kopia lustrzana https://github.com/DL7AD/pecanpico9
267 wiersze
2.9 KiB
C
267 wiersze
2.9 KiB
C
#include "ch.h"
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#include "hal.h"
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#include "morse.h"
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#include "debug.h"
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static uint8_t *buffer;
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static uint32_t c;
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#define ADDB(bit) { \
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buffer[c/8] |= ((bit & 0x1) << (c % 8)); \
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c++; \
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}
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void dah(void)
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{
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ADDB(1);
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ADDB(1);
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ADDB(1);
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ADDB(0);
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}
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void dit(void)
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{
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ADDB(1);
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ADDB(0);
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}
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void blank(uint32_t ticks) {
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for(uint32_t i=0; i<ticks; i++)
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ADDB(0);
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}
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void morse_encode_char(char letter)
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{
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switch(letter) {
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case 'A':
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dit();
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dah();
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break;
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case 'B':
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dah();
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dit();
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dit();
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dit();
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break;
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case 'C':
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dah();
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dit();
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dah();
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dit();
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break;
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case 'D':
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dah();
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dit();
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dit();
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break;
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case 'E':
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dit();
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break;
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case 'F':
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dit();
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dit();
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dah();
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dit();
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break;
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case 'G':
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dah();
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dah();
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dit();
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break;
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case 'H':
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dit();
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dit();
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dit();
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dit();
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break;
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case 'I':
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dit();
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dit();
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break;
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case 'J':
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dit();
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dah();
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dah();
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dah();
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break;
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case 'K':
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dah();
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dit();
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dah();
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break;
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case 'L':
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dit();
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dah();
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dit();
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dit();
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break;
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case 'M':
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dah();
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dah();
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break;
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case 'N':
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dah();
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dit();
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break;
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case 'O':
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dah();
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dah();
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dah();
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break;
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case 'P':
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dit();
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dah();
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dah();
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dit();
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break;
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case 'Q':
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dah();
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dah();
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dit();
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dah();
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break;
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case 'R':
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dit();
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dah();
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dit();
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break;
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case 'S':
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dit();
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dit();
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dit();
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break;
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case 'T':
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dah();
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break;
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case 'U':
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dit();
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dit();
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dah();
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break;
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case 'V':
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dit();
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dit();
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dit();
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dah();
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break;
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case 'W':
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dit();
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dah();
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dah();
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break;
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case 'X':
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dah();
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dit();
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dit();
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dah();
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break;
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case 'Y':
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dah();
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dit();
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dah();
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dah();
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break;
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case 'Z':
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dah();
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dah();
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dit();
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dit();
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break;
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case '1':
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dit();
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dah();
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dah();
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dah();
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dah();
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break;
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case '2':
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dit();
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dit();
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dah();
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dah();
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dah();
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break;
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case '3':
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dit();
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dit();
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dit();
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dah();
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dah();
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break;
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case '4':
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dit();
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dit();
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dit();
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dit();
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dah();
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break;
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case '5':
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dit();
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dit();
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dit();
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dit();
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dit();
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break;
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case '6':
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dah();
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dit();
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dit();
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dit();
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dit();
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break;
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case '7':
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dah();
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dah();
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dit();
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dit();
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dit();
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break;
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case '8':
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dah();
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dah();
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dah();
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dit();
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dit();
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break;
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case '9':
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dah();
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dah();
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dah();
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dah();
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dit();
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break;
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case '0':
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dah();
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dah();
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dah();
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dah();
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dah();
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break;
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case ' ':
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blank(3);
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break;
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case '.':
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dit();
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dah();
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dit();
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dah();
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dit();
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dah();
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break;
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}
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blank(4);
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}
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uint32_t morse_encode(uint8_t* data, const char* letter)
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{
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// Blanking bits TODO: Replace this
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for(uint32_t i=0; i<256; i++)
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data[i] = 0;
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// Encode morse
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buffer = data; // Buffer
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c = 0; // Bitlength
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for(uint32_t i=0; letter[i]!=0; i++)
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morse_encode_char(letter[i]);
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return c;
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}
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