kopia lustrzana https://github.com/Qyon/STM32_RTTY
38 wiersze
601 B
C
38 wiersze
601 B
C
#include "f_rtty.h"
|
|
|
|
uint8_t start_bits;
|
|
rttyStates send_rtty(char *buffer) {
|
|
static uint8_t nr_bit = 0;
|
|
nr_bit++;
|
|
if (start_bits){
|
|
start_bits--;
|
|
return rttyOne;
|
|
}
|
|
|
|
if (nr_bit == 1) {
|
|
return rttyZero;
|
|
}
|
|
if (nr_bit > 1 && nr_bit < (RTTY_7BIT ? 9 : 10)) {
|
|
if ((*(buffer) >> (nr_bit - 2)) & 0x01) {
|
|
return rttyOne;
|
|
} else {
|
|
return rttyZero;
|
|
}
|
|
}
|
|
|
|
#ifdef RTTY_7BIT
|
|
nr_bit++;
|
|
#endif
|
|
|
|
if (nr_bit == 10) {
|
|
return rttyOne;
|
|
}
|
|
#ifdef RTTY_USE_2_STOP_BITS
|
|
if (nr_bit == 11) {
|
|
return rttyOne;
|
|
}
|
|
#endif
|
|
nr_bit = 0;
|
|
return rttyEnd;
|
|
}
|