Superminaren/MMDVM
1
0
Fork 0
mirror of https://github.com/g4klx/MMDVM.git synced 2026-10-14 07:44:11 +02:00
Code Issues Packages Projects Releases Wiki Activity

Update P25 to match YSF demodulator, work in progress.

Browse Source
This commit is contained in:
Jonathan Naylor
2017-01-29 19:08:44 +00:00
parent 609c2ead53
commit 9d1fbcfc73
3 changed files with 268 additions and 204 deletions
Download Patch File Download Diff File Expand all files Collapse all files
P25RX.h
+20 -14
View File
@@ -31,31 +31,37 @@ class CP25RX {
public:
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();
private:
uint32_t m_pll;
bool m_prev;
P25RX_STATE m_state;
uint32_t m_symbolBuffer;
uint64_t m_bitBuffer;
q15_t m_symbols[P25_SYNC_LENGTH_SYMBOLS];
uint8_t m_outBuffer[P25_LDU_FRAME_LENGTH_BYTES + 3U];
uint8_t* m_buffer;
uint16_t m_bufferPtr;
uint16_t m_symbolPtr;
uint32_t m_bitBuffer[P25_RADIO_SYMBOL_LENGTH];
q15_t m_buffer[P25_LDU_FRAME_LENGTH_SAMPLES];
uint16_t m_bitPtr;
uint16_t m_dataPtr;
uint16_t m_endPtr;
uint16_t m_minSyncPtr;
uint16_t m_maxSyncPtr;
uint16_t m_syncPtr;
q31_t m_maxCorr;
uint16_t m_lostCount;
q15_t m_centre;
q15_t m_threshold;
q15_t m_centre[16U];
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;
uint16_t m_rssiCount;
void processNone(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