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More work on the keyer.

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This commit is contained in:
Jonathan Naylor 2020-04-15 22:41:30 +01:00
parent c103ac91b3
commit 4b0c3d88f3
3 changed files with 39 additions and 6 deletions
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29
FMKeyer.cpp
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@ -21,7 +21,7 @@
#include "FMKeyer.h"
const struct {
uint8_t c;
char c;
uint32_t pattern;
uint8_t length;
} SYMBOL_LIST[] = {
@ -78,17 +78,40 @@ const uint8_t BIT_MASK_TABLE[] = {0x80U, 0x40U, 0x20U, 0x10U, 0x08U, 0x04U, 0x02
CFMKeyer::CFMKeyer() :
m_level(128 * 128),
m_wanted(false),
m_running(false)
m_running(false),
m_poBuffer(),
m_poLen(0U)
{
}
void CFMKeyer::setParams(const char* text, uint8_t speed, uint16_t frequency, uint8_t level)
{
m_level = q15_t(level * 128);
for (uint8_t i = 0U; text[i] != '\0'; i++) {
for (uint8_t j = 0U; SYMBOL_LIST[j].c != 0U; j++) {
if (SYMBOL_LIST[j].c == text[i]) {
uint32_t MASK = 0x80000000U;
for (uint8_t k = 0U; k < SYMBOL_LIST[j].length; k++, m_poLen++, MASK >>= 1) {
bool b = (SYMBOL_LIST[j].pattern & MASK) == MASK;
WRITE_BIT(m_poBuffer, m_poLen, b);
if (m_poLen >= 995U) {
m_poLen = 0U;
return;
}
}
break;
}
}
}
}
void CFMKeyer::getAudio(q15_t* samples, uint8_t length)
{
if (!m_wanted && !m_running)
return;
}
void CFMKeyer::start()
@ -98,6 +121,8 @@ void CFMKeyer::start()
void CFMKeyer::stop()
{
m_wanted = false;
m_running = false;
}
bool CFMKeyer::isRunning() const