Merge pull request #318 from F4FXL/dstar_correlator_fm

Merge master into dstar correlator fm

CalDStarRX.cpp

@@ -24,7 +24,7 @@
 const unsigned int BUFFER_LENGTH = 200U;
 
 const uint32_t PLLMAX = 0x10000U;
-const uint32_t PLLINC = PLLMAX / DSTAR_RADIO_BIT_LENGTH;
+const uint32_t PLLINC = PLLMAX / DSTAR_RADIO_SYMBOL_LENGTH;
 const uint32_t INC    = PLLINC / 32U;
 
 // D-Star bit order version of 0x55 0x2D 0x16

Config.h

@@ -35,9 +35,6 @@
 // For 19.2 MHz
 // #define EXTERNAL_OSC 19200000
 
-// Allow the use of the COS line to lockout the modem
-// #define USE_COS_AS_LOCKOUT
-
 // Use pins to output the current mode via LEDs
 // #define MODE_LEDS
 

DStarDefines.h

@@ -1,5 +1,5 @@
 /*
- *   Copyright (C) 2009-2015 by Jonathan Naylor G4KLX
+ *   Copyright (C) 2009-2015,2017 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
@@ -19,30 +19,50 @@
 #if !defined(DSTARDEFINES_H)
 #define  DSTARDEFINES_H
 
-const unsigned int DSTAR_RADIO_BIT_LENGTH = 5U;      // At 24 kHz sample rate
+const unsigned int DSTAR_RADIO_SYMBOL_LENGTH = 5U;      // At 24 kHz sample rate
 
-const unsigned int DSTAR_HEADER_LENGTH_BYTES = 41U;
-const unsigned int DSTAR_HEADER_LENGTH_BITS  = DSTAR_HEADER_LENGTH_BYTES * 8U;
+const unsigned int DSTAR_HEADER_LENGTH_BYTES   = 41U;
 
-const unsigned int DSTAR_FEC_SECTION_LENGTH_BYTES = 83U;
-const unsigned int DSTAR_FEC_SECTION_LENGTH_BITS  = 660U;
+const unsigned int DSTAR_FEC_SECTION_LENGTH_BYTES   = 83U;
+const unsigned int DSTAR_FEC_SECTION_LENGTH_SYMBOLS = 660U;
+const unsigned int DSTAR_FEC_SECTION_LENGTH_SAMPLES = DSTAR_FEC_SECTION_LENGTH_SYMBOLS * DSTAR_RADIO_SYMBOL_LENGTH;
 
-const unsigned int DSTAR_DATA_LENGTH_BYTES = 12U;
-const unsigned int DSTAR_DATA_LENGTH_BITS  = DSTAR_DATA_LENGTH_BYTES * 8U;
+const unsigned int DSTAR_DATA_LENGTH_BYTES   = 12U;
+const unsigned int DSTAR_DATA_LENGTH_SYMBOLS = DSTAR_DATA_LENGTH_BYTES * 8U;
+const unsigned int DSTAR_DATA_LENGTH_SAMPLES = DSTAR_DATA_LENGTH_SYMBOLS * DSTAR_RADIO_SYMBOL_LENGTH;
 
-const uint8_t      DSTAR_EOT_BYTES[] = {0x55, 0x55, 0x55, 0x55, 0xC8, 0x7A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-const unsigned int DSTAR_EOT_LENGTH_BYTES = 6U;
-const unsigned int DSTAR_EOT_LENGTH_BITS  = DSTAR_EOT_LENGTH_BYTES * 8U;
+const unsigned int DSTAR_END_SYNC_LENGTH_BYTES = 6U;
+const unsigned int DSTAR_END_SYNC_LENGTH_BITS  = DSTAR_END_SYNC_LENGTH_BYTES * 8U;
 
-const uint8_t      DSTAR_DATA_SYNC_LENGTH_BYTES = 3U;
-const uint8_t      DSTAR_DATA_SYNC_LENGTH_BITS  = DSTAR_DATA_SYNC_LENGTH_BYTES * 8U;
+const unsigned int DSTAR_FRAME_SYNC_LENGTH_BYTES   = 3U;
+const unsigned int DSTAR_FRAME_SYNC_LENGTH_SYMBOLS = DSTAR_FRAME_SYNC_LENGTH_BYTES * 8U;
+const unsigned int DSTAR_FRAME_SYNC_LENGTH_SAMPLES = DSTAR_FRAME_SYNC_LENGTH_SYMBOLS * DSTAR_RADIO_SYMBOL_LENGTH;
 
-const uint8_t      DSTAR_DATA_SYNC_BYTES[] = {0x9E, 0x8D, 0x32, 0x88, 0x26, 0x1A, 0x3F, 0x61, 0xE8, 0x55, 0x2D, 0x16};
+const unsigned int DSTAR_DATA_SYNC_LENGTH_BYTES   = 3U;
+const unsigned int DSTAR_DATA_SYNC_LENGTH_SYMBOLS = DSTAR_DATA_SYNC_LENGTH_BYTES * 8U;
+const unsigned int DSTAR_DATA_SYNC_LENGTH_SAMPLES = DSTAR_DATA_SYNC_LENGTH_SYMBOLS * DSTAR_RADIO_SYMBOL_LENGTH;
 
-const uint8_t      DSTAR_SLOW_DATA_TYPE_TEXT   = 0x40U;
-const uint8_t      DSTAR_SLOW_DATA_TYPE_HEADER = 0x50U;
+const uint8_t DSTAR_DATA_SYNC_BYTES[] = {0x9E, 0x8D, 0x32, 0x88, 0x26, 0x1A, 0x3F, 0x61, 0xE8, 0x55, 0x2D, 0x16};
 
-const uint8_t      DSTAR_SCRAMBLER_BYTES[] = {0x70U, 0x4FU, 0x93U};
+// D-Star bit order version of 0x55 0x6E 0x0A
+const uint32_t DSTAR_FRAME_SYNC_DATA = 0x00557650U;
+const uint32_t DSTAR_FRAME_SYNC_MASK = 0x00FFFFFFU;
+const bool     DSTAR_FRAME_SYNC_SYMBOLS[] = {false, true, false, true, false, true, false, true, false, true, true, true, false, true, true, false, false, true, false, true, false, false, false, false};
+
+// D-Star bit order version of 0x55 0x2D 0x16
+const uint32_t DSTAR_DATA_SYNC_DATA = 0x00AAB468U;
+const uint32_t DSTAR_DATA_SYNC_MASK = 0x00FFFFFFU;
+const bool     DSTAR_DATA_SYNC_SYMBOLS[] = {true, false, true, false, true, false, true, false, true, false, true, true, false, true, false, false, false, true, true, false, true, false, false, false};
+
+// D-Star bit order version of 0x55 0x55 0xC8 0x7A
+const uint32_t DSTAR_END_SYNC_DATA = 0xAAAA135EU;
+const uint32_t DSTAR_END_SYNC_MASK = 0xFFFFFFFFU;
+const uint8_t  DSTAR_END_SYNC_BYTES[] = {0x55, 0x55, 0x55, 0x55, 0xC8, 0x7A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+
+const uint8_t  DSTAR_SLOW_DATA_TYPE_TEXT   = 0x40U;
+const uint8_t  DSTAR_SLOW_DATA_TYPE_HEADER = 0x50U;
+
+const uint8_t  DSTAR_SCRAMBLER_BYTES[] = {0x70U, 0x4FU, 0x93U};
 
 #endif
 

DStarRX.cpp

@@ -1,5 +1,5 @@
 /*
- *   Copyright (C) 2009-2017 by Jonathan Naylor G4KLX
+ *   Copyright (C) 2009-2017,2020 by Jonathan Naylor G4KLX
  *   Copyright (C) 2017 by Andy Uribe CA6JAU
  *
  *   This program is free software; you can redistribute it and/or modify
@@ -22,27 +22,21 @@
 #include "DStarRX.h"
 #include "Utils.h"
 
-const unsigned int BUFFER_LENGTH = 200U;
-
-const uint32_t PLLMAX = 0x10000U;
-const uint32_t PLLINC = PLLMAX / DSTAR_RADIO_BIT_LENGTH;
-const uint32_t INC    = PLLINC / 32U;
-
-const unsigned int MAX_SYNC_BITS = 100U * DSTAR_DATA_LENGTH_BITS;
+const unsigned int MAX_FRAMES = 150U;
 
 // D-Star bit order version of 0x55 0x55 0x6E 0x0A
 const uint32_t FRAME_SYNC_DATA = 0x00557650U;
 const uint32_t FRAME_SYNC_MASK = 0x00FFFFFFU;
-const uint8_t  FRAME_SYNC_ERRS = 2U;
+const uint8_t  FRAME_SYNC_ERRS = 1U;
 
 // D-Star bit order version of 0x55 0x2D 0x16
-const uint32_t DATA_SYNC_DATA = 0x00AAB468U;
-const uint32_t DATA_SYNC_MASK = 0x00FFFFFFU;
+const uint64_t DATA_SYNC_DATA = 0x0000000000AAB468U;
+const uint64_t DATA_SYNC_MASK = 0x0000000000FFFFFFU;
 const uint8_t  DATA_SYNC_ERRS = 2U;
 
 // D-Star bit order version of 0x55 0x55 0xC8 0x7A
-const uint32_t END_SYNC_DATA = 0xAAAA135EU;
-const uint32_t END_SYNC_MASK = 0xFFFFFFFFU;
+const uint64_t END_SYNC_DATA = 0x0000AAAAAAAA135EU;
+const uint64_t END_SYNC_MASK = 0x0000FFFFFFFFFFFFU;
 const uint8_t  END_SYNC_ERRS = 1U;
 
 const uint8_t BIT_MASK_TABLE0[] = {0x7FU, 0xBFU, 0xDFU, 0xEFU, 0xF7U, 0xFBU, 0xFDU, 0xFEU};
@@ -237,14 +231,24 @@ const uint16_t CCITT_TABLE[] = {
   0xf78fU, 0xe606U, 0xd49dU, 0xc514U, 0xb1abU, 0xa022U, 0x92b9U, 0x8330U,
   0x7bc7U, 0x6a4eU, 0x58d5U, 0x495cU, 0x3de3U, 0x2c6aU, 0x1ef1U, 0x0f78U};
 
