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Update P25 to match YSF demodulator, work in progress.

c4fmdemod
Jonathan Naylor 2017-01-29 19:08:44 +00:00
parent 609c2ead53
commit 9d1fbcfc73
3 changed files with 268 additions and 204 deletions
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428
P25RX.cpp
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (C) 2016,2017 by Jonathan Naylor G4KLX * Copyright (C) 2009-2017 by Jonathan Naylor G4KLX
* *
* This program is free software; you can redistribute it and/or modify * This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by * it under the terms of the GNU General Public License as published by
@ -16,239 +16,194 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/ */
// #define WANT_DEBUG #define WANT_DEBUG
#include "Config.h" #include "Config.h"
#include "Globals.h" #include "Globals.h"
#include "P25RX.h" #include "P25RX.h"
#include "Utils.h" #include "Utils.h"
const unsigned int BUFFER_LENGTH = 200U;
const q15_t SCALING_FACTOR = 18750; // Q15(0.55) const q15_t SCALING_FACTOR = 18750; // Q15(0.55)
const uint32_t PLLMAX = 0x10000U; const uint8_t MAX_SYNC_SYMBOLS_ERRS = 2U;
const uint32_t PLLINC = PLLMAX / P25_RADIO_SYMBOL_LENGTH; const uint8_t MAX_SYNC_BYTES_ERRS = 3U;
const uint32_t INC = PLLINC / 32U;
const uint8_t SYNC_SYMBOL_ERRS = 0U;
const uint8_t SYNC_BIT_START_ERRS = 2U;
const uint8_t SYNC_BIT_RUN_ERRS = 4U;
const unsigned int MAX_SYNC_FRAMES = 3U + 1U;
const uint8_t BIT_MASK_TABLE[] = {0x80U, 0x40U, 0x20U, 0x10U, 0x08U, 0x04U, 0x02U, 0x01U}; const uint8_t BIT_MASK_TABLE[] = {0x80U, 0x40U, 0x20U, 0x10U, 0x08U, 0x04U, 0x02U, 0x01U};
#define WRITE_BIT1(p,i,b) p[(i)>>3] = (b) ? (p[(i)>>3] | BIT_MASK_TABLE[(i)&7]) : (p[(i)>>3] & ~BIT_MASK_TABLE[(i)&7]) #define WRITE_BIT1(p,i,b) p[(i)>>3] = (b) ? (p[(i)>>3] | BIT_MASK_TABLE[(i)&7]) : (p[(i)>>3] & ~BIT_MASK_TABLE[(i)&7])
#define READ_BIT1(p,i) (p[(i)>>3] & BIT_MASK_TABLE[(i)&7])
const uint16_t NOENDPTR = 9999U;
const unsigned int MAX_SYNC_FRAMES = 4U + 1U;
CP25RX::CP25RX() : CP25RX::CP25RX() :
m_pll(0U),
m_prev(false),
m_state(P25RXS_NONE), m_state(P25RXS_NONE),
m_bitBuffer(0x00U), m_bitBuffer(),
m_symbols(), m_buffer(),
m_outBuffer(), m_bitPtr(0U),
m_buffer(NULL), m_dataPtr(0U),
m_bufferPtr(0U), m_endPtr(NOENDPTR),
m_symbolPtr(0U), m_syncPtr(NOENDPTR),
m_minSyncPtr(NOENDPTR),
m_maxSyncPtr(NOENDPTR),
m_maxCorr(0),
m_lostCount(0U), m_lostCount(0U),
m_centre(0), m_centre(),
m_threshold(0), m_centreVal(0),
m_centreBest(0),
m_threshold(),
m_thresholdVal(0),
m_thresholdBest(0),
m_averagePtr(0u),
m_rssiAccum(0U), m_rssiAccum(0U),
m_rssiCount(0U) m_rssiCount(0U)
{ {
m_buffer = m_outBuffer + 1U;
} }
void CP25RX::reset() void CP25RX::reset()
{ {
