Yifeng Yuan / Mbed 2 deprecated ese519_lab1_extra1

for extra credit 1

Dependencies:   mbed

main.cpp@2:7eeefc3bbca4, 2015-02-08 (annotated)

Committer:
yifeng021
Date:
Sun Feb 08 20:44:21 2015 +0000
Revision:
2:7eeefc3bbca4
Parent:
1:fb9ce7e54c8d 
extra1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yifeng021 0:893e598b3e49 1 /*
yifeng021 0:893e598b3e49 2 #include "mbed.h"
yifeng021 0:893e598b3e49 3
yifeng021 0:893e598b3e49 4
yifeng021 0:893e598b3e49 5 int main() {
yifeng021 0:893e598b3e49 6 while(1) {
yifeng021 0:893e598b3e49 7 for (float p = 0.0f; p < 1.0f; p += 0.1f) {
yifeng021 0:893e598b3e49 8 pwm1 = p;
yifeng021 0:893e598b3e49 9 wait(0.4);
yifeng021 0:893e598b3e49 10 }
yifeng021 0:893e598b3e49 11 }
yifeng021 0:893e598b3e49 12 }
yifeng021 0:893e598b3e49 13 */
yifeng021 0:893e598b3e49 14
yifeng021 0:893e598b3e49 15 /*
yifeng021 0:893e598b3e49 16 * ESE 519, Spring 2015, Lab 1
yifeng021 0:893e598b3e49 17 * Part 5
yifeng021 0:893e598b3e49 18 * Peter Gebhard, pgeb@seas.upenn.edu
yifeng021 0:893e598b3e49 19 * Yifeng Yuan, yifengy@seas.upenn.edu
yifeng021 0:893e598b3e49 20 */
yifeng021 0:893e598b3e49 21
yifeng021 0:893e598b3e49 22 #include "mbed.h"
yifeng021 0:893e598b3e49 23
yifeng021 0:893e598b3e49 24 int global_code; //global variable
yifeng021 0:893e598b3e49 25 //-1 - error
yifeng021 0:893e598b3e49 26 //1 - dot
yifeng021 0:893e598b3e49 27 //0 - dash
yifeng021 0:893e598b3e49 28 //2 - space
yifeng021 0:893e598b3e49 29 int global_buffer; //stores the codes of each letter
yifeng021 0:893e598b3e49 30 int global_length; //stores the length of a coded word
yifeng021 0:893e598b3e49 31
yifeng021 0:893e598b3e49 32 //Timeout wait_for_timeout;
yifeng021 0:893e598b3e49 33 Timer t;
yifeng021 0:893e598b3e49 34 InterruptIn en1(p21); //declear en1 as interrupt input using pin 21
yifeng021 0:893e598b3e49 35 DigitalOut led1(LED1);
yifeng021 0:893e598b3e49 36 InterruptIn en2(p22); //declear en2 as interrupt input using pin 22
yifeng021 0:893e598b3e49 37 DigitalOut led2(LED2);
yifeng021 0:893e598b3e49 38 DigitalOut led3(p23);
yifeng021 0:893e598b3e49 39 DigitalOut led4(p24);
yifeng021 0:893e598b3e49 40 PwmOut pwm1(p25);
yifeng021 0:893e598b3e49 41
yifeng021 0:893e598b3e49 42
yifeng021 0:893e598b3e49 43 void released();
yifeng021 0:893e598b3e49 44 void depressed();
yifeng021 0:893e598b3e49 45 void speaker();
yifeng021 0:893e598b3e49 46 void light_7seg();
yifeng021 0:893e598b3e49 47 char morse2char(int morse, int length);
yifeng021 0:893e598b3e49 48 int hard_limiter(int duration);
yifeng021 0:893e598b3e49 49
yifeng021 0:893e598b3e49 50 char word[10];
yifeng021 0:893e598b3e49 51 int letter[5];
yifeng021 0:893e598b3e49 52
yifeng021 0:893e598b3e49 53 void depressed() {