+const uint16_t NOENDPTR = 9999U;
+
 CDStarRX::CDStarRX() :
-m_pll(0U),
-m_prev(false),
 m_rxState(DSRXS_NONE),
-m_patternBuffer(0x00U),
-m_rxBuffer(),
-m_rxBufferBits(0U),
-m_dataBits(0U),
+m_bitBuffer(),
+m_headerBuffer(),
+m_dataBuffer(),
+m_bitPtr(0U),
+m_headerPtr(0U),
+m_dataPtr(0U),
+m_startPtr(NOENDPTR),
+m_syncPtr(NOENDPTR),
+m_minSyncPtr(NOENDPTR),
+m_maxSyncPtr(NOENDPTR),
+m_maxFrameCorr(0),
+m_maxDataCorr(0),
+m_frameCount(0U),
+m_countdown(0U),
 m_mar(0U),
 m_pathMetric(),
 m_pathMemory0(),
@@ -259,14 +263,20 @@ m_rssiCount(0U)
 
 void CDStarRX::reset()
 {
-  m_pll           = 0U;
-  m_prev          = false;
-  m_rxState       = DSRXS_NONE;
-  m_patternBuffer = 0x00U;
-  m_rxBufferBits  = 0U;
-  m_dataBits      = 0U;
-  m_rssiAccum     = 0U;
-  m_rssiCount     = 0U;
+  m_rxState      = DSRXS_NONE;
+  m_headerPtr    = 0U;
+  m_dataPtr      = 0U;
+  m_bitPtr       = 0U;
+  m_maxFrameCorr = 0;
+  m_maxDataCorr  = 0;
+  m_startPtr     = NOENDPTR;
+  m_syncPtr      = NOENDPTR;
+  m_minSyncPtr   = NOENDPTR;
+  m_maxSyncPtr   = NOENDPTR;
+  m_frameCount   = 0U;
+  m_countdown    = 0U;
+  m_rssiAccum    = 0U;
+  m_rssiCount    = 0U;
 }
 
 void CDStarRX::samples(const q15_t* samples, const uint16_t* rssi, uint8_t length)
@@ -275,125 +285,117 @@ void CDStarRX::samples(const q15_t* samples, const uint16_t* rssi, uint8_t lengt
     m_rssiAccum += rssi[i];
     m_rssiCount++;
 
-    bool bit = samples[i] < 0;
+    q15_t sample = samples[i];
 
-    if (bit != m_prev) {
-      if (m_pll < (PLLMAX / 2U))
-        m_pll += INC;
-      else
-        m_pll -= INC;
+    m_bitBuffer[m_bitPtr] <<= 1;
+    if (sample < 0)
+      m_bitBuffer[m_bitPtr] |= 0x01U;
+
+    m_dataBuffer[m_dataPtr] = sample;
+
+    switch (m_rxState) {
+      case DSRXS_HEADER:
+        processHeader(sample);
+        break;
+      case DSRXS_DATA:
+        processData();
+        break;
+      default:
+        processNone(sample);
+        break;
     }
 
-    m_prev = bit;
+    m_dataPtr++;
+    if (m_dataPtr >= DSTAR_DATA_LENGTH_SAMPLES)
+      m_dataPtr = 0U;
 
-    m_pll += PLLINC;
-
-    if (m_pll >= PLLMAX) {
-      m_pll -= PLLMAX;
-
-      switch (m_rxState) {
-        case DSRXS_NONE:
-          processNone(bit);
-          break;
-        case DSRXS_HEADER:
-          processHeader(bit);
-          break;
-        case DSRXS_DATA:
-          processData(bit);
-          break;
-        default:
-          break;
-      }
-    }
+    m_bitPtr++;
+    if (m_bitPtr >= DSTAR_RADIO_SYMBOL_LENGTH)
+      m_bitPtr = 0U;
   }
 }
 
-void CDStarRX::processNone(bool bit)
+void CDStarRX::processNone(q15_t sample)
 {
-  m_patternBuffer <<= 1;
-  if (bit)
-    m_patternBuffer |= 0x01U;
-
   // Fuzzy matching of the frame sync sequence
-  if (countBits32((m_patternBuffer & FRAME_SYNC_MASK) ^ FRAME_SYNC_DATA) <= FRAME_SYNC_ERRS) {
-    DEBUG1("DStarRX: found frame sync in None");
-
-    ::memset(m_rxBuffer, 0x00U, DSTAR_FEC_SECTION_LENGTH_BYTES);
-    m_rxBufferBits = 0U;
+  bool ret = correlateFrameSync();
+  if (ret) {
+    m_countdown = 5U;
+	
+    m_headerBuffer[m_headerPtr] = sample;
+    m_headerPtr++;
 
     m_rssiAccum = 0U;
     m_rssiCount = 0U;
 
     m_rxState = DSRXS_HEADER;
+
     return;
   }
 
-  // Exact matching of the data sync bit sequence
-  if (countBits32((m_patternBuffer & DATA_SYNC_MASK) ^ DATA_SYNC_DATA) == 0U) {
+  // Fuzzy matching of the data sync bit sequence
+  ret = correlateDataSync();
+  if (ret) {
     DEBUG1("DStarRX: found data sync in None");
 
     io.setDecode(true);
     io.setADCDetection(true);
 
-    // Suppress RSSI on the dummy sync message
-    m_rssiAccum = 0U;
-    m_rssiCount = 0U;
-
-    ::memcpy(m_rxBuffer, DSTAR_DATA_SYNC_BYTES, DSTAR_DATA_LENGTH_BYTES);
-    writeRSSIData(m_rxBuffer);
-
-    ::memset(m_rxBuffer, 0x00U, DSTAR_DATA_LENGTH_BYTES + 2U);
-    m_rxBufferBits = 0U;
-
-    m_dataBits  = MAX_SYNC_BITS;
-    m_rxState   = DSRXS_DATA;
-    return;
+    m_rxState = DSRXS_DATA;
   }
 }
 
-void CDStarRX::processHeader(bool bit)
+void CDStarRX::processHeader(q15_t sample)
 {
-  m_patternBuffer <<= 1;
-  if (bit)
-    m_patternBuffer |= 0x01U;
+  if (m_countdown > 0U) {
+    correlateFrameSync();
+    m_countdown--;
+  }
 
-  WRITE_BIT2(m_rxBuffer, m_rxBufferBits, bit);
-  m_rxBufferBits++;
+  m_headerBuffer[m_headerPtr] = sample;
+  m_headerPtr++;
 
   // A full FEC header
-  if (m_rxBufferBits == DSTAR_FEC_SECTION_LENGTH_BITS) {
-    // Process the scrambling, interleaving and FEC, then return if the chcksum was correct
-    unsigned char header[DSTAR_HEADER_LENGTH_BYTES];
-    bool ok = rxHeader(m_rxBuffer, header);
-    if (ok) {
+  if (m_headerPtr == (DSTAR_FEC_SECTION_LENGTH_SAMPLES + DSTAR_RADIO_SYMBOL_LENGTH)) {
+    uint8_t buffer[DSTAR_FEC_SECTION_LENGTH_BYTES];
+    samplesToBits(m_headerBuffer, DSTAR_RADIO_SYMBOL_LENGTH, DSTAR_FEC_SECTION_LENGTH_SYMBOLS, buffer, DSTAR_FEC_SECTION_LENGTH_SAMPLES);
+
+    // Process the scrambling, interleaving and FEC, then return true if the chcksum was correct
+    uint8_t header[DSTAR_HEADER_LENGTH_BYTES];
+    bool ok = rxHeader(buffer, header);
+    if (!ok) {
+      // The checksum failed, return to looking for syncs
+      m_rxState = DSRXS_NONE;
+      m_maxFrameCorr = 0;
+      m_maxDataCorr  = 0;
+    } else {
       io.setDecode(true);
       io.setADCDetection(true);
 
       writeRSSIHeader(header);
-
-      ::memset(m_rxBuffer, 0x00U, DSTAR_DATA_LENGTH_BYTES + 2U);
-      m_rxBufferBits = 0U;
-
-      m_rxState  = DSRXS_DATA;
-      m_dataBits = MAX_SYNC_BITS;
-    } else {
-      // The checksum failed, return to looking for syncs
-      m_rxState = DSRXS_NONE;
     }
   }
+
+  // Ready to start the first data section
+  if (m_headerPtr == (DSTAR_FEC_SECTION_LENGTH_SAMPLES + 2U * DSTAR_RADIO_SYMBOL_LENGTH)) {
+    m_frameCount = 0U;
+    m_dataPtr    = 0U;
+
+    m_startPtr   = 476U;
+    m_syncPtr    = 471U;
+    m_maxSyncPtr = 472U;
+    m_minSyncPtr = 470U;
+
+    DEBUG5("DStarRX: calc start/sync/max/min", m_startPtr, m_syncPtr, m_maxSyncPtr, m_minSyncPtr);
+
+    m_rxState = DSRXS_DATA;
+  }
 }
 
-void CDStarRX::processData(bool bit)
+void CDStarRX::processData()
 {
-  m_patternBuffer <<= 1;
-  if (bit)
-    m_patternBuffer |= 0x01U;
-
-  WRITE_BIT2(m_rxBuffer, m_rxBufferBits, bit);
-  m_rxBufferBits++;
-
   // Fuzzy matching of the end frame sequences
-  if (countBits32((m_patternBuffer & END_SYNC_MASK) ^ END_SYNC_DATA) <= END_SYNC_ERRS) {
+  if (countBits32((m_bitBuffer[m_bitPtr] & DSTAR_END_SYNC_MASK) ^ DSTAR_END_SYNC_DATA) <= END_SYNC_ERRS) {
     DEBUG1("DStarRX: Found end sync in Data");
 
     io.setDecode(false);
@@ -401,35 +403,24 @@ void CDStarRX::processData(bool bit)
 
     serial.writeDStarEOT();
 
+    m_maxFrameCorr = 0;
+    m_maxDataCorr  = 0;
+
     m_rxState = DSRXS_NONE;
     return;
   }
 
   // Fuzzy matching of the data sync bit sequence
-  bool syncSeen = false;
-  if (m_rxBufferBits >= (DSTAR_DATA_LENGTH_BITS - 3U)) {
-    if (countBits32((m_patternBuffer & DATA_SYNC_MASK) ^ DATA_SYNC_DATA) <= DATA_SYNC_ERRS) {
-      m_rxBufferBits = DSTAR_DATA_LENGTH_BITS;
-      m_dataBits     = MAX_SYNC_BITS;
-      syncSeen       = true;
-    }
+  if (m_minSyncPtr < m_maxSyncPtr) {
+    if (m_dataPtr >= m_minSyncPtr && m_dataPtr <= m_maxSyncPtr)
+      correlateDataSync();
+  } else {
+    if (m_dataPtr >= m_minSyncPtr || m_dataPtr <= m_maxSyncPtr)
+      correlateDataSync();
   }
 
-  // Check to see if the sync is arriving late
-  if (m_rxBufferBits == DSTAR_DATA_LENGTH_BITS && !syncSeen) {
-    for (uint8_t i = 1U; i <= 3U; i++) {
-      uint32_t syncMask = DATA_SYNC_MASK >> i;
-      uint32_t syncData = DATA_SYNC_DATA >> i;
-      if (countBits32((m_patternBuffer & syncMask) ^ syncData) <= DATA_SYNC_ERRS) {
-        m_rxBufferBits -= i;
-        break;
-      }
-    }
-  }
-
-  m_dataBits--;
-
-  if (m_dataBits == 0U) {
+  // We've not seen a data sync for too long, signal RXLOST and change to RX_NONE
+  if (m_frameCount >= MAX_FRAMES) {
     DEBUG1("DStarRX: data sync timed out, lost lock");
 
     io.setDecode(false);
@@ -437,24 +428,35 @@ void CDStarRX::processData(bool bit)
 
     serial.writeDStarLost();
 
+    m_maxFrameCorr = 0;
+    m_maxDataCorr  = 0;
+
     m_rxState = DSRXS_NONE;
     return;
   }
 