m_pll = 0U; m_state = P25RXS_NONE;
m_prev = false; m_dataPtr = 0U;
m_state = P25RXS_NONE; m_bitPtr = 0U;
m_bitBuffer = 0x00U; m_maxCorr = 0;
m_bufferPtr = 0U; m_averagePtr = 0U;
m_symbolPtr = 0U; m_endPtr = NOENDPTR;
m_lostCount = 0U; m_syncPtr = NOENDPTR;
m_centre = 0; m_minSyncPtr = NOENDPTR;
m_threshold = 0; m_maxSyncPtr = NOENDPTR;
m_rssiAccum = 0U; m_centreVal = 0;
m_rssiCount = 0U; m_thresholdVal = 0;
m_lostCount = 0U;
m_rssiAccum = 0U;
m_rssiCount = 0U;
} }
void CP25RX::samples(const q15_t* samples, const uint16_t* rssi, uint8_t length) void CP25RX::samples(const q15_t* samples, uint16_t* rssi, uint8_t length)
{ {
for (uint16_t i = 0U; i < length; i++) { for (uint8_t i = 0U; i < length; i++) {
q15_t sample = samples[i];
m_rssiAccum += rssi[i]; m_rssiAccum += rssi[i];
m_rssiCount++; m_rssiCount++;
bool bit = samples[i] < 0; m_bitBuffer[m_bitPtr] <<= 1;
if (sample < 0)
m_bitBuffer[m_bitPtr] |= 0x01U;
if (bit != m_prev) { m_buffer[m_dataPtr] = sample;
if (m_pll < (PLLMAX / 2U))
m_pll += INC;
else
m_pll -= INC;
}
m_prev = bit; if (m_state == P25RXS_NONE)
processNone(sample);
else
processData(sample);
m_pll += PLLINC; m_dataPtr++;
if (m_dataPtr >= P25_LDU_FRAME_LENGTH_SAMPLES)
m_dataPtr = 0U;
if (m_pll >= PLLMAX) { m_bitPtr++;
m_pll -= PLLMAX; if (m_bitPtr >= P25_RADIO_SYMBOL_LENGTH)
m_bitPtr = 0U;
if (m_state == P25RXS_NONE)
processNone(samples[i]);
else
processData(samples[i]);
}
} }
} }
void CP25RX::processNone(q15_t sample) void CP25RX::processNone(q15_t sample)
{ {
m_symbolBuffer <<= 1; bool ret = correlateSync(true);
if (sample < 0) if (ret) {
m_symbolBuffer |= 0x01U; m_rssiAccum = 0U;
m_rssiCount = 0U;
m_symbols[m_symbolPtr] = sample; io.setDecode(true);
io.setADCDetection(true);
// Fuzzy matching of the data sync bit sequence
if (countBits32((m_symbolBuffer & P25_SYNC_SYMBOLS_MASK) ^ P25_SYNC_SYMBOLS) <= SYNC_SYMBOL_ERRS) {
q15_t max = -16000;
q15_t min = 16000;
for (uint8_t i = 0U; i < P25_SYNC_LENGTH_SYMBOLS; i++) {
q15_t val = m_symbols[i];
if (val > max)
max = val;
if (val < min)
min = val;
}
q15_t centre = (max + min) >> 1;
q31_t v1 = (max - centre) * SCALING_FACTOR;
q15_t threshold = q15_t(v1 >> 15);
uint16_t ptr = m_symbolPtr + 1U;
if (ptr >= P25_SYNC_LENGTH_SYMBOLS)
ptr = 0U;
for (uint8_t i = 0U; i < P25_SYNC_LENGTH_SYMBOLS; i++) {
q15_t sample = m_symbols[ptr] - centre;
if (sample < -threshold) {
m_bitBuffer <<= 2;
m_bitBuffer |= 0x01U;
} else if (sample < 0) {
m_bitBuffer <<= 2;
m_bitBuffer |= 0x00U;
} else if (sample < threshold) {
m_bitBuffer <<= 2;
m_bitBuffer |= 0x02U;
} else {
m_bitBuffer <<= 2;
m_bitBuffer |= 0x03U;
}
ptr++;
if (ptr >= P25_SYNC_LENGTH_SYMBOLS)
ptr = 0U;
}
// Fuzzy matching of the data sync bit sequence