yifeng021 0:893e598b3e49 54 t.stop();
yifeng021 0:893e598b3e49 55 int duration = t.read_ms();
yifeng021 0:893e598b3e49 56 char letter;
yifeng021 0:893e598b3e49 57 if (duration > 400) {
yifeng021 0:893e598b3e49 58 //convert code into letter
yifeng021 0:893e598b3e49 59 letter = morse2char(global_buffer,global_length);
yifeng021 0:893e598b3e49 60 //display letter
yifeng021 0:893e598b3e49 61 printf("%c\n", letter);
yifeng021 0:893e598b3e49 62 //clear buffer
yifeng021 0:893e598b3e49 63 global_buffer = 0;
yifeng021 0:893e598b3e49 64 //clear length
yifeng021 0:893e598b3e49 65 //printf("%d\n",global_length);
yifeng021 0:893e598b3e49 66 global_length = 0;
yifeng021 0:893e598b3e49 67
yifeng021 0:893e598b3e49 68 //a space is detected
yifeng021 0:893e598b3e49 69 global_code = 2;
yifeng021 0:893e598b3e49 70 //printf("You pressed the key %d\n", global_code);
yifeng021 0:893e598b3e49 71 letter = ' ';
yifeng021 0:893e598b3e49 72 //print letter
yifeng021 0:893e598b3e49 73 printf("%c\n",letter);
yifeng021 0:893e598b3e49 74 }
yifeng021 0:893e598b3e49 75 t.reset();
yifeng021 0:893e598b3e49 76 t.start();
yifeng021 0:893e598b3e49 77 }
yifeng021 0:893e598b3e49 78
yifeng021 0:893e598b3e49 79 void released() {
yifeng021 0:893e598b3e49 80 t.stop();
yifeng021 0:893e598b3e49 81 int duration = t.read_ms();
yifeng021 0:893e598b3e49 82 global_code = hard_limiter(duration);
yifeng021 0:893e598b3e49 83 //printf("You pressed the key %d\n", global_code);
yifeng021 0:893e598b3e49 84 //append the new code into buffer
yifeng021 0:893e598b3e49 85 global_buffer = global_buffer << 1;
yifeng021 0:893e598b3e49 86 global_buffer = global_buffer + global_code;
yifeng021 0:893e598b3e49 87 //printf("%d\n",global_buffer);
yifeng021 0:893e598b3e49 88 //keep tracking length of code
yifeng021 0:893e598b3e49 89 global_length = global_length + 1;
yifeng021 0:893e598b3e49 90 light_7seg();
yifeng021 0:893e598b3e49 91 speaker();
yifeng021 0:893e598b3e49 92 t.reset();
yifeng021 0:893e598b3e49 93 t.start();
yifeng021 0:893e598b3e49 94
yifeng021 0:893e598b3e49 95 }
yifeng021 0:893e598b3e49 96
yifeng021 0:893e598b3e49 97 void speaker() {
yifeng021 0:893e598b3e49 98 if (global_code == 1) {
yifeng021 0:893e598b3e49 99 pwm1 = 0.2f;
yifeng021 0:893e598b3e49 100 wait(0.1);
yifeng021 0:893e598b3e49 101 pwm1 = 0.0f;
yifeng021 0:893e598b3e49 102 }
yifeng021 0:893e598b3e49 103 if (global_code == 0) {
yifeng021 0:893e598b3e49 104 pwm1 = 0.2f;
yifeng021 0:893e598b3e49 105 wait(0.3);
yifeng021 0:893e598b3e49 106 pwm1 = 0.0f;
yifeng021 0:893e598b3e49 107 }
yifeng021 0:893e598b3e49 108 }
yifeng021 0:893e598b3e49 109
yifeng021 0:893e598b3e49 110 void light_7seg() {
yifeng021 0:893e598b3e49 111
yifeng021 0:893e598b3e49 112 if (global_code == 1) {
