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Update to 48 kHz sample rate.

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This commit is contained in:
Jonathan Naylor 2016-12-19 15:27:52 +00:00
parent 2fad06093f
commit 37080d9901
24 changed files with 79 additions and 118 deletions
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12
DStarTX.cpp
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@ -28,12 +28,12 @@ const uint8_t BIT_SYNC = 0xAAU;
const uint8_t FRAME_SYNC[] = {0xEAU, 0xA6U, 0x00U};
// Generated using gaussfir(0.5, 4, 5) in MATLAB
static q15_t DSTAR_GMSK_FILTER[] = {8, 104, 760, 3158, 7421, 9866, 7421, 3158, 760, 104, 8, 0};
const uint16_t DSTAR_GMSK_FILTER_LEN = 12U;
// Generated using gaussfir(0.5, 4, 10) in MATLAB
static q15_t DSTAR_GMSK_FILTER[] = {1, 4, 15, 52, 151, 380, 832, 1579, 2599, 3710, 4594, 4933, 4594, 3710, 2599, 1579, 832, 380, 151, 52, 15, 4, 1, 0};
const uint16_t DSTAR_GMSK_FILTER_LEN = 24U;
const q15_t DSTAR_LEVEL0[] = {-800, -800, -800, -800, -800};
const q15_t DSTAR_LEVEL1[] = { 800, 800, 800, 800, 800};
const q15_t DSTAR_LEVEL0[] = {-808, -808, -808, -808, -808, -808, -808, -808, -808, -808};
const q15_t DSTAR_LEVEL1[] = { 808, 808, 808, 808, 808, 808, 808, 808, 808, 808};
const uint8_t BIT_MASK_TABLE[] = {0x80U, 0x40U, 0x20U, 0x10U, 0x08U, 0x04U, 0x02U, 0x01U};
@ -198,7 +198,7 @@ m_poPtr(0U),
m_txDelay(60U), // 100ms
m_count(0U)
{
::memset(m_modState, 0x00U, 60U * sizeof(q15_t));
::memset(m_modState, 0x00U, 80U * sizeof(q15_t));
m_modFilter.numTaps = DSTAR_GMSK_FILTER_LEN;
m_modFilter.pState = m_modState;