Edward Lye / Mbed 2 deprecated ass2

create and send the file to pc

Dependencies:   MCP23017 WattBob_TextLCD mbed

Fork of HelloWorld by Simon Ford

main.cpp@6:94ee12962e13, 2014-03-03 (annotated)

Committer:
haseo1989
Date:
Mon Mar 03 10:33:15 2014 +0000
Revision:
6:94ee12962e13
Parent:
5:27b1b41b2366
Child:
7:0c36c40f2ffd
working for cyclic executive

Who changed what in which revision?

UserRevisionLine numberNew contents of line
haseo1989 6:94ee12962e13 1 #include "mbed.h"
haseo1989 6:94ee12962e13 2 #include "MCP23017.h" // include 16-bit parallel I/O header file
haseo1989 6:94ee12962e13 3 #include "WattBob_TextLCD.h" // include 2*16 character display header file
haseo1989 6:94ee12962e13 4
haseo1989 6:94ee12962e13 5 #define BACK_LIGHT_ON(INTERFACE) INTERFACE->write_bit(1,BL_BIT)
haseo1989 6:94ee12962e13 6 #define BACK_LIGHT_OFF(INTERFACE) INTERFACE->write_bit(0,BL_BIT)
simon 0:fb6bbc10ffa0 7
haseo1989 6:94ee12962e13 8 DigitalIn IP_wave(p5); //input of the square wave,1s
haseo1989 6:94ee12962e13 9 DigitalIn DIP_SW1(p6); //digital input ,switch1,400ms
haseo1989 6:94ee12962e13 10 DigitalIn DIP_SW2(p7); //switch2,400ms
haseo1989 6:94ee12962e13 11 AnalogIn AIP_1(p19); //Analog input1800ms
haseo1989 6:94ee12962e13 12 AnalogIn AIP_2(p20); //AIP 2800ms
haseo1989 3:6cc06b58870b 13
haseo1989 6:94ee12962e13 14 DigitalOut bit4(LED1); //each bits of led
haseo1989 4:b5b159adc261 15 DigitalOut bit3(LED2);
haseo1989 4:b5b159adc261 16 DigitalOut bit2(LED3);
haseo1989 4:b5b159adc261 17 DigitalOut bit1(LED4);
haseo1989 3:6cc06b58870b 18
haseo1989 6:94ee12962e13 19 int S_wave,switch1,switch2 = 0; //check the value of square wave, switches
haseo1989 6:94ee12962e13 20 float Anal_val1[4],Anal_val2[4] = {0,0,0,0}; //for calculating the values of analog inputs
haseo1989 3:6cc06b58870b 21
haseo1989 6:94ee12962e13 22 int freq = 0; // frequency of the wave
haseo1989 6:94ee12962e13 23 float aver_anl1,aver_anl2 = 0; //average values of analog inputs
haseo1989 6:94ee12962e13 24 int ero_code = 0; // error code
haseo1989 6:94ee12962e13 25 int flag_task3 = 0; //flag for task3
haseo1989 6:94ee12962e13 26
haseo1989 6:94ee12962e13 27 int run_task = 0; //if run_task = 1,running led
haseo1989 6:94ee12962e13 28 int led_show = 0; //led blinksing in incremental ways
haseo1989 3:6cc06b58870b 29
haseo1989 6:94ee12962e13 30 MCP23017 *par_port; // pointer to 16-bit parallel I/O object
haseo1989 6:94ee12962e13 31 WattBob_TextLCD *lcd; // pointer to 2*16 chacater LCD object
haseo1989 6:94ee12962e13 32 Timer tmr; //define a timer for calculating the frequency
haseo1989 6:94ee12962e13 33
haseo1989 6:94ee12962e13 34 LocalFileSystem local("local"); //Create the local filesystem under the name "local"
haseo1989 6:94ee12962e13 35 FILE *fp; //define a file
simon 0:fb6bbc10ffa0 36
haseo1989 6:94ee12962e13 37 void iniLCD() //initial LCD
haseo1989 6:94ee12962e13 38 {
haseo1989 6:94ee12962e13 39 par_port = new MCP23017(p9, p10, 0x40); // initialise 16-bit I/O chip
haseo1989 6:94ee12962e13 40 lcd = new WattBob_TextLCD(par_port); // initialise 2*26 char display
