Training / MorseGenerator

MorseGenerator Library

Dependents:   MorseGenerator_Example

MorseGenerator.cpp@0:e6269370b33f, 2014-09-16 (annotated)

Committer:
screamer
Date:
Tue Sep 16 14:56:13 2014 +0000
Revision:
0:e6269370b33f
initial revision of the MorseGenerator library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
screamer 0:e6269370b33f 1 #include "MorseGenerator.h"
screamer 0:e6269370b33f 2
screamer 0:e6269370b33f 3
screamer 0:e6269370b33f 4 MorseGenerator::MorseGenerator(callback_type _callback) {
screamer 0:e6269370b33f 5 generate_morse_map();
screamer 0:e6269370b33f 6 callback = _callback;
screamer 0:e6269370b33f 7 }
screamer 0:e6269370b33f 8
screamer 0:e6269370b33f 9 void MorseGenerator::generate_morse_map() {
screamer 0:e6269370b33f 10 add_mappings("ABCDEFGHIJKLMNOPQRSTUVWXYZ", MORSE_LETTERS);
screamer 0:e6269370b33f 11 add_mappings("1234567890", MORSE_NUMBERS);
screamer 0:e6269370b33f 12 }
screamer 0:e6269370b33f 13
screamer 0:e6269370b33f 14 void MorseGenerator::add_mappings(string morse_chars, const string morse_codes[]) {
screamer 0:e6269370b33f 15 for (int i=0; i < morse_chars.length(); i++) {
screamer 0:e6269370b33f 16 morse_map.insert(MapType::value_type(morse_chars[i], morse_codes[i]));
screamer 0:e6269370b33f 17 }
screamer 0:e6269370b33f 18 }
screamer 0:e6269370b33f 19
screamer 0:e6269370b33f 20 void MorseGenerator::transmit(string message) {
screamer 0:e6269370b33f 21 for (int i=0; i < message.length(); i++) {
screamer 0:e6269370b33f 22 if (strncmp(&message[i], " ", 1) != 0) {
screamer 0:e6269370b33f 23 transmit(message[i]);
screamer 0:e6269370b33f 24 }
screamer 0:e6269370b33f 25 wait_ms(DIT_MS * 7);
screamer 0:e6269370b33f 26 }
screamer 0:e6269370b33f 27 }
screamer 0:e6269370b33f 28
screamer 0:e6269370b33f 29 void MorseGenerator::transmit(char letter) {
screamer 0:e6269370b33f 30 int d;
screamer 0:e6269370b33f 31 string code = morse_map[letter];
screamer 0:e6269370b33f 32
screamer 0:e6269370b33f 33 for (int i=0; i < code.length(); i++) {
screamer 0:e6269370b33f 34 if (strncmp(&code[i], ".", 1) == 0) {
screamer 0:e6269370b33f 35 d = 1;
screamer 0:e6269370b33f 36 } else {
screamer 0:e6269370b33f 37 d = 3;
screamer 0:e6269370b33f 38 }
screamer 0:e6269370b33f 39 callback(1);
screamer 0:e6269370b33f 40 wait_ms(DIT_MS * d);
screamer 0:e6269370b33f 41 callback(0);
screamer 0:e6269370b33f 42 wait_ms(DIT_MS);
screamer 0:e6269370b33f 43 }
screamer 0:e6269370b33f 44 }