if (countBits64((m_bitBuffer & P25_SYNC_BITS_MASK) ^ P25_SYNC_BITS) <= SYNC_BIT_START_ERRS) {
DEBUG5("P25RX: sync found in None min/max/centre/threshold", min, max, centre, threshold);
for (uint8_t i = 0U; i < P25_SYNC_LENGTH_BYTES; i++)
m_buffer[i] = P25_SYNC_BYTES[i];
m_centre = centre;
m_threshold = threshold;
m_lostCount = MAX_SYNC_FRAMES;
m_bufferPtr = P25_SYNC_LENGTH_BITS;
m_state = P25RXS_DATA;
m_rssiAccum = 0U;
m_rssiCount = 0U;
io.setDecode(true);
io.setADCDetection(true);
}
} }
m_symbolPtr++; if (m_dataPtr == m_endPtr) {
if (m_symbolPtr >= P25_SYNC_LENGTH_SYMBOLS) for (uint8_t i = 0U; i < 16U; i++) {
m_symbolPtr = 0U; m_centre[i] = m_centreBest;
m_threshold[i] = m_thresholdBest;
}
m_centreVal = m_centreBest;
m_thresholdVal = m_thresholdBest;
m_averagePtr = 0U;
DEBUG4("P25RX: sync found in None pos/centre/threshold", m_syncPtr, m_centreVal, m_thresholdVal);
uint16_t ptr = m_endPtr + P25_RADIO_SYMBOL_LENGTH + 1U;
if (ptr >= P25_LDU_FRAME_LENGTH_SAMPLES)
ptr -= P25_LDU_FRAME_LENGTH_SAMPLES;
m_minSyncPtr = m_syncPtr + P25_LDU_FRAME_LENGTH_SAMPLES - 1U;
if (m_minSyncPtr >= P25_LDU_FRAME_LENGTH_SAMPLES)
m_minSyncPtr -= P25_LDU_FRAME_LENGTH_SAMPLES;
m_maxSyncPtr = m_syncPtr + 1U;
if (m_maxSyncPtr >= P25_LDU_FRAME_LENGTH_SAMPLES)
m_maxSyncPtr -= P25_LDU_FRAME_LENGTH_SAMPLES;
uint8_t frame[P25_LDU_FRAME_LENGTH_BYTES + 3U];
samplesToBits(ptr, P25_LDU_FRAME_LENGTH_SYMBOLS, frame, 8U, m_centreVal, m_thresholdVal);
frame[0U] = 0x01U;
writeRSSILdu(frame);
// Start the next frame
::memset(frame, 0x00U, P25_LDU_FRAME_LENGTH_BYTES + 3U);
m_state = P25RXS_DATA;
m_maxCorr = 0;
}
} }
void CP25RX::processData(q15_t sample) void CP25RX::processData(q15_t sample)
{ {
sample -= m_centre; if (m_minSyncPtr < m_maxSyncPtr) {
if (m_dataPtr >= m_minSyncPtr && m_dataPtr <= m_maxSyncPtr)
if (sample < -m_threshold) { correlateSync(false);
m_bitBuffer <<= 2;
m_bitBuffer |= 0x01U;
WRITE_BIT1(m_buffer, m_bufferPtr, false);
m_bufferPtr++;
WRITE_BIT1(m_buffer, m_bufferPtr, true);
m_bufferPtr++;
} else if (sample < 0) {
m_bitBuffer <<= 2;
m_bitBuffer |= 0x00U;
WRITE_BIT1(m_buffer, m_bufferPtr, false);
m_bufferPtr++;
WRITE_BIT1(m_buffer, m_bufferPtr, false);
m_bufferPtr++;
} else if (sample < m_threshold) {
m_bitBuffer <<= 2;
m_bitBuffer |= 0x02U;
WRITE_BIT1(m_buffer, m_bufferPtr, true);
m_bufferPtr++;
WRITE_BIT1(m_buffer, m_bufferPtr, false);
m_bufferPtr++;
} else { } else {
m_bitBuffer <<= 2; if (m_dataPtr >= m_minSyncPtr || m_dataPtr <= m_maxSyncPtr)
m_bitBuffer |= 0x03U; correlateSync(false);
WRITE_BIT1(m_buffer, m_bufferPtr, true);
m_bufferPtr++;
WRITE_BIT1(m_buffer, m_bufferPtr, true);
m_bufferPtr++;
} }
// Search for an early sync to indicate an LDU following a header if (m_dataPtr == m_endPtr) {