haseo1989 6:94ee12962e13 41 par_port->write_bit(1,BL_BIT); // turn LCD backlight ON
haseo1989 6:94ee12962e13 42 lcd->cls();
haseo1989 6:94ee12962e13 43 lcd->locate(0,0);
haseo1989 3:6cc06b58870b 44 }
haseo1989 3:6cc06b58870b 45
haseo1989 6:94ee12962e13 46 void iniFile() //create file
haseo1989 6:94ee12962e13 47 {
haseo1989 6:94ee12962e13 48 fp = fopen("/local/data.txt", "w"); // Open "data.txt" on the local file system for writing
haseo1989 6:94ee12962e13 49 fprintf(fp,"freqency, Digital value, Analog value1, Analog value2\n");
haseo1989 6:94ee12962e13 50 fclose(fp);
haseo1989 6:94ee12962e13 51 }
haseo1989 5:27b1b41b2366 52
haseo1989 6:94ee12962e13 53 void T1_checkWave() //get the frequency of the wave,works
haseo1989 3:6cc06b58870b 54 {
haseo1989 6:94ee12962e13 55 float tm_val1,tm_val2 = 0;
haseo1989 6:94ee12962e13 56 int flag,flag_err = 0;
haseo1989 5:27b1b41b2366 57
haseo1989 6:94ee12962e13 58 Timer Tcheck; //define a timer for calculating the frequency
haseo1989 6:94ee12962e13 59
haseo1989 6:94ee12962e13 60 Tcheck.reset(); //to check wether the testing is over time or not
haseo1989 6:94ee12962e13 61 Tcheck.start();
haseo1989 6:94ee12962e13 62
haseo1989 6:94ee12962e13 63 tmr.reset();
haseo1989 6:94ee12962e13 64
haseo1989 6:94ee12962e13 65 while(IP_wave)
haseo1989 6:94ee12962e13 66 {
haseo1989 6:94ee12962e13 67 tm_val2 = Tcheck.read();
haseo1989 6:94ee12962e13 68 flag = tm_val2*1000;
haseo1989 6:94ee12962e13 69
haseo1989 6:94ee12962e13 70 if(flag >= 20) //if the signal keeps hi in 20ms , it will end testing. the flag_err will be set one
haseo1989 6:94ee12962e13 71 {
haseo1989 6:94ee12962e13 72 flag_err = 1;
haseo1989 6:94ee12962e13 73 break;
haseo1989 6:94ee12962e13 74 }
haseo1989 6:94ee12962e13 75 }
haseo1989 3:6cc06b58870b 76
haseo1989 6:94ee12962e13 77 while( !IP_wave )
haseo1989 6:94ee12962e13 78 {
haseo1989 6:94ee12962e13 79 tm_val2 = Tcheck.read();
haseo1989 6:94ee12962e13 80 flag = tm_val2*1000;
haseo1989 6:94ee12962e13 81 if((flag >= 40) || flag_err == 1) //if the signal keeps low in 50ms , it will end testing.
haseo1989 6:94ee12962e13 82 flag_err = 1;
haseo1989 6:94ee12962e13 83 break;
haseo1989 6:94ee12962e13 84 }
haseo1989 6:94ee12962e13 85 Tcheck.stop();
haseo1989 6:94ee12962e13 86 Tcheck.reset();
haseo1989 5:27b1b41b2366 87
haseo1989 5:27b1b41b2366 88 tmr.start();
haseo1989 6:94ee12962e13 89 while(IP_wave)
haseo1989 6:94ee12962e13 90 {
haseo1989 6:94ee12962e13 91
haseo1989 6:94ee12962e13 92 }
haseo1989 5:27b1b41b2366 93 tmr.stop();
haseo1989 5:27b1b41b2366 94
haseo1989 5:27b1b41b2366 95 tm_val1 = tmr.read_us();
haseo1989 6:94ee12962e13 96 if( (tm_val1 > 500.0) && (flag_err == 0) ) //if impulse last more than 500us, it will get its frequency
haseo1989 6:94ee12962e13 97 freq = 500000/tm_val1; //the frenquency of the wave
haseo1989 6:94ee12962e13 98 else
haseo1989 5:27b1b41b2366 99 freq = 0;
haseo1989 6:94ee12962e13 100
haseo1989 5:27b1b41b2366 101 }
haseo1989 5:27b1b41b2366 102
haseo1989 6:94ee12962e13 103 void T2_checkSW() //check the SWes per 400ms,works