-  // Send a data frame to the host if the required number of bits have been received, or if a data sync has been seen
-  if (m_rxBufferBits == DSTAR_DATA_LENGTH_BITS) {
-    if (syncSeen) {
-      m_rxBuffer[9U]  = DSTAR_DATA_SYNC_BYTES[9U];
-      m_rxBuffer[10U] = DSTAR_DATA_SYNC_BYTES[10U];
-      m_rxBuffer[11U] = DSTAR_DATA_SYNC_BYTES[11U];
-	    writeRSSIData(m_rxBuffer);
-    } else {
-	    serial.writeDStarData(m_rxBuffer, DSTAR_DATA_LENGTH_BYTES);
-	  }
+  // Send a data frame to the host if the required number of bits have been received
+  if (m_dataPtr == m_maxSyncPtr) {
+    uint8_t buffer[DSTAR_DATA_LENGTH_BYTES + 2U];
+    samplesToBits(m_dataBuffer, m_startPtr, DSTAR_DATA_LENGTH_SYMBOLS, buffer, DSTAR_DATA_LENGTH_SAMPLES);
 
-    // Start the next frame
-    ::memset(m_rxBuffer, 0x00U, DSTAR_DATA_LENGTH_BYTES + 2U);
-    m_rxBufferBits = 0U;
+    if ((m_frameCount % 21U) == 0U) {
+      if (m_frameCount == 0U) {
+        buffer[9U]  = DSTAR_DATA_SYNC_BYTES[9U];
+        buffer[10U] = DSTAR_DATA_SYNC_BYTES[10U];
+        buffer[11U] = DSTAR_DATA_SYNC_BYTES[11U];
+        DEBUG5("DStarRX: found start/sync/max/min", m_startPtr, m_syncPtr, m_maxSyncPtr, m_minSyncPtr);
+      }
+
+      writeRSSIData(buffer);
+    } else {
+      serial.writeDStarData(buffer, DSTAR_DATA_LENGTH_BYTES);
+    }
+
+    m_frameCount++;
+
+    m_maxFrameCorr = 0;
+    m_maxDataCorr  = 0;
   }
 }
 
@@ -500,6 +502,105 @@ void CDStarRX::writeRSSIData(unsigned char* data)
   m_rssiCount = 0U;
 }
 
+bool CDStarRX::correlateFrameSync()
+{
+  if (countBits32((m_bitBuffer[m_bitPtr] & DSTAR_FRAME_SYNC_MASK) ^ DSTAR_FRAME_SYNC_DATA) <= FRAME_SYNC_ERRS) {
+    uint16_t ptr = m_dataPtr + DSTAR_DATA_LENGTH_SAMPLES - DSTAR_FRAME_SYNC_LENGTH_SAMPLES + DSTAR_RADIO_SYMBOL_LENGTH;
+    if (ptr >= DSTAR_DATA_LENGTH_SAMPLES)
+      ptr -= DSTAR_DATA_LENGTH_SAMPLES;
+
+    q31_t corr = 0;
+
+    for (uint8_t i = 0U; i < DSTAR_FRAME_SYNC_LENGTH_SYMBOLS; i++) {
+      q15_t val = m_dataBuffer[ptr];
+
+      if (DSTAR_FRAME_SYNC_SYMBOLS[i])
+        corr -= val;
+      else
+        corr += val;
+
+      ptr += DSTAR_RADIO_SYMBOL_LENGTH;
+      if (ptr >= DSTAR_DATA_LENGTH_SAMPLES)
+        ptr -= DSTAR_DATA_LENGTH_SAMPLES;
+    }
+
+    if (corr > m_maxFrameCorr) {
+      m_maxFrameCorr = corr;
+      m_headerPtr    = 0U;
+      return true;
+    }
+  }
+
+  return false;
+}
+
+bool CDStarRX::correlateDataSync()
+{
+  uint8_t maxErrs = 0U;
+  if (m_rxState == DSRXS_DATA)
+    maxErrs = DATA_SYNC_ERRS;
+
+  if (countBits32((m_bitBuffer[m_bitPtr] & DSTAR_DATA_SYNC_MASK) ^ DSTAR_DATA_SYNC_DATA) <= maxErrs) {
+    uint16_t ptr = m_dataPtr + DSTAR_DATA_LENGTH_SAMPLES - DSTAR_DATA_SYNC_LENGTH_SAMPLES + DSTAR_RADIO_SYMBOL_LENGTH;
+    if (ptr >= DSTAR_DATA_LENGTH_SAMPLES)
+      ptr -= DSTAR_DATA_LENGTH_SAMPLES;
+
+    q31_t corr = 0;
+
+    for (uint8_t i = 0U; i < DSTAR_DATA_SYNC_LENGTH_SYMBOLS; i++) {
+      q15_t val = m_dataBuffer[ptr];
+
+      if (DSTAR_DATA_SYNC_SYMBOLS[i])
+        corr -= val;
+      else
+        corr += val;
+
+      ptr += DSTAR_RADIO_SYMBOL_LENGTH;
+      if (ptr >= DSTAR_DATA_LENGTH_SAMPLES)
+        ptr -= DSTAR_DATA_LENGTH_SAMPLES;
+    }
+
+    if (corr > m_maxDataCorr) {
+      m_maxDataCorr = corr;
+      m_frameCount  = 0U;
+
+      m_syncPtr    = m_dataPtr;
+
+      m_startPtr   = m_dataPtr + DSTAR_RADIO_SYMBOL_LENGTH;
+      if (m_startPtr >= DSTAR_DATA_LENGTH_SAMPLES)
+        m_startPtr -= DSTAR_DATA_LENGTH_SAMPLES;
+
+      m_maxSyncPtr = m_syncPtr + 1U;
+      if (m_maxSyncPtr >= DSTAR_DATA_LENGTH_SAMPLES)
+        m_maxSyncPtr -= DSTAR_DATA_LENGTH_SAMPLES;
+
+      m_minSyncPtr = m_syncPtr + DSTAR_DATA_LENGTH_SAMPLES - 1U;
+      if (m_minSyncPtr >= DSTAR_DATA_LENGTH_SAMPLES)
+        m_minSyncPtr -= DSTAR_DATA_LENGTH_SAMPLES;
+
+      return true;
+    }
+  }
+
+  return false;
+}
+
+void CDStarRX::samplesToBits(const q15_t* inBuffer, uint16_t start, uint16_t count, uint8_t* outBuffer, uint16_t limit)
+{
+  for (uint16_t i = 0U; i < count; i++) {
+    q15_t sample = inBuffer[start];
+
+    if (sample < 0)
+      WRITE_BIT2(outBuffer, i, true);
+    else
+      WRITE_BIT2(outBuffer, i, false);
+
+    start += DSTAR_RADIO_SYMBOL_LENGTH;
+    if (start >= limit)
+      start -= limit;
+  }
+}
+
 bool CDStarRX::rxHeader(uint8_t* in, uint8_t* out)
 {
   int i;

DStarRX.h

@@ -1,5 +1,5 @@
 /*
- *   Copyright (C) 2015,2016,2017 by Jonathan Naylor G4KLX
+ *   Copyright (C) 2015,2016,2017,2020 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
@@ -37,13 +37,21 @@ public:
   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];
@@ -54,9 +62,12 @@ private:
   uint32_t     m_rssiAccum;
   uint16_t     m_rssiCount;
   
-  void    processNone(bool bit);
-  void    processHeader(bool bit);
-  void    processData(bool bit);
+  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);

DStarTX.cpp

@@ -198,7 +198,7 @@ m_txDelay(60U)       // 100ms
 {
   ::memset(m_modState, 0x00U, 20U * sizeof(q15_t));
 
-  m_modFilter.L           = DSTAR_RADIO_BIT_LENGTH;
+  m_modFilter.L           = DSTAR_RADIO_SYMBOL_LENGTH;
   m_modFilter.phaseLength = GAUSSIAN_0_35_FILTER_PHASE_LEN;
   m_modFilter.pCoeffs     = GAUSSIAN_0_35_FILTER;
   m_modFilter.pState      = m_modState;
@@ -252,8 +252,8 @@ void CDStarTX::process()
     m_buffer.get();
 
     for (uint8_t j = 0U; j < 3U; j++) {
-      for (uint8_t i = 0U; i < DSTAR_EOT_LENGTH_BYTES; i++)
-        m_poBuffer[m_poLen++] = DSTAR_EOT_BYTES[i];
+      for (uint8_t i = 0U; i < DSTAR_END_SYNC_LENGTH_BYTES; i++)
+        m_poBuffer[m_poLen++] = DSTAR_END_SYNC_BYTES[i];
     }
      
     m_poPtr = 0U;
@@ -262,11 +262,11 @@ void CDStarTX::process()
   if (m_poLen > 0U) {
     uint16_t space = io.getSpace();
     
-    while (space > (8U * DSTAR_RADIO_BIT_LENGTH)) {
+    while (space > (8U * DSTAR_RADIO_SYMBOL_LENGTH)) {
       uint8_t c = m_poBuffer[m_poPtr++];
       writeByte(c);
 
-      space -= 8U * DSTAR_RADIO_BIT_LENGTH;
+      space -= 8U * DSTAR_RADIO_SYMBOL_LENGTH;
       
       if (m_poPtr >= m_poLen) {
         m_poPtr = 0U;
@@ -412,7 +412,7 @@ void CDStarTX::txHeader(const uint8_t* in, uint8_t* out) const
 void CDStarTX::writeByte(uint8_t c)
 {
   q15_t inBuffer[8U];
-  q15_t outBuffer[DSTAR_RADIO_BIT_LENGTH * 8U];
+  q15_t outBuffer[DSTAR_RADIO_SYMBOL_LENGTH * 8U];
 
   uint8_t mask = 0x01U;
 
@@ -427,7 +427,7 @@ void CDStarTX::writeByte(uint8_t c)
 
   ::arm_fir_interpolate_q15(&m_modFilter, inBuffer, outBuffer, 8U);
   
-  io.write(STATE_DSTAR, outBuffer, DSTAR_RADIO_BIT_LENGTH * 8U);
+  io.write(STATE_DSTAR, outBuffer, DSTAR_RADIO_SYMBOL_LENGTH * 8U);
 }
 
 void CDStarTX::setTXDelay(uint8_t delay)

FM.cpp

@@ -20,6 +20,14 @@
 #include "Globals.h"
 #include "FM.h"
 