if (m_bufferPtr >= (P25_HDR_FRAME_LENGTH_BITS + P25_SYNC_LENGTH_BITS - 1U) && m_bufferPtr <= (P25_HDR_FRAME_LENGTH_BITS + P25_SYNC_LENGTH_BITS + 1U)) { uint16_t ptr = m_endPtr + P25_RADIO_SYMBOL_LENGTH + 1U;
// Fuzzy matching of the data sync bit sequence if (ptr >= P25_LDU_FRAME_LENGTH_SAMPLES)
if (countBits64((m_bitBuffer & P25_SYNC_BITS_MASK) ^ P25_SYNC_BITS) <= SYNC_BIT_RUN_ERRS) { ptr -= P25_LDU_FRAME_LENGTH_SAMPLES;
DEBUG2("P25RX: found LDU sync in Data, pos", m_bufferPtr - P25_SYNC_LENGTH_BITS);
m_outBuffer[0U] = 0x01U; // Only update the centre and threshold if they are from a good sync
serial.writeP25Hdr(m_outBuffer, P25_HDR_FRAME_LENGTH_BYTES + 1U); if (m_lostCount == MAX_SYNC_FRAMES) {
m_threshold[m_averagePtr] = m_thresholdBest;
m_centre[m_averagePtr] = m_centreBest;
m_rssiAccum = 0U; m_averagePtr++;
m_rssiCount = 0U; if (m_averagePtr >= 16U)
m_averagePtr = 0U;
// Restore the sync that's now in the wrong place // Find the average centre and threshold values
for (uint8_t i = 0U; i < P25_SYNC_LENGTH_BYTES; i++) m_centreVal = 0;
m_buffer[i] = P25_SYNC_BYTES[i]; m_thresholdVal = 0;
for (uint8_t i = 0U; i < 16U; i++) {
m_centreVal += m_centre[i];
m_thresholdVal += m_threshold[i];
}
m_centreVal >>= 4;
m_thresholdVal >>= 4;
m_lostCount = MAX_SYNC_FRAMES; DEBUG4("P25RX: sync found in Data (best) pos/centre/threshold", m_syncPtr, m_centreBest, m_thresholdBest);
m_bufferPtr = P25_SYNC_LENGTH_BITS; DEBUG4("P25RX: sync found in Data (val) pos/centre/threshold", m_syncPtr, m_centreVal, m_thresholdVal);
m_minSyncPtr = m_syncPtr + P25_LDU_FRAME_LENGTH_SAMPLES - 1U;
if (m_minSyncPtr >= P25_LDU_FRAME_LENGTH_SAMPLES)
m_minSyncPtr -= P25_LDU_FRAME_LENGTH_SAMPLES;
m_maxSyncPtr = m_syncPtr + 1U;
if (m_maxSyncPtr >= P25_LDU_FRAME_LENGTH_SAMPLES)
m_maxSyncPtr -= P25_LDU_FRAME_LENGTH_SAMPLES;
} }
}
// Only search for a sync in the right place +-2 symbols uint8_t frame[P25_LDU_FRAME_LENGTH_BYTES + 3U];
if (m_bufferPtr >= (P25_SYNC_LENGTH_BITS - 2U) && m_bufferPtr <= (P25_SYNC_LENGTH_BITS + 2U)) { samplesToBits(ptr, P25_LDU_FRAME_LENGTH_SYMBOLS, frame, 8U, m_centreVal, m_thresholdVal);
// Fuzzy matching of the data sync bit sequence
if (countBits64((m_bitBuffer & P25_SYNC_BITS_MASK) ^ P25_SYNC_BITS) <= SYNC_BIT_RUN_ERRS) {
DEBUG2("P25RX: found sync in Data, pos", m_bufferPtr - P25_SYNC_LENGTH_BITS);
m_lostCount = MAX_SYNC_FRAMES;
m_bufferPtr = P25_SYNC_LENGTH_BITS;
}
}
// Send a data frame to the host if the required number of bits have been received
if (m_bufferPtr == P25_LDU_FRAME_LENGTH_BITS) {
// We've not seen a data sync for too long, signal RXLOST and change to RX_NONE // We've not seen a data sync for too long, signal RXLOST and change to RX_NONE
m_lostCount--; m_lostCount--;
if (m_lostCount == 0U) { if (m_lostCount == 0U) {
