adding 0.5 to round the frequency to nearst int
muaiyd 7:d9f86e1b8185 105 }
muaiyd 7:d9f86e1b8185 106 else{
muaiyd 7:d9f86e1b8185 107 Freq=0xffff;
muaiyd 7:d9f86e1b8185 108 }
muaiyd 7:d9f86e1b8185 109 FreqMsurT.reset();
muaiyd 7:d9f86e1b8185 110 FreqTimeOut.stop();
muaiyd 7:d9f86e1b8185 111 FreqTimeOut.reset();
muaiyd 7:d9f86e1b8185 112 FreqTimeOutE=1;
muaiyd 7:d9f86e1b8185 113
muaiyd 4:4bb228d1f6c2 114 }
muaiyd 4:4bb228d1f6c2 115
muaiyd 7:d9f86e1b8185 116 //Read TWO digital inputs every 400mS (switch_1 and switch_2)
muaiyd 7:d9f86e1b8185 117 void ReadDigitalin(){
muaiyd 7:d9f86e1b8185 118 Swch1=Switch1;
muaiyd 7:d9f86e1b8185 119 Swch2=Switch2;
muaiyd 4:4bb228d1f6c2 120 }
muaiyd 13:6094b94b3b7c 121 /*******************************************************************
muaiyd 7:d9f86e1b8185 122 Read TWO analogue inputs every 800mS (Analogue_in_1 at pin 19
muaiyd 7:d9f86e1b8185 123 and Analogue_in_2 at pin 20). Also, averaging the last 4 readings
muaiyd 13:6094b94b3b7c 124 ********************************************************************/
muaiyd 7:d9f86e1b8185 125 void ReadAnalogin(){
muaiyd 7:d9f86e1b8185 126 Analug1_valu[4]=0;
muaiyd 7:d9f86e1b8185 127 Analug2_valu[4]=0;
muaiyd 7:d9f86e1b8185 128 for(int i=0;i<3;i++){
muaiyd 7:d9f86e1b8185 129 Analug1_valu[i]=Analug1_valu[i+1];
muaiyd 7:d9f86e1b8185 130 Analug1_valu[4]=Analug1_valu[4]+Analug1_valu[i]/4;
muaiyd 7:d9f86e1b8185 131 Analug2_valu[i]=Analug2_valu[i+1];
muaiyd 7:d9f86e1b8185 132 Analug2_valu[4]=Analug2_valu[4]+Analug2_valu[i]/4;
muaiyd 7:d9f86e1b8185 133 }
muaiyd 7:d9f86e1b8185 134 Analug1_valu[3]=Analogue_in_1.read()*255;
muaiyd 7:d9f86e1b8185 135 Analug2_valu[3]=Analogue_in_2.read()*255;
muaiyd 7:d9f86e1b8185 136 Analug1_valu[4]=Analug1_valu[4]+Analug1_valu[3]/4;
muaiyd 7:d9f86e1b8185 137 Analug2_valu[4]=Analug2_valu[4]+Analug2_valu[3]/4;
muaiyd 7:d9f86e1b8185 138 }
muaiyd 13:6094b94b3b7c 139 /*************************************************************
muaiyd 7:d9f86e1b8185 140 Display the following on the LCD display every 2 seconds
muaiyd 7:d9f86e1b8185 141 a. Frequency value (show as integer)
muaiyd 7:d9f86e1b8185 142 b. analogue values (show as integers)
muaiyd 7:d9f86e1b8185 143 c. digital values
muaiyd 7:d9f86e1b8185 144 d. Possible error code
muaiyd 13:6094b94b3b7c 145 **************************************************************/
muaiyd 13:6094b94b3b7c 146 void Display(){
muaiyd 13:6094b94b3b7c 147 Write_LCD(" ",0,2,0);
muaiyd 7:d9f86e1b8185 148 if( Freq<1200 && Freq>400){
muaiyd 7:d9f86e1b8185 149 sprintf(Temp, "%d", Freq);
muaiyd 13:6094b94b3b7c 150 Write_LCD(Temp,0,2,0);
muaiyd 7:d9f86e1b8185 151 }
muaiyd 7:d9f86e1b8185 152 else{
muaiyd 13:6094b94b3b7c 153 Write_LCD("Err",0,2,0);
muaiyd 7:d9f86e1b8185 154 }
muaiyd 7:d9f86e1b8185 155 sprintf(Temp, "%d", Analug1_valu[4]);
muaiyd 13:6094b94b3b7c 156 Write_LCD(" ",1,3,0);
muaiyd 13:6094b94b3b7c 157 Write_LCD(Temp,1,3,0);
muaiyd 7:d9f86e1b8185 158 sprintf(Temp, "%d", Analug2_valu[4]);
muaiyd 13:6094b94b3b7c 159 Write_LCD(" ",1,10,0);
muaiyd 13:6094b94b3b7c 160 Write_LCD(Temp,1,10,0);
muaiyd 7:d9f86e1b8185 161 sprintf(Temp, "%d", Swch1);
muaiyd 13:6094b94b3b7c 162 Write_LCD(Temp,0,10,0);
muaiyd 7:d9f86e1b8185 163 sprintf(Temp, "%d", Swch2);
