mirror of
https://codeberg.org/mclemens/ubitxv6.git
synced 2024-06-12 11:51:03 +00:00
116 lines
2.8 KiB
C++
116 lines
2.8 KiB
C++
#include <Arduino.h>
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#include "ubitx.h"
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#include "morse.h"
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/*
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* Each byte of the morse table stores one letter.
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* The 0 is a dot, a 1 is a dash
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* From the Most significant byte onwards, the letter is padded with 1s.
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* The first zero after the 1s indicates the start of the letter, it MUST be discarded
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*/
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extern int cwSpeed;
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struct Morse {
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char letter;
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unsigned char code;
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};
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static const PROGMEM struct Morse morse_table[] = {
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{'a', 0xf9}, // 11111001
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{'b', 0xe8}, // 11101000
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{'c', 0xea}, // 11101010
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{'d', 0xf4}, // 11110100
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{'e', 0xfc}, // 11111100
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{'f', 0xe4}, // 11100100
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{'g', 0xf6}, // 11110110
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{'h', 0xe0}, // 11100000
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{'i', 0xf8}, // 11111000
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{'j', 0xe7}, // 11100111
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{'k', 0xf6}, // 11110101
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{'l', 0xe4}, // 11100100
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{'m', 0xfb}, // 11111011
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{'n', 0xfa}, // 11111010
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{'o', 0xf7}, // 11110111
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{'p', 0xe6}, // 11100110
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{'q', 0xed}, // 11101101
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{'r', 0xf2}, // 11110010
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{'s', 0xf0}, // 11110000
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{'t', 0xfd}, // 11111101
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{'u', 0xf1}, // 11110001
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{'v', 0xe1}, // 11100001
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{'w', 0xf3}, // 11110011
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{'x', 0xe9}, // 11101001
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{'y', 0xe3}, // 11101011
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{'z', 0xec}, // 11101100
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{'1', 0xcf}, // 11001111
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{'2', 0xc7}, // 11000111
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{'3', 0xc3}, // 11000011
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{'4', 0xc1}, // 11000001
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{'5', 0xc0}, // 11000000
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{'6', 0xd0}, // 11010000
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{'7', 0xd8}, // 11011000
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{'8', 0xdc}, // 11011100
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{'9', 0xde}, // 11011110
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{'0', 0xdf}, // 11011111
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{'.', 0xd5}, // 110010101
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{',', 0xd3}, // 110110011 //AD7U 20191217
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{'?', 0xcc}, // 11001100 //AD7U 20191217 - Added
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};
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static void morseLetter(char c){
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unsigned char mask = 0x80;
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//handle space character as three dashes
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if (c == ' '){
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active_delay(cwSpeed * 9);
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Serial.print(' ');
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return;
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}
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for (int i = 0; i < sizeof(morse_table)/ sizeof(struct Morse); i++){
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struct Morse m;
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memcpy_P(&m, morse_table + i, sizeof(struct Morse));
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if (m.letter == tolower(c)){
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unsigned char code = m.code;
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//Serial.print(m.letter); Serial.println(' ');
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while(mask & code && mask > 1)
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mask = mask >> 1;
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//now we are at the first zero, skip and carry on
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mask = mask >> 1;
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while(mask){
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tone(CW_TONE, sideTone,10000);
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if (mask & code){
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delay(3 * (int)cwSpeed);
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//Serial.print('-');
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}
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else{
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delay((int)cwSpeed);
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//Serial.print('.');
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}
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//Serial.print('#');
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noTone(CW_TONE);
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delay((int)cwSpeed); // space between dots and dashes
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mask = mask >> 1;
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}
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//Serial.println('@');
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delay(200); // space between letters is a dash (3 dots), one dot's space has already been sent
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}
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}
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}
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void morseText(char *text){
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// while (1){
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noTone(CW_TONE);
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delay(1000);
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tone(CW_TONE, 600);
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delay(1000);
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// }
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Serial.println(sideTone);
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while(*text){
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morseLetter(*text++);
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}
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}
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