@ -259,16 +214,118 @@ void CP25RX::processData(q15_t sample)
serial.writeP25Lost(); serial.writeP25Lost();
m_state = P25RXS_NONE; m_state = P25RXS_NONE;
} else { m_endPtr = NOENDPTR;
m_outBuffer[0U] = m_lostCount == (MAX_SYNC_FRAMES - 1U) ? 0x01U : 0x00U; } else {
frame[0U] = m_lostCount == (MAX_SYNC_FRAMES - 1U) ? 0x01U : 0x00U;
writeRSSILdu(m_outBuffer); writeRSSILdu(frame);
// Start the next frame // Start the next frame
::memset(m_outBuffer, 0x00U, P25_LDU_FRAME_LENGTH_BYTES + 3U); ::memset(frame, 0x00U, P25_LDU_FRAME_LENGTH_BYTES + 3U);
m_bufferPtr = 0U;
} }
m_maxCorr = 0;
}
}
bool CP25RX::correlateSync(bool none)
{
if (countBits32((m_bitBuffer[m_bitPtr] & P25_SYNC_SYMBOLS_MASK) ^ P25_SYNC_SYMBOLS) <= MAX_SYNC_SYMBOLS_ERRS) {
uint16_t ptr = m_dataPtr + P25_LDU_FRAME_LENGTH_SAMPLES - P25_SYNC_LENGTH_SAMPLES + P25_RADIO_SYMBOL_LENGTH;
if (ptr >= P25_LDU_FRAME_LENGTH_SAMPLES)
ptr -= P25_LDU_FRAME_LENGTH_SAMPLES;
q31_t corr = 0;
q15_t max = -16000;
q15_t min = 16000;
uint32_t mask = 0x00080000U;
for (uint8_t i = 0U; i < P25_SYNC_LENGTH_SYMBOLS; i++, mask >>= 1) {
bool b = (P25_SYNC_SYMBOLS & mask) == mask;
if (m_buffer[ptr] > max)
max = m_buffer[ptr];
if (m_buffer[ptr] < min)
min = m_buffer[ptr];
corr += b ? -m_buffer[ptr] : m_buffer[ptr];
ptr += P25_RADIO_SYMBOL_LENGTH;
if (ptr >= P25_LDU_FRAME_LENGTH_SAMPLES)
ptr -= P25_LDU_FRAME_LENGTH_SAMPLES;
}
if (corr > m_maxCorr) {
q15_t centre = (max + min) >> 1;
q31_t v1 = (max - centre) * SCALING_FACTOR;
q15_t threshold = q15_t(v1 >> 15);
uint8_t sync[P25_SYNC_BYTES_LENGTH];
uint16_t ptr = m_dataPtr + P25_LDU_FRAME_LENGTH_SAMPLES - P25_SYNC_LENGTH_SAMPLES + P25_RADIO_SYMBOL_LENGTH;
if (ptr >= P25_LDU_FRAME_LENGTH_SAMPLES)
ptr -= P25_LDU_FRAME_LENGTH_SAMPLES;
if (none)
samplesToBits(ptr, P25_SYNC_LENGTH_SYMBOLS, sync, 0U, centre, threshold);
else
samplesToBits(ptr, P25_SYNC_LENGTH_SYMBOLS, sync, 0U, m_centreVal, m_thresholdVal);
uint8_t errs = 0U;
for (uint8_t i = 0U; i < P25_SYNC_BYTES_LENGTH; i++)
errs += countBits8(sync[i] ^ P25_SYNC_BYTES[i]);
if (errs <= MAX_SYNC_BYTES_ERRS) {
m_maxCorr = corr;
m_thresholdBest = threshold;
m_centreBest = centre;
m_lostCount = MAX_SYNC_FRAMES;
m_syncPtr = m_dataPtr;
m_endPtr = m_dataPtr + P25_LDU_FRAME_LENGTH_SAMPLES - P25_SYNC_LENGTH_SAMPLES - 1U;
if (m_endPtr >= P25_LDU_FRAME_LENGTH_SAMPLES)
m_endPtr -= P25_LDU_FRAME_LENGTH_SAMPLES;
return true;
}
}
}
return false;
}
void CP25RX::samplesToBits(uint16_t start, uint16_t count, uint8_t* buffer, uint16_t offset, q15_t centre, q15_t threshold)
{
for (uint16_t i = 0U; i < count; i++) {
q15_t sample = m_buffer[start] - centre;
if (sample < -threshold) {
WRITE_BIT1(buffer, offset, false);
offset++;
WRITE_BIT1(buffer, offset, true);
offset++;
