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?
User | Revision | Line number | New 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 | } |