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Jonathan Naylor
2017-04-15 10:22:56 +01:00
parent c7eb072d2f
commit a6ed1e9667
6 changed files with 83 additions and 68 deletions
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DStarTX.cpp
+6 -6
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@@ -28,8 +28,8 @@ const uint8_t BIT_SYNC = 0xAAU;
const uint8_t FRAME_SYNC[] = {0xEAU, 0xA6U, 0x00U};
// Generated using gaussfir(0.35, 1, 5) in MATLAB
static q15_t DSTAR_GMSK_FILTER[] = {0, 0, 0, 0, 212, 743, 1974, 3965, 6026, 6929, 6026, 3965, 1974, 743, 212}; // numTaps = 15, L = 5
const uint16_t DSTAR_GMSK_FILTER_PHASE_LEN = 3U; // phaseLength = numTaps/L
static q15_t GAUSSIAN_0_35_FILTER[] = {0, 0, 0, 0, 212, 743, 1974, 3965, 6026, 6929, 6026, 3965, 1974, 743, 212}; // numTaps = 15, L = 5
const uint16_t GAUSSIAN_0_35_FILTER_PHASE_LEN = 3U; // phaseLength = numTaps/L
const q15_t DSTAR_LEVEL0 = -4000;
const q15_t DSTAR_LEVEL1 = 4000;
@@ -198,10 +198,10 @@ m_txDelay(60U) // 100ms
{
::memset(m_modState, 0x00U, 20U * sizeof(q15_t));
m_modFilter.L = DSTAR_RADIO_BIT_LENGTH;
m_modFilter.phaseLength = DSTAR_GMSK_FILTER_PHASE_LEN;
m_modFilter.pCoeffs = DSTAR_GMSK_FILTER;
m_modFilter.pState = m_modState;
m_modFilter.L = DSTAR_RADIO_BIT_LENGTH;
m_modFilter.phaseLength = GAUSSIAN_0_35_FILTER_PHASE_LEN;
m_modFilter.pCoeffs = GAUSSIAN_0_35_FILTER;
m_modFilter.pState = m_modState;
}
void CDStarTX::process()