} else if (sample < 0) {
WRITE_BIT1(buffer, offset, false);
offset++;
WRITE_BIT1(buffer, offset, false);
offset++;
} else if (sample < threshold) {
WRITE_BIT1(buffer, offset, true);
offset++;
WRITE_BIT1(buffer, offset, false);
offset++;
} else {
WRITE_BIT1(buffer, offset, true);
offset++;
WRITE_BIT1(buffer, offset, true);
offset++;
}
start += P25_RADIO_SYMBOL_LENGTH;
if (start >= P25_LDU_FRAME_LENGTH_SAMPLES)
start -= P25_LDU_FRAME_LENGTH_SAMPLES;
} }
} }
@ -292,3 +349,4 @@ void CP25RX::writeRSSILdu(uint8_t* ldu)
m_rssiAccum = 0U; m_rssiAccum = 0U;
m_rssiCount = 0U; m_rssiCount = 0U;
} }

34
P25RX.h
View File

@ -31,31 +31,37 @@ class CP25RX {
public: public:
CP25RX(); CP25RX();
void samples(const q15_t* samples, const uint16_t* rssi, uint8_t length); void samples(const q15_t* samples, uint16_t* rssi, uint8_t length);
void reset(); void reset();
private: private:
uint32_t m_pll;
bool m_prev;
P25RX_STATE m_state; P25RX_STATE m_state;
uint32_t m_symbolBuffer; uint32_t m_bitBuffer[P25_RADIO_SYMBOL_LENGTH];
uint64_t m_bitBuffer; q15_t m_buffer[P25_LDU_FRAME_LENGTH_SAMPLES];
q15_t m_symbols[P25_SYNC_LENGTH_SYMBOLS]; uint16_t m_bitPtr;
uint8_t m_outBuffer[P25_LDU_FRAME_LENGTH_BYTES + 3U]; uint16_t m_dataPtr;
uint8_t* m_buffer; uint16_t m_endPtr;
uint16_t m_bufferPtr; uint16_t m_minSyncPtr;
uint16_t m_symbolPtr; uint16_t m_maxSyncPtr;
uint16_t m_syncPtr;
q31_t m_maxCorr;
uint16_t m_lostCount; uint16_t m_lostCount;
q15_t m_centre; q15_t m_centre[16U];
q15_t m_threshold; q15_t m_centreVal;
q15_t m_centreBest;
q15_t m_threshold[16U];
q15_t m_thresholdVal;
q15_t m_thresholdBest;
uint8_t m_averagePtr;
uint32_t m_rssiAccum; uint32_t m_rssiAccum;
uint16_t m_rssiCount; uint16_t m_rssiCount;
void processNone(q15_t sample); void processNone(q15_t sample);
void processData(q15_t sample); void processData(q15_t sample);
void writeRSSILdu(uint8_t* data); bool correlateSync(bool none);
void samplesToBits(uint16_t start, uint16_t count, uint8_t* buffer, uint16_t offset, q15_t centre, q15_t threshold);
void writeRSSILdu(uint8_t* ldu);
}; };
#endif #endif

10
YSFRX.h
View File

@ -57,11 +57,11 @@ private:
uint32_t m_rssiAccum; uint32_t m_rssiAccum;
uint16_t m_rssiCount; uint16_t m_rssiCount;
void processNone(q15_t sample); void processNone(q15_t sample);
void processData(q15_t sample); void processData(q15_t sample);
bool correlateSync(bool none); bool correlateSync(bool none);
void samplesToBits(uint16_t start, uint16_t count, uint8_t* buffer, uint16_t offset, q15_t centre, q15_t threshold); void samplesToBits(uint16_t start, uint16_t count, uint8_t* buffer, uint16_t offset, q15_t centre, q15_t threshold);
void writeRSSIData(uint8_t* data); void writeRSSIData(uint8_t* data);
}; };
#endif #endif