+/*
+ * Access Mode values are:
+ *   0 - Carrier access with COS
+ *   1 - CTCSS only access without COS
+ *   2 - CTCSS only access with COS
+ *   3 - CTCSS only access with COS to start, then carrier access with COS
+ */
+
 CFM::CFM() :
 m_callsign(),
 m_rfAck(),
@@ -37,11 +45,12 @@ m_kerchunkTimer(),
 m_ackMinTimer(),
 m_ackDelayTimer(),
 m_hangTimer(),
+m_reverseTimer(),
 m_filterStage1(  724,   1448,   724, 32768, -37895, 21352),//3rd order Cheby Filter 300 to 2700Hz, 0.2dB passband ripple, sampling rate 24kHz
 m_filterStage2(32768,      0,-32768, 32768, -50339, 19052),
 m_filterStage3(32768, -65536, 32768, 32768, -64075, 31460),
 m_blanking(),
-m_useCOS(true),
+m_accessMode(1U),
 m_cosInvert(false),
 m_rfAudioBoost(1U),
 m_downsampler(128U),//Size might need adjustement
@@ -49,17 +58,15 @@ m_rxLevel(1),
 m_inputRB(4800U),   // 200ms of audio
 m_outputRB(2400U)   // 100ms of audio
 {
+  m_reverseTimer.setTimeout(0U, 150U);
+
   insertDelay(100U);
 }
 
 void CFM::samples(bool cos, const q15_t* samples, uint8_t length)
 {
-  if (m_useCOS) {
-    if (m_cosInvert)
-      cos = !cos;
-  } else {
-    cos = true;
-  }
+  if (m_cosInvert)
+    cos = !cos;
 
   clock(length);
 
@@ -68,36 +75,56 @@ void CFM::samples(bool cos, const q15_t* samples, uint8_t length)
     // ARMv7-M has hardware integer division 
     q15_t currentSample = q15_t((q31_t(samples[i]) << 8) / m_rxLevel);
 
-    uint8_t ctcssState = m_ctcssRX.process(currentSample);
+    switch (m_accessMode) {
+      case 0U:
+        stateMachine(cos);
+        break;
 
-    if (!m_useCOS) {
-      // Delay the audio by 100ms to better match the CTCSS detector output
-      m_inputRB.put(currentSample);
-      m_inputRB.get(currentSample);
-    }
+      case 1U: {
+          uint8_t ctcssState = m_ctcssRX.process(currentSample);
 
-    if (CTCSS_NOT_READY(ctcssState) && m_modemState != STATE_FM) {
-      //Not enough samples to determine if you have CTCSS, just carry on
-      continue;
-    } else if (CTCSS_READY(ctcssState) && m_modemState != STATE_FM) {
-      //we had enough samples for CTCSS and we are in some other mode than FM
-      bool validCTCSS = CTCSS_VALID(ctcssState);
-      stateMachine(validCTCSS && cos);
-      if (m_modemState != STATE_FM)
-        continue;
-    } else if (CTCSS_READY(ctcssState) && m_modemState == STATE_FM) {
-      //We had enough samples for CTCSS and we are in FM mode, trigger the state machine
-      bool validCTCSS = CTCSS_VALID(ctcssState);
-      stateMachine(validCTCSS && cos);
-      if (m_modemState != STATE_FM)
+          // Delay the audio by 100ms to better match the CTCSS detector output
+          m_inputRB.put(currentSample);
+          m_inputRB.get(currentSample);
+
+          if (CTCSS_NOT_READY(ctcssState) && m_modemState != STATE_FM) {
+            // Not enough samples to determine if you have CTCSS, just carry on
+          } else {
+            bool validCTCSS = CTCSS_VALID(ctcssState);
+            stateMachine(validCTCSS);
+          }
+        }
+        break;
+
+      case 2U: {
+          uint8_t ctcssState = m_ctcssRX.process(currentSample);
+          if (CTCSS_NOT_READY(ctcssState) && m_modemState != STATE_FM) {
+            // Not enough samples to determine if you have CTCSS, just carry on
+          } else {
+            bool validCTCSS = CTCSS_VALID(ctcssState);
+            stateMachine(validCTCSS && cos);
+          }
+        }
+        break;
+
+      default: {
+          uint8_t ctcssState = m_ctcssRX.process(currentSample);
+          if (CTCSS_NOT_READY(ctcssState) && m_modemState != STATE_FM) {
+            // Not enough samples to determine if you have CTCSS, just carry on
+          } else if (CTCSS_READY(ctcssState) && m_modemState != STATE_FM) {
+            // We had enough samples for CTCSS and we are in some other mode than FM
+            bool validCTCSS = CTCSS_VALID(ctcssState);
+            stateMachine(validCTCSS && cos);
+          } else {
+            stateMachine(cos);
+          }
+        }
         break;
-    } else if (CTCSS_NOT_READY(ctcssState) && m_modemState == STATE_FM && i == length - 1) {
-      //Not enough samples for CTCSS but we already are in FM, trigger the state machine
-      //but do not trigger the state machine on every single sample, save CPU!
-      bool validCTCSS = CTCSS_VALID(ctcssState);
-      stateMachine(validCTCSS && cos);
     }
 
+    if (m_modemState != STATE_FM)
+      continue;
+
     // Only let audio through when relaying audio
     if (m_state == FS_RELAYING || m_state == FS_KERCHUNK) {  
       // m_downsampler.addSample(currentSample);
@@ -117,15 +144,14 @@ void CFM::samples(bool cos, const q15_t* samples, uint8_t length)
         currentSample += m_callsign.getLowAudio();
     }
 
+    currentSample = m_filterStage3.filter(m_filterStage2.filter(m_filterStage1.filter(currentSample)));
+
     if (!m_callsign.isRunning() && !m_rfAck.isRunning())
       currentSample += m_timeoutTone.getAudio();
 
-    currentSample = m_filterStage3.filter(m_filterStage2.filter(m_filterStage1.filter(currentSample)));
+    currentSample += m_ctcssTX.getAudio(m_reverseTimer.isRunning());
 
-    currentSample += m_ctcssTX.getAudio();
-
-    if (m_modemState == STATE_FM)
-      m_outputRB.put(currentSample);
+    m_outputRB.put(currentSample);
   }
 }
 
@@ -146,6 +172,7 @@ void CFM::reset()
   m_ackMinTimer.stop();
   m_ackDelayTimer.stop();
   m_hangTimer.stop();
+  m_reverseTimer.stop();
 
   m_ctcssRX.reset();
   m_rfAck.stop();
@@ -183,10 +210,10 @@ uint8_t CFM::setAck(const char* rfAck, uint8_t speed, uint16_t frequency, uint8_
   return m_rfAck.setParams(rfAck, speed, frequency, level, level);
 }
 
-uint8_t CFM::setMisc(uint16_t timeout, uint8_t timeoutLevel, uint8_t ctcssFrequency, uint8_t ctcssHighThreshold, uint8_t ctcssLowThreshold, uint8_t ctcssLevel, uint8_t kerchunkTime, uint8_t hangTime, bool useCOS, bool cosInvert, uint8_t rfAudioBoost, uint8_t maxDev, uint8_t rxLevel)
+uint8_t CFM::setMisc(uint16_t timeout, uint8_t timeoutLevel, uint8_t ctcssFrequency, uint8_t ctcssHighThreshold, uint8_t ctcssLowThreshold, uint8_t ctcssLevel, uint8_t kerchunkTime, uint8_t hangTime, uint8_t accessMode, bool cosInvert, uint8_t rfAudioBoost, uint8_t maxDev, uint8_t rxLevel)
 {
-  m_useCOS    = useCOS;
-  m_cosInvert = cosInvert;
+  m_accessMode = accessMode;
+  m_cosInvert  = cosInvert;
 
   m_rfAudioBoost = q15_t(rfAudioBoost);
 
@@ -235,14 +262,20 @@ void CFM::stateMachine(bool validSignal)
   }
 
   if (m_state == FS_LISTENING && m_modemState == STATE_FM) {
-    DEBUG1("Change to STATE_IDLE");
-    m_modemState = STATE_IDLE;
-    m_callsignTimer.stop();
-    m_timeoutTimer.stop();
-    m_kerchunkTimer.stop();
-    m_ackMinTimer.stop();
-    m_ackDelayTimer.stop();
-    m_hangTimer.stop();
+    if (!m_callsign.isWanted() && !m_rfAck.isWanted() && !m_reverseTimer.isRunning())
+      m_reverseTimer.start();
+
+    if (!m_callsign.isWanted() && !m_rfAck.isWanted() && m_reverseTimer.isRunning() && m_reverseTimer.hasExpired()) {
+      DEBUG1("Change to STATE_IDLE");
+      m_modemState = STATE_IDLE;
+      m_callsignTimer.stop();
+      m_timeoutTimer.stop();
+      m_kerchunkTimer.stop();
+      m_ackMinTimer.stop();
+      m_ackDelayTimer.stop();
+      m_hangTimer.stop();
+      m_reverseTimer.stop();
+    }
   }
 }
 
@@ -255,6 +288,7 @@ void CFM::clock(uint8_t length)
   m_ackMinTimer.clock(length);
   m_ackDelayTimer.clock(length);
   m_hangTimer.clock(length);
+  m_reverseTimer.clock(length);
 }
 
 void CFM::listeningState(bool validSignal)
@@ -278,6 +312,10 @@ void CFM::listeningState(bool validSignal)
     beginRelaying();
 
     m_callsignTimer.start();
+    m_reverseTimer.stop();
+
+    io.setDecode(true);
+    io.setADCDetection(true);
 
     DEBUG1("Change to STATE_FM");
     m_modemState = STATE_FM;
@@ -297,6 +335,9 @@ void CFM::kerchunkState(bool validSignal)
       }
     }
   } else {
+    io.setDecode(false);
+    io.setADCDetection(false);
+
     DEBUG1("State to LISTENING");
     m_state = FS_LISTENING;
     m_kerchunkTimer.stop();
@@ -317,6 +358,9 @@ void CFM::relayingState(bool validSignal)
       m_timeoutTone.start();
     }
   } else {
+    io.setDecode(false);
+    io.setADCDetection(false);
+
     DEBUG1("State to RELAYING_WAIT");
     m_state = FS_RELAYING_WAIT;
     m_ackDelayTimer.start();
@@ -331,6 +375,9 @@ void CFM::relayingState(bool validSignal)
 void CFM::relayingWaitState(bool validSignal)
 {
   if (validSignal) {
+    io.setDecode(true);
+    io.setADCDetection(true);
+
     DEBUG1("State to RELAYING");
     m_state = FS_RELAYING;
     m_ackDelayTimer.stop();
@@ -366,6 +413,9 @@ void CFM::relayingWaitState(bool validSignal)
 void CFM::hangState(bool validSignal)
 {
   if (validSignal) {
+    io.setDecode(true);
+    io.setADCDetection(true);
+
     DEBUG1("State to RELAYING");
     m_state = FS_RELAYING;
     DEBUG1("Stop ack");
@@ -393,6 +443,9 @@ void CFM::hangState(bool validSignal)
 void CFM::timeoutState(bool validSignal)
 {
   if (!validSignal) {
+    io.setDecode(false);
+    io.setADCDetection(false);
+
     DEBUG1("State to TIMEOUT_WAIT");
     m_state = FS_TIMEOUT_WAIT;
     m_ackDelayTimer.start();
@@ -407,6 +460,9 @@ void CFM::timeoutState(bool validSignal)
 void CFM::timeoutWaitState(bool validSignal)
 {
   if (validSignal) {
+    io.setDecode(true);
+    io.setADCDetection(true);
+
     DEBUG1("State to TIMEOUT");
     m_state = FS_TIMEOUT;
     m_ackDelayTimer.stop();