yifeng021 0:893e598b3e49 113 led3 = 0;
yifeng021 0:893e598b3e49 114 wait(0.2);
yifeng021 0:893e598b3e49 115 led3 = 1;
yifeng021 0:893e598b3e49 116 }
yifeng021 0:893e598b3e49 117 if (global_code == 0) {
yifeng021 0:893e598b3e49 118 led4 = 0;
yifeng021 0:893e598b3e49 119 wait(0.2);
yifeng021 0:893e598b3e49 120 led4 = 1;
yifeng021 0:893e598b3e49 121 }
yifeng021 0:893e598b3e49 122
yifeng021 0:893e598b3e49 123 }
yifeng021 0:893e598b3e49 124
yifeng021 0:893e598b3e49 125 int hard_limiter(int duration) {
yifeng021 0:893e598b3e49 126
yifeng021 0:893e598b3e49 127 int symbol;
yifeng021 0:893e598b3e49 128
yifeng021 0:893e598b3e49 129 if (duration >= 30 && duration <= 200){
yifeng021 0:893e598b3e49 130 symbol = 1;
yifeng021 0:893e598b3e49 131 }
yifeng021 0:893e598b3e49 132 else if (duration > 200) {
yifeng021 0:893e598b3e49 133 symbol = 0;
yifeng021 0:893e598b3e49 134 }
yifeng021 0:893e598b3e49 135 else {
yifeng021 0:893e598b3e49 136 symbol = -1;
yifeng021 0:893e598b3e49 137 }
yifeng021 0:893e598b3e49 138 return symbol;
yifeng021 0:893e598b3e49 139
yifeng021 0:893e598b3e49 140 }
yifeng021 0:893e598b3e49 141 /*
yifeng021 0:893e598b3e49 142 int morseStr2int(char* morse) {}
yifeng021 0:893e598b3e49 143 */
yifeng021 0:893e598b3e49 144
yifeng021 0:893e598b3e49 145 char morse2char(int morse, int length) {
yifeng021 0:893e598b3e49 146 switch (length) {
yifeng021 0:893e598b3e49 147 case 1:
yifeng021 0:893e598b3e49 148 switch (morse) {
yifeng021 0:893e598b3e49 149 case 0:
yifeng021 0:893e598b3e49 150 return 'T';
yifeng021 0:893e598b3e49 151 case 1:
yifeng021 0:893e598b3e49 152 return 'E';
yifeng021 0:893e598b3e49 153 }
yifeng021 0:893e598b3e49 154 case 2:
yifeng021 0:893e598b3e49 155 switch (morse) {
yifeng021 0:893e598b3e49 156 case 0:
yifeng021 0:893e598b3e49 157 return 'M';
yifeng021 0:893e598b3e49 158 case 1:
yifeng021 0:893e598b3e49 159 return 'N';
yifeng021 0:893e598b3e49 160 case 2:
yifeng021 0:893e598b3e49 161 return 'A';
yifeng021 0:893e598b3e49 162 case 3:
yifeng021 0:893e598b3e49 163 return 'I';
yifeng021 0:893e598b3e49 164 }
yifeng021 0:893e598b3e49 165 case 3:
yifeng021 0:893e598b3e49 166 switch (morse) {
yifeng021 0:893e598b3e49 167 case 0:
yifeng021 0:893e598b3e49 168 return 'O';
yifeng021 0:893e598b3e49 169 case 1:
yifeng021 0:893e598b3e49 170 return 'G';
yifeng021 0:893e598b3e49 171 case 2:
yifeng021 0:893e598b3e49 172 return 'K';
yifeng021 0:893e598b3e49 173 case 3:
yifeng021 0:893e598b3e49 174 return 'D';
yifeng021 0:893e598b3e49 175 case 4:
yifeng021 0:893e598b3e49 176 return 'W';
yifeng021 0:893e598b3e49 177 case 5:
yifeng021 0:893e598b3e49 178 return 'R';
yifeng021 0:893e598b3e49 179 case 6:
yifeng021 0:893e598b3e49 180 return 'U';