muaiyd 13:6094b94b3b7c 164 Write_LCD(Temp,0,15,0);
muaiyd 7:d9f86e1b8185 165 sprintf(Temp, "%d", Error_Code);
muaiyd 13:6094b94b3b7c 166 Write_LCD(Temp,1,15,0);
muaiyd 4:4bb228d1f6c2 167 }
muaiyd 13:6094b94b3b7c 168 //############################################################
muaiyd 7:d9f86e1b8185 169 void InputCheck(){
muaiyd 7:d9f86e1b8185 170 if(Swch1&&(Analug1_valu[4]>Analug2_valu[4])){
muaiyd 7:d9f86e1b8185 171 Error_Code=3;
muaiyd 7:d9f86e1b8185 172 }
muaiyd 7:d9f86e1b8185 173 else{
muaiyd 7:d9f86e1b8185 174 Error_Code=0;
muaiyd 7:d9f86e1b8185 175 }
muaiyd 7:d9f86e1b8185 176 if(Swch2){
muaiyd 7:d9f86e1b8185 177 Ena_job6=1;
muaiyd 7:d9f86e1b8185 178 }
muaiyd 7:d9f86e1b8185 179 else{
muaiyd 7:d9f86e1b8185 180 Ena_job6=0;
muaiyd 7:d9f86e1b8185 181 }
muaiyd 4:4bb228d1f6c2 182 }
muaiyd 4:4bb228d1f6c2 183
muaiyd 7:d9f86e1b8185 184 void BinaryCounter(){
muaiyd 7:d9f86e1b8185 185 if(Ena_job6){
muaiyd 7:d9f86e1b8185 186 BinLed=Bin;
muaiyd 7:d9f86e1b8185 187 Bin++;
muaiyd 7:d9f86e1b8185 188 }
muaiyd 7:d9f86e1b8185 189 else{
muaiyd 7:d9f86e1b8185 190 BinLed=0x00;
muaiyd 7:d9f86e1b8185 191 Bin=0x00;
muaiyd 7:d9f86e1b8185 192 }
muaiyd 4:4bb228d1f6c2 193 }
muaiyd 13:6094b94b3b7c 194 /***************************************************************
muaiyd 13:6094b94b3b7c 195
muaiyd 13:6094b94b3b7c 196 *****************************************************************/
muaiyd 12:582753a4f1fb 197 void InitFile(){
muaiyd 13:6094b94b3b7c 198 fp = fopen( "/sd/LogDir/LogHistory.txt" , "a");
muaiyd 8:16a77a68e4b4 199 if(fp == NULL) {
muaiyd 8:16a77a68e4b4 200 error("Could not open file for write\n");
muaiyd 12:582753a4f1fb 201 }
muaiyd 13:6094b94b3b7c 202 fprintf(fp,"%s","**************************************************************\r\n");
muaiyd 13:6094b94b3b7c 203 fprintf(fp,"%s","Time Freq Sw1 Sw2 An1 An2 ;\r\n");
muaiyd 13:6094b94b3b7c 204 fprintf(fp,"%s","**************************************************************\r\n");
muaiyd 12:582753a4f1fb 205 fclose(fp);
muaiyd 12:582753a4f1fb 206 }
muaiyd 13:6094b94b3b7c 207 /**************************************************************
muaiyd 13:6094b94b3b7c 208
muaiyd 13:6094b94b3b7c 209 ***************************************************************/
muaiyd 12:582753a4f1fb 210 void LogFile(){
muaiyd 12:582753a4f1fb 211 char* Frq;
muaiyd 12:582753a4f1fb 212 fp = fopen("/sd/LogDir/sdtest.txt", "a");
muaiyd 11:0b2801513f93 213 if( Freq<1200 && Freq>400){
muaiyd 11:0b2801513f93 214 sprintf(Temp, "%d", Freq);
muaiyd 11:0b2801513f93 215 Frq = Temp;
muaiyd 11:0b2801513f93 216 }
muaiyd 9:539c51b7db52 217 else
muaiyd 11:0b2801513f93 218 Frq="Err";
muaiyd 11:0b2801513f93 219
muaiyd 11:0b2801513f93 220 fprintf(fp,"%d ,",(LogTimer.read_ms()/1000));
muaiyd 13:6094b94b3b7c 221 fprintf(fp," %s ,",Frq);
muaiyd 13:6094b94b3b7c 222 fprintf(fp," %i ,",Swch1);
muaiyd 13:6094b94b3b7c 223 fprintf(fp," %i ,",Swch2);
muaiyd 13:6094b94b3b7c 224 fprintf(fp," %d%3 ,",Analug1_valu[4]);
muaiyd 13:6094b94b3b7c 225 fprintf(fp," %d%3 ",Analug2_valu[4]);
muaiyd 11:0b2801513f93 226 fprintf(fp," %s","\r\n");
muaiyd 8:16a77a68e4b4 227 fclose(fp);
muaiyd 8:16a77a68e4b4 228 printf("Goodbye World!\n");
muaiyd 0:86bba6bf9b6f 229 }