FM.h

@@ -56,7 +56,7 @@ public:
 
   uint8_t setCallsign(const char* callsign, uint8_t speed, uint16_t frequency, uint8_t time, uint8_t holdoff, uint8_t highLevel, uint8_t lowLevel, bool callsignAtStart, bool callsignAtEnd, bool callsignAtLatch);
   uint8_t setAck(const char* rfAck, uint8_t speed, uint16_t frequency, uint8_t minTime, uint16_t delay, uint8_t level);
-  uint8_t setMisc(uint16_t timeout, uint8_t timeoutLevel, uint8_t ctcssFrequency, uint8_t ctcssHighThreshold, uint8_t ctcssLowThreshold, uint8_t ctcssLevel, uint8_t kerchunkTime, uint8_t hangTime, bool useCOS, bool cosInvert, uint8_t rfAudioBoost, uint8_t maxDev, uint8_t rxLevel);
+  uint8_t setMisc(uint16_t timeout, uint8_t timeoutLevel, uint8_t ctcssFrequency, uint8_t ctcssHighThreshold, uint8_t ctcssLowThreshold, uint8_t ctcssLevel, uint8_t kerchunkTime, uint8_t hangTime, uint8_t accessMode, bool cosInvert, uint8_t rfAudioBoost, uint8_t maxDev, uint8_t rxLevel);
 
 private:
   CFMKeyer             m_callsign;
@@ -75,11 +75,12 @@ private:
   CFMTimer             m_ackMinTimer;
   CFMTimer             m_ackDelayTimer;
   CFMTimer             m_hangTimer;
+  CFMTimer             m_reverseTimer;
   CFMDirectFormI       m_filterStage1;
   CFMDirectFormI       m_filterStage2;
   CFMDirectFormI       m_filterStage3;
   CFMBlanking          m_blanking;
-  bool                 m_useCOS;
+  uint8_t              m_accessMode;
   bool                 m_cosInvert;
   q15_t                m_rfAudioBoost;
   CFMDownsampler       m_downsampler;

FMCTCSSTX.cpp

@@ -115,11 +115,14 @@ uint8_t CFMCTCSSTX::setParams(uint8_t frequency, uint8_t level)
   return 0U;
 }
 
-q15_t CFMCTCSSTX::getAudio()
+q15_t CFMCTCSSTX::getAudio(bool reverse)
 {
   q15_t sample = m_values[m_n++];
-  if(m_n >= m_length)
+  if (m_n >= m_length)
     m_n = 0U;
   
-  return sample;
+  if (reverse)
+    return -sample;
+  else
+    return sample;
 }

FMCTCSSTX.h

@@ -27,7 +27,7 @@ public:
 
   uint8_t setParams(uint8_t frequency, uint8_t level);
 
-  q15_t getAudio();
+  q15_t getAudio(bool reverse);
 
 private:
   q15_t*   m_values;

FMKeyer.cpp

@@ -205,6 +205,11 @@ void CFMKeyer::stop()
   m_audioPos = 0U;
 }
 
+bool CFMKeyer::isWanted() const
+{
+  return m_wanted;
+}
+
 bool CFMKeyer::isRunning() const
 {
   return m_poPos > 0U || m_dotPos > 0U || m_audioPos > 0U;

FMKeyer.h

@@ -35,6 +35,8 @@ public:
 
   bool isRunning() const;
 
+  bool isWanted() const;
+
 private:
   bool     m_wanted;
   uint8_t  m_poBuffer[1000U];

FMTimeout.cpp

@@ -36,24 +36,22 @@ m_n(0U)
 
 void CFMTimeout::setParams(uint8_t level)
 {
-  m_level = q15_t(level * 128);
+  m_level = q15_t(level * 5);
 }
 
 q15_t CFMTimeout::getAudio()
 {
-  q15_t sample = 0U;
+  q15_t sample = 0;
   if (!m_running)
     return sample;
 
-  if (m_pos > 12000U) {
-    q31_t sample = BUSY_AUDIO[m_n] * m_level;
-    sample = q15_t(__SSAT((sample >> 15), 16));
+  if (m_pos >= 12000U) {
+    q31_t sample31 = BUSY_AUDIO[m_n] * m_level;
+    sample = q15_t(__SSAT((sample31 >> 15), 16));
 
     m_n++;
     if (m_n >= BUSY_AUDIO_LEN)
       m_n = 0U;
-  } else {
-    sample = 0U;
   }
 
   m_pos++;

IO.cpp

@@ -83,6 +83,7 @@ m_pocsagTXLevel(128 * 128),
 m_fmTXLevel(128 * 128),
 m_rxDCOffset(DC_OFFSET),
 m_txDCOffset(DC_OFFSET),
+m_useCOSAsLockout(false),
 m_ledCount(0U),
 m_ledValue(true),
 m_detect(false),
@@ -132,7 +133,7 @@ void CIO::selfTest()
 {
   bool ledValue = false;
 
-  for (uint8_t i = 0; i < 6; i++) {
+  for (uint8_t i = 0U; i < 6U; i++) {
     ledValue = !ledValue;
 
     // We exclude PTT to avoid trigger the transmitter
@@ -143,21 +144,34 @@ void CIO::selfTest()
     setDMRInt(ledValue);
     setYSFInt(ledValue);
     setP25Int(ledValue);
+#if !defined(USE_ALTERNATE_NXDN_LEDS)
     setNXDNInt(ledValue);
+#endif
+#if !defined(USE_ALTERNATE_POCSAG_LEDS)
     setPOCSAGInt(ledValue);
+#endif
+#if !defined(USE_ALTERNATE_FM_LEDS)
     setFMInt(ledValue);
+#endif
 #endif
     delayInt(250);
   }
 
 #if defined(MODE_LEDS)
-  setDStarInt(true);
+  setDStarInt(false);
   setDMRInt(false);
   setYSFInt(false);
   setP25Int(false);
+#if !defined(USE_ALTERNATE_NXDN_LEDS)
   setNXDNInt(false);
+#endif
+#if !defined(USE_ALTERNATE_POCSAG_LEDS)
   setPOCSAGInt(false);
+#endif
+#if !defined(USE_ALTERNATE_FM_LEDS)
   setFMInt(false);
+#endif
+  setDStarInt(true);
 
   delayInt(250);
   setDMRInt(true);
@@ -219,7 +233,7 @@ void CIO::start()
 
   m_started = true;
 
-  setMode();
+  setMode(STATE_IDLE);
 }
 
 void CIO::process()
@@ -231,8 +245,7 @@ void CIO::process()
       if (m_modemState == STATE_DSTAR || m_modemState == STATE_DMR || m_modemState == STATE_YSF || m_modemState == STATE_P25 || m_modemState == STATE_NXDN || m_modemState == STATE_POCSAG) {
         if (m_modemState == STATE_DMR && m_tx)
           dmrTX.setStart(false);
-        m_modemState = STATE_IDLE;
-        setMode();
+        setMode(STATE_IDLE);
       }
 
       m_watchdog = 0U;
@@ -256,9 +269,8 @@ void CIO::process()
     return;
   }
 
-#if defined(USE_COS_AS_LOCKOUT)
-  m_lockout = getCOSInt();
-#endif
+  if (m_useCOSAsLockout)
+    m_lockout = getCOSInt();
 
   // Switch off the transmitter if needed
   if (m_txBuffer.getData() == 0U && m_tx) {
@@ -516,20 +528,37 @@ void CIO::setADCDetection(bool detect)
   m_detect = detect;
 }
 
-void CIO::setMode()
+void CIO::setMode(MMDVM_STATE state)
 {
+  if (state == m_modemState)
+    return;
+
 #if defined(MODE_LEDS)
-  setDStarInt(m_modemState == STATE_DSTAR);
-  setDMRInt(m_modemState   == STATE_DMR);
-  setYSFInt(m_modemState   == STATE_YSF);
-  setP25Int(m_modemState   == STATE_P25);
-  setNXDNInt(m_modemState  == STATE_NXDN);
-  setPOCSAGInt(m_modemState  == STATE_POCSAG);
-  setFMInt(m_modemState == STATE_FM);
+  switch (m_modemState) {
+    case STATE_DSTAR:  setDStarInt(false);  break;
+    case STATE_DMR:    setDMRInt(false);    break;
+    case STATE_YSF:    setYSFInt(false);    break;
+    case STATE_P25:    setP25Int(false);    break;
+    case STATE_NXDN:   setNXDNInt(false);   break;
+    case STATE_POCSAG: setPOCSAGInt(false); break;
+    case STATE_FM:     setFMInt(false);     break;
+  }
+
+  switch (state) {
+    case STATE_DSTAR:  setDStarInt(true);  break;
+    case STATE_DMR:    setDMRInt(true);    break;
+    case STATE_YSF:    setYSFInt(true);    break;
+    case STATE_P25:    setP25Int(true);    break;
+    case STATE_NXDN:   setNXDNInt(true);   break;
+    case STATE_POCSAG: setPOCSAGInt(true); break;
+    case STATE_FM:     setFMInt(true);     break;
+  }
 #endif
+
+  m_modemState = state;
 }
 
-void CIO::setParameters(bool rxInvert, bool txInvert, bool pttInvert, uint8_t rxLevel, uint8_t cwIdTXLevel, uint8_t dstarTXLevel, uint8_t dmrTXLevel, uint8_t ysfTXLevel, uint8_t p25TXLevel, uint8_t nxdnTXLevel, uint8_t pocsagTXLevel, uint8_t fmTXLevel, int16_t txDCOffset, int16_t rxDCOffset)
+void CIO::setParameters(bool rxInvert, bool txInvert, bool pttInvert, uint8_t rxLevel, uint8_t cwIdTXLevel, uint8_t dstarTXLevel, uint8_t dmrTXLevel, uint8_t ysfTXLevel, uint8_t p25TXLevel, uint8_t nxdnTXLevel, uint8_t pocsagTXLevel, uint8_t fmTXLevel, int16_t txDCOffset, int16_t rxDCOffset, bool useCOSAsLockout)
 {
   m_pttInvert = pttInvert;
 
@@ -545,6 +574,8 @@ void CIO::setParameters(bool rxInvert, bool txInvert, bool pttInvert, uint8_t rx
 
   m_rxDCOffset   = DC_OFFSET + rxDCOffset;
   m_txDCOffset   = DC_OFFSET + txDCOffset;
+
+  m_useCOSAsLockout = useCOSAsLockout;
   
   if (rxInvert)
     m_rxLevel = -m_rxLevel;

IO.h

@@ -38,11 +38,11 @@ public:
 
   void setDecode(bool dcd);
   void setADCDetection(bool detect);
-  void setMode();
+  void setMode(MMDVM_STATE state);
   
   void interrupt();
 
-  void setParameters(bool rxInvert, bool txInvert, bool pttInvert, uint8_t rxLevel, uint8_t cwIdTXLevel, uint8_t dstarTXLevel, uint8_t dmrTXLevel, uint8_t ysfTXLevel, uint8_t p25TXLevel, uint8_t nxdnTXLevel, uint8_t pocsagTXLevel, uint8_t fmTXLevel, int16_t txDCOffset, int16_t rxDCOffset);
+  void setParameters(bool rxInvert, bool txInvert, bool pttInvert, uint8_t rxLevel, uint8_t cwIdTXLevel, uint8_t dstarTXLevel, uint8_t dmrTXLevel, uint8_t ysfTXLevel, uint8_t p25TXLevel, uint8_t nxdnTXLevel, uint8_t pocsagTXLevel, uint8_t fmTXLevel, int16_t txDCOffset, int16_t rxDCOffset, bool useCOSAsLockout);
 
   void getOverflow(bool& adcOverflow, bool& dacOverflow);
 
@@ -91,6 +91,8 @@ private:
   uint16_t             m_rxDCOffset;
   uint16_t             m_txDCOffset;
 
+  bool                 m_useCOSAsLockout;
+
   uint32_t             m_ledCount;
   bool                 m_ledValue;
 

IOPins.h

@@ -59,12 +59,21 @@
 #elif defined(STM32F4_DVM)
     #include "pins/pins_f4_stm32dvm_v3.h"
 
+#elif defined(STM32F7_DVM)
+    #include "pins/pins_f7_stm32dvm_v5.h"
+
 #elif defined(DRCC_DVM_NQF)
     #include "pins/pins_f4_drcc_nqf.h"
 
+#elif defined(DRCC_DVM_HHP446)
+    #include "pins/pins_f4_drcc_hhp446.h"
+
+#elif defined(STM32F4_EDA_405) || defined(STM32F4_EDA_446)
+    #include "pins/pins_f4_stm32eda.h"
+
 #else
     #error "A valid board type macro need to be defined."
 