haseo1989 3:6cc06b58870b 104 {
haseo1989 6:94ee12962e13 105 if( DIP_SW1 != 0 )
haseo1989 6:94ee12962e13 106 switch1 = 1;
haseo1989 6:94ee12962e13 107 else switch1 = 0;
haseo1989 3:6cc06b58870b 108
haseo1989 6:94ee12962e13 109 if( DIP_SW2 !=0 )
haseo1989 6:94ee12962e13 110 switch2 = 1;
haseo1989 6:94ee12962e13 111 else switch2 = 0;
haseo1989 3:6cc06b58870b 112
haseo1989 3:6cc06b58870b 113 }
haseo1989 3:6cc06b58870b 114
haseo1989 6:94ee12962e13 115 void T3_checkAIP() //get the values of analog inputs per 800MS
haseo1989 3:6cc06b58870b 116 {
haseo1989 5:27b1b41b2366 117 float para1,para2;
haseo1989 6:94ee12962e13 118 Anal_val1[flag_task3] = AIP_1.read();
haseo1989 6:94ee12962e13 119 Anal_val2[flag_task3] = AIP_2.read();
haseo1989 3:6cc06b58870b 120
haseo1989 6:94ee12962e13 121 flag_task3++;
haseo1989 6:94ee12962e13 122 flag_task3 = flag_task3%4;
haseo1989 3:6cc06b58870b 123
haseo1989 6:94ee12962e13 124 para1 = (Anal_val1[0] + Anal_val1[1] + Anal_val1[2] + Anal_val1[3])*3.3; //filt the values
haseo1989 6:94ee12962e13 125 para2 = (Anal_val2[0] + Anal_val2[1] + Anal_val2[2] + Anal_val2[3])*3.3;
haseo1989 5:27b1b41b2366 126 aver_anl1 = para1/4;
haseo1989 5:27b1b41b2366 127 aver_anl2 = para2/4;
haseo1989 6:94ee12962e13 128 }
haseo1989 3:6cc06b58870b 129
haseo1989 6:94ee12962e13 130 void T4_display() //dispaly each values per 2s
haseo1989 5:27b1b41b2366 131 {
haseo1989 6:94ee12962e13 132 int aver_show;
haseo1989 5:27b1b41b2366 133 /* get frequency from task 1 */
haseo1989 5:27b1b41b2366 134 // frequency is freq
haseo1989 5:27b1b41b2366 135
haseo1989 5:27b1b41b2366 136
haseo1989 5:27b1b41b2366 137 /* get digital value from task2 */
haseo1989 6:94ee12962e13 138 /* digital number = {switch1,switch2}
haseo1989 5:27b1b41b2366 139
haseo1989 3:6cc06b58870b 140
haseo1989 5:27b1b41b2366 141 */
haseo1989 5:27b1b41b2366 142 /* get average value from task3,show integers */
haseo1989 5:27b1b41b2366 143 //data type of aver_anl1,aver_anl2 are float
haseo1989 5:27b1b41b2366 144
haseo1989 6:94ee12962e13 145
haseo1989 6:94ee12962e13 146 aver_show = (aver_anl1+aver_anl2)/2;
haseo1989 5:27b1b41b2366 147
haseo1989 5:27b1b41b2366 148 /* get error code from task5 */
haseo1989 6:94ee12962e13 149 // ero_code
haseo1989 6:94ee12962e13 150
haseo1989 6:94ee12962e13 151
haseo1989 5:27b1b41b2366 152 /* show them!! */
haseo1989 5:27b1b41b2366 153
haseo1989 5:27b1b41b2366 154 lcd->cls();
haseo1989 5:27b1b41b2366 155 lcd->locate(0,0);
haseo1989 6:94ee12962e13 156 lcd->printf("F=%d Aval=%d",freq,aver_show);
haseo1989 5:27b1b41b2366 157 lcd->locate(1,0);
haseo1989 6:94ee12962e13 158 lcd->printf("Dval=%d%d ErC=%d",switch2,switch1,ero_code);
haseo1989 3:6cc06b58870b 159
haseo1989 3:6cc06b58870b 160 }
haseo1989 3:6cc06b58870b 161
haseo1989 5:27b1b41b2366 162
haseo1989 6:94ee12962e13 163 void T5_SWtask() //check the values of switches and run the task , set error code per 1.8s
haseo1989 3:6cc06b58870b 164 {
haseo1989 6:94ee12962e13 165 if((switch1 == 1) && (aver_anl1 > aver_anl2)) ero_code = 3;
haseo1989 3:6cc06b58870b 166 else ero_code = 0; //error code
