Training / MorseGenerator2

A MorseGenerator library that uses LED to blink morse code

Dependents:   MorseGenerator_Example2 9v1

MorseGenerator.cpp@0:0ad54d10593c, 2014-09-17 (annotated)

Committer:
wm
Date:
Wed Sep 17 13:29:39 2014 +0000
Revision:
0:0ad54d10593c
Initial revision of the MorseGenerator library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wm 0:0ad54d10593c 1 #include "MorseGenerator.h"
wm 0:0ad54d10593c 2
wm 0:0ad54d10593c 3
wm 0:0ad54d10593c 4 MorseGenerator::MorseGenerator(callback_type _callback) {
wm 0:0ad54d10593c 5 generate_morse_map();
wm 0:0ad54d10593c 6 callback = _callback;
wm 0:0ad54d10593c 7 }
wm 0:0ad54d10593c 8
wm 0:0ad54d10593c 9 void MorseGenerator::generate_morse_map() {
wm 0:0ad54d10593c 10 add_mappings("ABCDEFGHIJKLMNOPQRSTUVWXYZ", MORSE_LETTERS);
wm 0:0ad54d10593c 11 add_mappings("1234567890", MORSE_NUMBERS);
wm 0:0ad54d10593c 12 }
wm 0:0ad54d10593c 13
wm 0:0ad54d10593c 14 void MorseGenerator::add_mappings(string morse_chars, const string morse_codes[]) {
wm 0:0ad54d10593c 15 for (int i=0; i < morse_chars.length(); i++) {
wm 0:0ad54d10593c 16 morse_map.insert(MapType::value_type(morse_chars[i], morse_codes[i]));
wm 0:0ad54d10593c 17 }
wm 0:0ad54d10593c 18 }
wm 0:0ad54d10593c 19
wm 0:0ad54d10593c 20 void MorseGenerator::transmit(string message) {
wm 0:0ad54d10593c 21 for (int i=0; i < message.length(); i++) {
wm 0:0ad54d10593c 22 if (strncmp(&message[i], " ", 1) != 0) {
wm 0:0ad54d10593c 23 transmit(message[i]);
wm 0:0ad54d10593c 24 }
wm 0:0ad54d10593c 25 wait_ms(DIT_MS * 7);
wm 0:0ad54d10593c 26 }
wm 0:0ad54d10593c 27 }
wm 0:0ad54d10593c 28
wm 0:0ad54d10593c 29 void MorseGenerator::transmit(char letter) {
wm 0:0ad54d10593c 30 int d;
wm 0:0ad54d10593c 31 string code = morse_map[letter];
wm 0:0ad54d10593c 32
wm 0:0ad54d10593c 33 for (int i=0; i < code.length(); i++) {
wm 0:0ad54d10593c 34 if (strncmp(&code[i], ".", 1) == 0) {
wm 0:0ad54d10593c 35 d = 1;
wm 0:0ad54d10593c 36 } else {
wm 0:0ad54d10593c 37 d = 3;
wm 0:0ad54d10593c 38 }
wm 0:0ad54d10593c 39 callback(1);
wm 0:0ad54d10593c 40 wait_ms(DIT_MS * d);
wm 0:0ad54d10593c 41 callback(0);
wm 0:0ad54d10593c 42 wait_ms(DIT_MS);
wm 0:0ad54d10593c 43 }
wm 0:0ad54d10593c 44 }