 #endif
 
-#endif  //#ifndef _IO_PINS_H
+#endif  //#ifndef _IO_PINS_H

IOSTM_CMSIS.cpp

@@ -41,7 +41,6 @@ YSF      PB8    output
 P25      PB9    output
 NXDN     PB10   output
 POCSAG   PB11   output
-FM       PB12   output
 
 RX       PB0    analog input (ADC1_8)
 RSSI     PB1    analog input (ADC2_9)
@@ -85,9 +84,6 @@ USART1_RXD PA10  input (AF)
 #define PIN_POCSAG        11
 #define PORT_POCSAG       GPIOB
 #define BB_POCSAG         *((bitband_t)BITBAND_PERIPH(&PORT_POCSAG->ODR, PIN_POCSAG))
-#define PIN_FM            14
-#define PORT_FM           GPIOB
-#define BB_FM             *((bitband_t)BITBAND_PERIPH(&PORT_FM->ODR, PIN_FM))
 
 #define PIN_RX            0
 #define PIN_RX_ADC_CH     8
@@ -158,35 +154,16 @@ void GPIOConfigPin(GPIO_TypeDef *port_ptr, uint32_t pin, uint32_t mode_cnf_value
 #if defined(STM32F1_POG)
 void FancyLEDEffect()
 {
-  int ledCount = 10;
-
-  bitband_t foo[] = {&BB_LED, &BB_COSLED, &BB_PTT, &BB_DMR, &BB_DSTAR, &BB_YSF, &BB_P25,
-#if defined(USE_ALTERNATE_NXDN_LEDS)
-	NULL,
-#else
-	&BB_NXDN,
-#endif
-#if defined(USE_ALTERNATE_POCSAG_LEDS)
-	NULL,
-#else
-  	&BB_POCSAG,
-#endif
-#if defined(USE_ALTERNATE_FM_LEDS)
-	NULL};
-#else
-	&BB_FM};
-#endif
-
-  for(int i=0; i<ledCount; i++){
-    if(foo[i] != NULL)
-      *foo[i] = 0x01;
+  bitband_t foo[] = {&BB_LED, &BB_COSLED, &BB_PTT, &BB_DMR, &BB_DSTAR, &BB_YSF, &BB_P25};
+   
+  for(int i=0; i<7; i++){
+    *foo[i] = 0x01;
   }
   GPIOConfigPin(PORT_USART1_TXD, PIN_USART1_TXD, GPIO_CRL_MODE0_1);
   *((bitband_t)BITBAND_PERIPH(&PORT_USART1_TXD->ODR, PIN_USART1_TXD)) = 0x00;
   delay(SystemCoreClock/1000*100);
-  for(int i=0; i<ledCount; i++){
-    if(foo[i] != NULL)
-      *foo[i] = 0x00;
+  for(int i=0; i<7; i++){
+    *foo[i] = 0x00;
   }
   *((bitband_t)BITBAND_PERIPH(&PORT_USART1_TXD->ODR, PIN_USART1_TXD)) = 0x01;
   delay(SystemCoreClock/1000*20);
@@ -195,22 +172,18 @@ void FancyLEDEffect()
   *((bitband_t)BITBAND_PERIPH(&PORT_USART1_TXD->ODR, PIN_USART1_TXD)) = 0x01;
   
   *foo[0] = 0x01;
-  for(int i=1; i<ledCount; i++){
+  for(int i=1; i<7; i++){
     delay(SystemCoreClock/1000*10);
-    if (foo[i-1] != NULL)
-      *foo[i-1] = 0x00;
-    if (foo[i] != NULL)
-      *foo[i] = 0x01;
+    *foo[i-1] = 0x00;
+    *foo[i] = 0x01;
   }
-  for(int i=ledCount - 2; i>=0; i--) {
+  for(int i=5; i>=0; i--){
     delay(SystemCoreClock/1000*10);
-    if (foo[i+1] != NULL)
-      *foo[i+1] = 0x00;
-    if (foo[i] != NULL)
-      *foo[i] = 0x01;
+    *foo[i+1] = 0x00;
+    *foo[i] = 0x01;
   }
   delay(SystemCoreClock/1000*10);
-  *foo[0] = 0x00;
+  *foo[5+1-6] = 0x00;
   *((bitband_t)BITBAND_PERIPH(&PORT_USART1_TXD->ODR, PIN_USART1_TXD)) = 0x00;
   delay(SystemCoreClock/1000*10);
   *((bitband_t)BITBAND_PERIPH(&PORT_USART1_TXD->ODR, PIN_USART1_TXD)) = 0x01;
@@ -255,9 +228,6 @@ static inline void GPIOInit()
 #if !defined(USE_ALTERNATE_POCSAG_LEDS)
   GPIOConfigPin(PORT_POCSAG, PIN_POCSAG, GPIO_CRL_MODE0_1);
 #endif
-#if !defined(USE_ALTERNATE_FM_LEDS)
-  GPIOConfigPin(PORT_FM,     PIN_FM,     GPIO_CRL_MODE0_1);
-#endif
 
   GPIOConfigPin(PORT_RX, PIN_RX, 0);
 #if defined(SEND_RSSI_DATA)
@@ -495,8 +465,6 @@ void CIO::setFMInt(bool on)
 #if defined(USE_ALTERNATE_FM_LEDS)
   BB_DSTAR = !!on;
   BB_YSF   = !!on;
-#else
-  BB_FM = !!on;
 #endif
 }
 

Makefile

@@ -133,12 +133,18 @@ DEFS_PI_F722=-DUSE_HAL_DRIVER -DSTM32F722xx -DSTM32F7XX -DSTM32F722_PI -DHSE_VAL
 DEFS_F7M=-DUSE_HAL_DRIVER -DSTM32F722xx -DSTM32F7XX -DSTM32F722_F7M -DHSE_VALUE=$(OSC) -DMADEBYMAKEFILE
 # MMDVM_RPT_Hat F0DEI, DB9MAT, DF2ET board:
 DEFS_RPT_HAT=-DUSE_HAL_DRIVER -DSTM32F722xx -DSTM32F7XX -DSTM32F722_RPT_HAT -DHSE_VALUE=$(OSC) -DMADEBYMAKEFILE
-# STM32F4 DVM board:
+# RB STM32F4_DVM board:
 DEFS_DVM=-DUSE_STDPERIPH_DRIVER -DSTM32F4XX -DSTM32F446xx -DSTM32F4_DVM -DHSE_VALUE=$(OSC) -DMADEBYMAKEFILE
+# RB STM32F7 DVM board:
+DEFS_DVM722=-DUSE_HAL_DRIVER -DSTM32F722xx -DSTM32F7XX -DSTM32F7_DVM -DHSE_VALUE=$(OSC) -DMADEBYMAKEFILE
 # MMDVM_RPT_Hat BG4TGO, BG5HHP board:
 DEFS_RPT_HAT_TGO=-DUSE_STDPERIPH_DRIVER -DSTM32F4XX -DSTM32F40_41xxx -DSTM32F4_RPT_HAT_TGO -DHSE_VALUE=$(OSC) -DMADEBYMAKEFILE
 # DRCC_DVM BG7NQF board:
 DEFS_DRCC_DVM=-DUSE_STDPERIPH_DRIVER -DSTM32F4XX -DSTM32F446xx -DDRCC_DVM -DHSE_VALUE=$(OSC) -DMADEBYMAKEFILE
+# WA0EDA F405 MTR2K, MASTR3 board:
+DEFS_EDA_405=-DUSE_STDPERIPH_DRIVER -DSTM32F4XX -DSTM32F40_41xxx -DSTM32F4_EDA_405 -DHSE_VALUE=$(OSC) -DMADEBYMAKEFILE
+# WA0EDA F446 MTR2K, MASTR3 board:
+DEFS_EDA_446=-DUSE_STDPERIPH_DRIVER -DSTM32F4XX -DSTM32F446xx -DSTM32F4_EDA_446 -DHSE_VALUE=$(OSC) -DMADEBYMAKEFILE
 
 
 # Build compiler flags
@@ -155,7 +161,7 @@ LDFLAGS_F722 =-T stm32f722_link.ld $(MCFLAGS_F7) --specs=nosys.specs $(INCLUDES_
 # Common flags
 CFLAGS=-Os -ffunction-sections -fdata-sections -fno-builtin -Wno-implicit -DCUSTOM_NEW -DNO_EXCEPTIONS
 CXXFLAGS=-Os -fno-exceptions -ffunction-sections -fdata-sections -fno-builtin -fno-rtti -DCUSTOM_NEW -DNO_EXCEPTIONS
-LDFLAGS=-Os --specs=nano.specs
+LDFLAGS=-Os --specs=nano.specs -Wl,-Map=bin/mmdvm.map
 
 # Build Rules
 .PHONY: all release dis pi pi-f722 f4m nucleo f767 dvm drcc_nqf clean
@@ -218,17 +224,41 @@ f767: LDFLAGS+=$(LDFLAGS_F767)
 f767: release_f7
 
 dvm: GitVersion.h
-dvm: CFLAGS+=$(CFLAGS_F4) $(DEFS_DVM)
-dvm: CXXFLAGS+=$(CXXFLAGS_F4) $(DEFS_DVM)
+dvm: CFLAGS+=$(CFLAGS_F4) $(DEFS_DVM) -DDRCC_DVM_446
+dvm: CXXFLAGS+=$(CXXFLAGS_F4) $(DEFS_DVM) -DDRCC_DVM_446
 dvm: LDFLAGS+=$(LDFLAGS_F4)
 dvm: release_f4
 
