Superminaren/MMDVM
1
0
Fork 0
mirror of https://github.com/g4klx/MMDVM.git synced 2026-10-24 11:25:01 +02:00
Code Issues Packages Projects Releases Wiki Activity

Update 48k version

Browse Source 
In to NXDN possible problem on sinc filter anc isinc filter, think they must be recalculated but do not know how to do it. On D-STAR, DMR, C4FM and P25 it work.
This commit is contained in:
LucaMarche IZ1MLT
2018-05-30 08:54:45 +02:00
committed by GitHub
parent 62f3e01aa5
commit 694b83123a
75 changed files with 7038 additions and 2324 deletions
Download Patch File Download Diff File Expand all files Collapse all files
DStarRX.h
+27 -14
View File
@@ -1,5 +1,5 @@
/*
* Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
* Copyright (C) 2015,2016,2017 by Jonathan Naylor G4KLX
*
* 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
@@ -32,18 +32,26 @@ class CDStarRX {
public:
CDStarRX();
void samples(const q15_t* samples, uint8_t length);
void samples(const q15_t* samples, const uint16_t* rssi, uint8_t length);
void reset();
private:
uint32_t m_pll;
bool m_prev;
DSRX_STATE m_rxState;
uint32_t m_patternBuffer;
uint8_t m_rxBuffer[100U];
unsigned int m_rxBufferBits;
unsigned int m_dataBits;
uint32_t m_bitBuffer[DSTAR_RADIO_SYMBOL_LENGTH];
q15_t m_headerBuffer[DSTAR_FEC_SECTION_LENGTH_SAMPLES + 2U * DSTAR_RADIO_SYMBOL_LENGTH];
q15_t m_dataBuffer[DSTAR_DATA_LENGTH_SAMPLES];
uint16_t m_bitPtr;
uint16_t m_headerPtr;
uint16_t m_dataPtr;
uint16_t m_startPtr;
uint16_t m_syncPtr;
uint16_t m_minSyncPtr;
uint16_t m_maxSyncPtr;
q31_t m_maxFrameCorr;
q31_t m_maxDataCorr;
uint16_t m_frameCount;
uint8_t m_countdown;
unsigned int m_mar;
int m_pathMetric[4U];
unsigned int m_pathMemory0[42U];
@@ -51,12 +59,17 @@ private:
unsigned int m_pathMemory2[42U];
unsigned int m_pathMemory3[42U];
uint8_t m_fecOutput[42U];
q15_t m_samples[DSTAR_DATA_SYNC_LENGTH_BITS];
uint8_t m_samplesPtr;
void processNone(bool bit);
void processHeader(bool bit);
void processData(bool bit);
uint32_t m_rssiAccum;
uint16_t m_rssiCount;
void processNone(q15_t sample);
void processHeader(q15_t sample);
void processData();
bool correlateFrameSync();
bool correlateDataSync();
void samplesToBits(const q15_t* inBuffer, uint16_t start, uint16_t count, uint8_t* outBuffer, uint16_t limit);
void writeRSSIHeader(unsigned char* header);
void writeRSSIData(unsigned char* data);
bool rxHeader(uint8_t* in, uint8_t* out);
void acs(int* metric);
void viterbiDecode(int* data);