yifeng021 0:893e598b3e49 181 case 7:
yifeng021 0:893e598b3e49 182 return 'S';
yifeng021 0:893e598b3e49 183 }
yifeng021 0:893e598b3e49 184 case 4:
yifeng021 0:893e598b3e49 185 switch (morse) {
yifeng021 0:893e598b3e49 186 case 2:
yifeng021 0:893e598b3e49 187 return 'Q';
yifeng021 0:893e598b3e49 188 case 3:
yifeng021 0:893e598b3e49 189 return 'Z';
yifeng021 0:893e598b3e49 190 case 4:
yifeng021 0:893e598b3e49 191 return 'Y';
yifeng021 0:893e598b3e49 192 case 5:
yifeng021 0:893e598b3e49 193 return 'C';
yifeng021 0:893e598b3e49 194 case 6:
yifeng021 0:893e598b3e49 195 return 'X';
yifeng021 0:893e598b3e49 196 case 7:
yifeng021 0:893e598b3e49 197 return 'B';
yifeng021 0:893e598b3e49 198 case 8:
yifeng021 0:893e598b3e49 199 return 'J';
yifeng021 0:893e598b3e49 200 case 9:
yifeng021 0:893e598b3e49 201 return 'P';
yifeng021 0:893e598b3e49 202 case 11:
yifeng021 0:893e598b3e49 203 return 'L';
yifeng021 0:893e598b3e49 204 case 13:
yifeng021 0:893e598b3e49 205 return 'F';
yifeng021 0:893e598b3e49 206 case 14:
yifeng021 0:893e598b3e49 207 return 'V';
yifeng021 0:893e598b3e49 208 case 15:
yifeng021 0:893e598b3e49 209 return 'H';
yifeng021 0:893e598b3e49 210 }
yifeng021 0:893e598b3e49 211 case 5:
yifeng021 0:893e598b3e49 212 switch (morse) {
yifeng021 0:893e598b3e49 213 case 0:
yifeng021 0:893e598b3e49 214 return '0';
yifeng021 0:893e598b3e49 215 case 1:
yifeng021 0:893e598b3e49 216 return '9';
yifeng021 0:893e598b3e49 217 case 3:
yifeng021 0:893e598b3e49 218 return '8';
yifeng021 0:893e598b3e49 219 case 7:
yifeng021 0:893e598b3e49 220 return '7';
yifeng021 0:893e598b3e49 221 case 15:
yifeng021 0:893e598b3e49 222 return '6';
yifeng021 0:893e598b3e49 223 case 31:
yifeng021 0:893e598b3e49 224 return '5';
yifeng021 0:893e598b3e49 225 case 30:
yifeng021 0:893e598b3e49 226 return '4';
yifeng021 0:893e598b3e49 227 case 28:
yifeng021 0:893e598b3e49 228 return '3';
yifeng021 0:893e598b3e49 229 case 24:
yifeng021 0:893e598b3e49 230 return '2';
yifeng021 0:893e598b3e49 231 case 16:
yifeng021 0:893e598b3e49 232 return '1';
yifeng021 0:893e598b3e49 233 }
yifeng021 0:893e598b3e49 234 }
yifeng021 1:fb9ce7e54c8d 235 return '\0';
yifeng021 0:893e598b3e49 236 }
yifeng021 0:893e598b3e49 237
yifeng021 0:893e598b3e49 238 int main() {
yifeng021 0:893e598b3e49 239
yifeng021 0:893e598b3e49 240 led3 = 1;
yifeng021 0:893e598b3e49 241 led4 = 1;
yifeng021 1:fb9ce7e54c8d 242 pwm1 = 0;
yifeng021 0:893e598b3e49 243 en1.rise(&depressed);
yifeng021 0:893e598b3e49 244 en1.fall(&released);
yifeng021 0:893e598b3e49 245 t.start();
yifeng021 0:893e598b3e49 246
yifeng021 0:893e598b3e49 247 while (1) {
yifeng021 0:893e598b3e49 248 wait(0.5);
yifeng021 0:893e598b3e49 249 }
yifeng021 0:893e598b3e49 250 }