+dvm722: GitVersion.h
+dvm722: CFLAGS+=$(CFLAGS_F7) $(DEFS_DVM722) -DDRCC_DVM_722
+dvm722: CXXFLAGS+=$(CXXFLAGS_F7) $(DEFS_DVM722) -DDRCC_DVM_722
+dvm722: LDFLAGS+=$(LDFLAGS_F722)
+dvm722: release_f7
+
 drcc_nqf: GitVersion.h
 drcc_nqf: CFLAGS+=$(CFLAGS_F4) $(DEFS_DRCC_DVM) -DDRCC_DVM_NQF
 drcc_nqf: CXXFLAGS+=$(CXXFLAGS_F4) $(DEFS_DRCC_DVM) -DDRCC_DVM_NQF
 drcc_nqf: LDFLAGS+=$(LDFLAGS_F4)
 drcc_nqf: release_f4
 
+hhp446: GitVersion.h
+hhp446: CFLAGS+=$(CFLAGS_F4) $(DEFS_DRCC_DVM) -DDRCC_DVM_HHP446
+hhp446: CXXFLAGS+=$(CXXFLAGS_F4) $(DEFS_DRCC_DVM) -DDRCC_DVM_HHP446
+hhp446: LDFLAGS+=$(LDFLAGS_F4)
+hhp446: release_f4
+
+eda405: GitVersion.h
+eda405: CFLAGS+=$(CFLAGS_F4) $(DEFS_EDA_405)
+eda405: CXXFLAGS+=$(CXXFLAGS_F4) $(DEFS_EDA_405)
+eda405: LDFLAGS+=$(LDFLAGS_F4)
+eda405: release_f4
+
+eda446: GitVersion.h
+eda446: CFLAGS+=$(CFLAGS_F4) $(DEFS_EDA_446)
+eda446: CXXFLAGS+=$(CXXFLAGS_F4) $(DEFS_EDA_446)
+eda446: LDFLAGS+=$(LDFLAGS_F4)
+eda446: release_f4
+
 release_f4: $(BINDIR)
 release_f4: $(OBJDIR_F4)
 release_f4: $(BINDIR)/$(BINHEX_F4)
@@ -338,27 +368,27 @@ endif
 deploy-pi:
 ifneq ($(wildcard /usr/local/bin/stm32flash),)
 	-/usr/local/bin/stm32flash -i 20,-21,21:-20,21 /dev/ttyAMA0
-	-/usr/local/bin/stm32ld /dev/ttyAMA0 57600 bin/$(BINBIN_F4)
-	/usr/local/bin/stm32flash -v -w bin/$(BINBIN_F4) -g 0x0 -R -c /dev/ttyAMA0
+	/usr/local/bin/stm32flash -v -w bin/$(BINBIN_F4) -g 0x0 -R /dev/ttyAMA0
 endif
 
 ifneq ($(wildcard /usr/bin/stm32flash),)
 	-/usr/bin/stm32flash -i 20,-21,21:-20,21 /dev/ttyAMA0
-	-/usr/bin/stm32ld /dev/ttyAMA0 57600 bin/$(BINBIN_F4)
-	/usr/bin/stm32flash -v -w bin/$(BINBIN_F4) -g 0x0 -R -c /dev/ttyAMA0
+	/usr/bin/stm32flash -v -w bin/$(BINBIN_F4) -g 0x0 -R /dev/ttyAMA0
 endif
 
 deploy-f4m: deploy-pi
 deploy-dvm: deploy-pi
+deploy-eda405: deploy-pi
+deploy-eda446: deploy-pi
 
 deploy-pi-f7:
 ifneq ($(wildcard /usr/local/bin/stm32flash),)
 	-/usr/local/bin/stm32flash -i 20,-21,21:-20,21 /dev/ttyAMA0
-	/usr/local/bin/stm32flash -v -w bin/$(BINBIN_F7) -g 0x0 -R -c /dev/ttyAMA0
+	/usr/local/bin/stm32flash -v -w bin/$(BINBIN_F7) -g 0x0 -R /dev/ttyAMA0
 
 else ifneq ($(wildcard /usr/bin/stm32flash),)
 	-/usr/bin/stm32flash -i 20,-21,21:-20,21 /dev/ttyAMA0
-	/usr/bin/stm32flash -v -w bin/$(BINBIN_F7) -g 0x0 -R -c /dev/ttyAMA0
+	/usr/bin/stm32flash -v -w bin/$(BINBIN_F7) -g 0x0 -R /dev/ttyAMA0
 endif
 
 deploy-f7m:   deploy-pi-f7

NXDNTX.cpp

@@ -54,7 +54,7 @@ m_poBuffer(),
 m_poLen(0U),
 m_poPtr(0U),
 m_txDelay(240U),     // 200ms
-m_txHang(6000U),     // 5s
+m_txHang(3000U),     // 5s
 m_txCount(0U)
 {
   ::memset(m_modState, 0x00U, 16U * sizeof(q15_t));
@@ -72,10 +72,7 @@ m_txCount(0U)
 
 void CNXDNTX::process()
 {
-  if (m_buffer.getData() == 0U && m_poLen == 0U && m_txCount == 0U)
-    return;
-
-  if (m_poLen == 0U) {
+  if (m_poLen == 0U && m_buffer.getData() > 0U) {
     if (!m_tx) {
       for (uint16_t i = 0U; i < m_txDelay; i++)
         m_poBuffer[m_poLen++] = NXDN_SYNC;
@@ -200,5 +197,5 @@ uint8_t CNXDNTX::getSpace() const
 
 void CNXDNTX::setParams(uint8_t txHang)
 {
-  m_txHang = txHang * 1200U;
+  m_txHang = txHang * 600U;
 }

P25TX.cpp

@@ -70,10 +70,7 @@ m_txCount(0U)
 
 void CP25TX::process()
 {
-  if (m_buffer.getData() == 0U && m_poLen == 0U && m_txCount == 0U)
-    return;
-
-  if (m_poLen == 0U) {
+  if (m_poLen == 0U && m_buffer.getData() > 0U) {
     if (!m_tx) {
       for (uint16_t i = 0U; i < m_txDelay; i++)
         m_poBuffer[m_poLen++] = P25_START_SYNC;

README.md

@@ -1,7 +1,17 @@
-This is the source code of the MMDVM firmware that supports D-Star, DMR, System Fusion, P25, NXDN, and POCSAG modes.
+This is the source code of the MMDVM firmware that supports D-Star, DMR,
+System Fusion, P25, NXDN, POCSAG, and FM modes.
 
-It runs on the Arduino Due, the ST-Micro STM32F1xxx, STM32F4xxx and STM32F7xxx processors, as well as the Teensy 3.1/3.2/3.5/3.6. What these platforms have in common is the use of an ARM Cortex-M3 or M4 processor with a clock speed greater than 70 MHz, and access to at least one analogue to digital converter and one digital to analogue converter.
+It runs on the Arduino Due, the ST-Micro STM32F1xxx, STM32F4xxx and STM32F7xxx
+processors, as well as the Teensy 3.1/3.2/3.5/3.6. What these platforms have in
+common is the use of an ARM Cortex-M3, M4, or M7 processors with a clock speed
+greater than 70 MHz, and access to at least one analogue to digital converter
+and one digital to analogue converter.
 
-In order to build this software for the Arduino Due, you will need to edit a file within the Arduino GUI and that is detailed in the BUILD.txt file. The STM32 support is being supplied via the Coocox IDE with ARM GCC. The Teensy support uses Teensyduino.
+In order to build this software for the Arduino Due, you will need to edit a
+file within the Arduino GUI and that is detailed in the BUILD.txt file. The
+STM32 support is being supplied via the ARM GCC compiler. The Teensy support
+uses Teensyduino.
 
-This software is licenced under the GPL v2 and is intended for amateur and educational use only. Use of this software for commercial purposes is strictly forbidden.
+This software is licenced under the GPL v2 and is intended for amateur and
+educational use only. Use of this software for commercial purposes is strictly
+forbidden.

SerialPort.cpp

@@ -97,13 +97,17 @@ const uint8_t MMDVM_DEBUG5       = 0xF5U;
 
 #if defined(DRCC_DVM_NQF)
 #define	HW_TYPE	"MMDVM DRCC_DVM_NQF"
-#elif defined(STM32F4_RPT_HAT_TGO)
-#define	HW_TYPE	"MMDVM RPT_HAT_TGO"
+#elif defined(DRCC_DVM_HHP446)
+#define	HW_TYPE	"MMDVM DRCC_DVM_HHP(446)"
+#elif defined(DRCC_DVM_722)
+#define HW_TYPE "MMDVM RB_STM32_DVM(722)"
+#elif defined(DRCC_DVM_446)
+#define HW_TYPE "MMDVM RB_STM32_DVM(446)"
 #else
 #define	HW_TYPE	"MMDVM"
 #endif
 
-#define DESCRIPTION "20200512 (D-Star/DMR/System Fusion/P25/NXDN/POCSAG/FM)"
+#define DESCRIPTION "20210101 (D-Star/DMR/System Fusion/P25/NXDN/POCSAG/FM)"
 
 #if defined(GITVERSION)
 #define concat(h, a, b, c) h " " a " " b " GitID #" c ""
@@ -267,11 +271,12 @@ uint8_t CSerialPort::setConfig(const uint8_t* data, uint8_t length)
   if (length < 21U)
     return 4U;
 
-  bool rxInvert  = (data[0U] & 0x01U) == 0x01U;
-  bool txInvert  = (data[0U] & 0x02U) == 0x02U;
-  bool pttInvert = (data[0U] & 0x04U) == 0x04U;
-  bool ysfLoDev  = (data[0U] & 0x08U) == 0x08U;
-  bool simplex   = (data[0U] & 0x80U) == 0x80U;
+  bool rxInvert        = (data[0U] & 0x01U) == 0x01U;
+  bool txInvert        = (data[0U] & 0x02U) == 0x02U;
+  bool pttInvert       = (data[0U] & 0x04U) == 0x04U;
+  bool ysfLoDev        = (data[0U] & 0x08U) == 0x08U;
+  bool useCOSAsLockout = (data[0U] & 0x20U) == 0x20U;
+  bool simplex         = (data[0U] & 0x80U) == 0x80U;
 
   m_debug = (data[0U] & 0x10U) == 0x10U;
 
@@ -363,7 +368,7 @@ uint8_t CSerialPort::setConfig(const uint8_t* data, uint8_t length)
   p25TX.setParams(p25TXHang);
   nxdnTX.setParams(nxdnTXHang);
 
-  io.setParameters(rxInvert, txInvert, pttInvert, rxLevel, cwIdTXLevel, dstarTXLevel, dmrTXLevel, ysfTXLevel, p25TXLevel, nxdnTXLevel, pocsagTXLevel, fmTXLevel, txDCOffset, rxDCOffset);
+  io.setParameters(rxInvert, txInvert, pttInvert, rxLevel, cwIdTXLevel, dstarTXLevel, dmrTXLevel, ysfTXLevel, p25TXLevel, nxdnTXLevel, pocsagTXLevel, fmTXLevel, txDCOffset, rxDCOffset, useCOSAsLockout);
 
   io.start();
 
@@ -431,14 +436,14 @@ uint8_t CSerialPort::setFMParams3(const uint8_t* data, uint8_t length)
   uint8_t  kerchunkTime   = data[6U];
   uint8_t  hangTime       = data[7U];
 