haseo1989 3:6cc06b58870b 167
haseo1989 6:94ee12962e13 168 if(switch2 == 1)
haseo1989 3:6cc06b58870b 169 run_task = 1;
haseo1989 3:6cc06b58870b 170 else
haseo1989 3:6cc06b58870b 171 run_task = 0;
haseo1989 3:6cc06b58870b 172
haseo1989 3:6cc06b58870b 173 }
haseo1989 3:6cc06b58870b 174
haseo1989 6:94ee12962e13 175 void RunLed() //blink led 1.5s
haseo1989 3:6cc06b58870b 176 {
haseo1989 6:94ee12962e13 177 led_show = led_show%16;
haseo1989 3:6cc06b58870b 178 int num_led = led_show;
haseo1989 3:6cc06b58870b 179
haseo1989 5:27b1b41b2366 180 if(num_led > 7) {num_led = num_led - 8; bit4 = 1; }
haseo1989 3:6cc06b58870b 181 else bit4 = 0;
haseo1989 3:6cc06b58870b 182
haseo1989 5:27b1b41b2366 183 if(num_led > 3) {num_led = num_led - 4; bit3 = 1;}
haseo1989 3:6cc06b58870b 184 else bit3 = 0;
haseo1989 3:6cc06b58870b 185
haseo1989 5:27b1b41b2366 186 if(num_led > 1) {num_led = num_led - 2; bit2 = 1;}
haseo1989 3:6cc06b58870b 187 else bit2 = 0;
haseo1989 3:6cc06b58870b 188
haseo1989 6:94ee12962e13 189 bit1 = num_led;
haseo1989 3:6cc06b58870b 190 led_show++;
haseo1989 3:6cc06b58870b 191 }
haseo1989 6:94ee12962e13 192
haseo1989 6:94ee12962e13 193 void T6_saveData() //save data in uSD;
haseo1989 6:94ee12962e13 194 {
haseo1989 6:94ee12962e13 195 fp = fopen("/local/data.txt", "a"); //open file and add data into the file
haseo1989 6:94ee12962e13 196 fprintf(fp,"%d, _%d%d, %f, %f\n",freq,switch2,switch1,aver_anl1,aver_anl2);
haseo1989 6:94ee12962e13 197 fclose(fp); //close file
haseo1989 6:94ee12962e13 198
haseo1989 6:94ee12962e13 199 }
haseo1989 3:6cc06b58870b 200
haseo1989 6:94ee12962e13 201 int main()
haseo1989 6:94ee12962e13 202 {
haseo1989 6:94ee12962e13 203 iniLCD();
haseo1989 6:94ee12962e13 204 iniFile();
haseo1989 6:94ee12962e13 205 int tick = 0;
haseo1989 6:94ee12962e13 206 lcd->printf("Initializing!");
haseo1989 6:94ee12962e13 207 while(1)
haseo1989 6:94ee12962e13 208 {
haseo1989 6:94ee12962e13 209 wait(0.1);
haseo1989 6:94ee12962e13 210 tick++;
haseo1989 6:94ee12962e13 211 if(tick%50 == 0)
haseo1989 6:94ee12962e13 212 T6_saveData();
haseo1989 6:94ee12962e13 213
haseo1989 6:94ee12962e13 214 if(tick%20 == 0)
haseo1989 6:94ee12962e13 215 T4_display();
haseo1989 6:94ee12962e13 216
haseo1989 6:94ee12962e13 217 if(tick%18 == 0)
haseo1989 6:94ee12962e13 218 T5_SWtask();
haseo1989 6:94ee12962e13 219
haseo1989 6:94ee12962e13 220 if((tick%15 == 0) && (run_task ==1 ))
haseo1989 6:94ee12962e13 221 RunLed();
haseo1989 6:94ee12962e13 222
haseo1989 6:94ee12962e13 223 if(tick%10 == 0)
haseo1989 6:94ee12962e13 224 T1_checkWave();
haseo1989 6:94ee12962e13 225
haseo1989 6:94ee12962e13 226 if(tick%8 == 0)
haseo1989 6:94ee12962e13 227 T3_checkAIP();
haseo1989 6:94ee12962e13 228
haseo1989 6:94ee12962e13 229 if(tick%4 == 0)
haseo1989 6:94ee12962e13 230 T2_checkSW();
haseo1989 6:94ee12962e13 231
haseo1989 6:94ee12962e13 232 tick = tick%900;
haseo1989 3:6cc06b58870b 233
haseo1989 6:94ee12962e13 234
haseo1989 6:94ee12962e13 235 }
haseo1989 6:94ee12962e13 236 return 0;
haseo1989 6:94ee12962e13 237 }
haseo1989 6:94ee12962e13 238