-  bool     useCOS         = (data[8U] & 0x01U) == 0x01U;
-  bool     cosInvert      = (data[8U] & 0x02U) == 0x02U;
+  uint8_t  accessMode     = data[8U] & 0x7FU;
+  bool     cosInvert      = (data[8U] & 0x80U) == 0x80U;
 
   uint8_t  rfAudioBoost   = data[9U];
   uint8_t  maxDev         = data[10U];
   uint8_t  rxLevel        = data[11U];
 
-  return fm.setMisc(timeout, timeoutLevel, ctcssFrequency, ctcssHighThreshold, ctcssLowThreshold, ctcssLevel, kerchunkTime, hangTime, useCOS, cosInvert, rfAudioBoost, maxDev, rxLevel);
+  return fm.setMisc(timeout, timeoutLevel, ctcssFrequency, ctcssHighThreshold, ctcssLowThreshold, ctcssLevel, kerchunkTime, hangTime, accessMode, cosInvert, rfAudioBoost, maxDev, rxLevel);
 }
 
 uint8_t CSerialPort::setMode(const uint8_t* data, uint8_t length)
@@ -567,9 +572,7 @@ void CSerialPort::setMode(MMDVM_STATE modemState)
 
   cwIdTX.reset();
 
-  m_modemState = modemState;
-
-  io.setMode();
+  io.setMode(modemState);
 }
 
 void CSerialPort::start()
@@ -592,8 +595,7 @@ void CSerialPort::process()
         m_buffer[0U] = c;
         m_ptr = 1U;
         m_len = 0U;
-      }
-      else {
+      } else {
         m_ptr = 0U;
         m_len = 0U;
       }

SerialSTM.cpp

@@ -27,14 +27,14 @@
 Pin definitions:
 
 - Host communication:
-USART1 - TXD PA9  - RXD PA10 (MMDVM-Pi board, MMDVM-Pi F722 board, MMDVM-F4M board, STM32F722-F7M board, STM32F4-DVM board)
+USART1 - TXD PA9  - RXD PA10 (MMDVM-Pi board, MMDVM-Pi F722 board, MMDVM-F4M board, STM32F722-F7M board, STM32F4-DVM board, STM32F7-DVM board)
 USART2 - TXD PA2  - RXD PA3  (Nucleo64 F446RE board, Morpho or Arduino header, MMDVM_RPT_Hat BG4TGO/BG5HHP board)
 USART3 - TXD PC10 - RXD PC11 (Discovery board)
 USART3 - TXD PD8  - RXD PD9  (Nucleo144 F767ZI board)
 
 - Serial repeater:
 USART1 - TXD PA9  - RXD PA10 (Nucleo with Arduino header)
-UART5  - TXD PC12 - RXD PD2 (Discovery, MMDVM-Pi, MMDVM-Pi F722 board, MMDVM-F4M board, STM32F722-F7M board, STM32F4-DVM board, Nucleo64 with Morpho header and Nucleo144 F767ZI, MMDVM_RPT_Hat BG4TGO/BG5HHP board)
+UART5  - TXD PC12 - RXD PD2 (Discovery, MMDVM-Pi, MMDVM-Pi F722 board, MMDVM-F4M board, STM32F722-F7M board, STM32F4-DVM board, STM32F7-DVM board, Nucleo64 with Morpho header and Nucleo144 F767ZI, MMDVM_RPT_Hat BG4TGO/BG5HHP board)
 */
 
 #if defined(STM32F4XX) || defined(STM32F7XX)
@@ -50,7 +50,7 @@ extern "C" {
 }
 
 /* ************* USART1 ***************** */
-#if defined(STM32F4_PI) || defined(STM32F4_F4M) || defined(STM32F722_F7M) || defined(STM32F722_PI) || defined(STM32F722_RPT_HAT) || defined(STM32F4_DVM) || (defined(STM32F4_NUCLEO) && defined(STM32F4_NUCLEO_ARDUINO_HEADER)) || defined(DRCC_DVM)
+#if defined(STM32F4_PI) || defined(STM32F4_F4M) || defined(STM32F722_F7M) || defined(STM32F722_PI) || defined(STM32F722_RPT_HAT) || defined(STM32F4_DVM) || defined(STM32F7_DVM) || (defined(STM32F4_NUCLEO) && defined(STM32F4_NUCLEO_ARDUINO_HEADER)) || defined(DRCC_DVM) || defined(STM32F4_EDA_405) || defined(STM32F4_EDA_446)
 
 volatile uint8_t  TXSerialfifo1[TX_SERIAL_FIFO_SIZE];
 volatile uint8_t  RXSerialfifo1[RX_SERIAL_FIFO_SIZE];
@@ -841,7 +841,7 @@ void CSerialPort::beginInt(uint8_t n, int speed)
       case 1U:
          #if defined(STM32F4_DISCOVERY) || defined(STM32F7_NUCLEO)
          InitUSART3(speed);
-         #elif defined(STM32F4_PI) || defined(STM32F4_F4M) || defined(STM32F722_PI) || defined(STM32F722_F7M) || defined(STM32F722_RPT_HAT) || defined(STM32F4_DVM)
+         #elif defined(STM32F4_PI) || defined(STM32F4_F4M) || defined(STM32F722_PI) || defined(STM32F722_F7M) || defined(STM32F722_RPT_HAT) || defined(STM32F4_DVM) || defined(STM32F7_DVM) || defined(STM32F4_EDA_405) || defined(STM32F4_EDA_446)
          InitUSART1(speed);
          #elif defined(STM32F4_NUCLEO) || defined(STM32F4_RPT_HAT_TGO)
          InitUSART2(speed);
@@ -869,7 +869,7 @@ int CSerialPort::availableInt(uint8_t n)
       case 1U:
          #if defined(STM32F4_DISCOVERY) || defined(STM32F7_NUCLEO)
          return AvailUSART3();
-         #elif defined(STM32F4_PI) || defined(STM32F4_F4M) || defined(STM32F722_PI) || defined(STM32F722_F7M) || defined(STM32F722_RPT_HAT) || defined(STM32F4_DVM)
+         #elif defined(STM32F4_PI) || defined(STM32F4_F4M) || defined(STM32F722_PI) || defined(STM32F722_F7M) || defined(STM32F722_RPT_HAT) || defined(STM32F4_DVM) || defined(STM32F7_DVM) || defined(STM32F4_EDA_405) || defined(STM32F4_EDA_446)
          return AvailUSART1();
          #elif defined(STM32F4_NUCLEO) || defined(STM32F4_RPT_HAT_TGO)
          return AvailUSART2();
@@ -895,7 +895,7 @@ int CSerialPort::availableForWriteInt(uint8_t n)
       case 1U:
          #if defined(STM32F4_DISCOVERY) || defined(STM32F7_NUCLEO)
          return AvailForWriteUSART3();
-         #elif defined(STM32F4_PI) || defined(STM32F4_F4M) || defined(STM32F722_PI) || defined(STM32F722_F7M) || defined(STM32F722_RPT_HAT) || defined(STM32F4_DVM)
+         #elif defined(STM32F4_PI) || defined(STM32F4_F4M) || defined(STM32F722_PI) || defined(STM32F722_F7M) || defined(STM32F722_RPT_HAT) || defined(STM32F4_DVM) || defined(STM32F7_DVM) || defined(STM32F4_EDA_405) || defined(STM32F4_EDA_446)
          return AvailForWriteUSART1();
          #elif defined(STM32F4_NUCLEO) || defined(STM32F4_RPT_HAT_TGO)
          return AvailForWriteUSART2();
@@ -906,7 +906,7 @@ int CSerialPort::availableForWriteInt(uint8_t n)
          #if defined(STM32F4_NUCLEO) && defined(STM32F4_NUCLEO_ARDUINO_HEADER)
          return AvailForWriteUSART1();
          #elif defined(DRCC_DVM)
-         AvailForWriteUSART2();
+         return AvailForWriteUSART2();
          #else
          return AvailForWriteUART5();
          #endif
@@ -921,7 +921,7 @@ uint8_t CSerialPort::readInt(uint8_t n)
       case 1U:
          #if defined(STM32F4_DISCOVERY) || defined(STM32F7_NUCLEO)
          return ReadUSART3();
-         #elif defined(STM32F4_PI) || defined(STM32F4_F4M) || defined(STM32F722_PI) || defined(STM32F722_F7M) || defined(STM32F722_RPT_HAT) || defined(STM32F4_DVM)
+         #elif defined(STM32F4_PI) || defined(STM32F4_F4M) || defined(STM32F722_PI) || defined(STM32F722_F7M) || defined(STM32F722_RPT_HAT) || defined(STM32F4_DVM) || defined(STM32F7_DVM) || defined(STM32F4_EDA_405) || defined(STM32F4_EDA_446)
          return ReadUSART1();
          #elif defined(STM32F4_NUCLEO) || defined(STM32F4_RPT_HAT_TGO)
          return ReadUSART2();
@@ -949,7 +949,7 @@ void CSerialPort::writeInt(uint8_t n, const uint8_t* data, uint16_t length, bool
          WriteUSART3(data, length);
          if (flush)
             TXSerialFlush3();
-         #elif defined(STM32F4_PI) || defined(STM32F4_F4M) || defined(STM32F722_PI) || defined(STM32F722_F7M) || defined(STM32F722_RPT_HAT) || defined(STM32F4_DVM)
+         #elif defined(STM32F4_PI) || defined(STM32F4_F4M) || defined(STM32F722_PI) || defined(STM32F722_F7M) || defined(STM32F722_RPT_HAT) || defined(STM32F4_DVM) || defined(STM32F7_DVM) || defined(STM32F4_EDA_405) || defined(STM32F4_EDA_446)
          WriteUSART1(data, length);
          if (flush)
             TXSerialFlush1();

YSFRX.cpp

@@ -36,7 +36,7 @@ const uint8_t NOAVEPTR = 99U;
 
 const uint16_t NOENDPTR = 9999U;
 
-const unsigned int MAX_SYNC_FRAMES = 4U + 1U;
+const unsigned int MAX_SYNC_FRAMES = 1U + 1U;
 
 CYSFRX::CYSFRX() :
 m_state(YSFRXS_NONE),

YSFTX.cpp

@@ -66,9 +66,6 @@ m_txCount(0U)
 
 void CYSFTX::process()
 {
-  if (m_buffer.getData() == 0U && m_poLen == 0U && m_txCount == 0U)
-    return;
-
   // If we have YSF data to transmit, do so.
   if (m_poLen == 0U && m_buffer.getData() > 0U) {
     if (!m_tx) {
@@ -191,4 +188,3 @@ void CYSFTX::setParams(bool on, uint8_t txHang)
   m_loDev  = on;
   m_txHang = txHang * 1200U;
 }
-

pins/pins_f4_drcc_hhp446.h

@@ -0,0 +1,143 @@
+/*
+ *   Copyright (C) 2019,2020 by BG5HHP
+ *
+ *   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
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _PINS_F4_DRCC_HHP446_H
+#define _PINS_F4_DRCC_HHP446_H
+
+/*
+Pin definitions for DRCC_DVM BG5HHP F446 board rev1
+
+TX/PTT_LED  PB12   output
+RX/COS_LED  PB5    output
+STATUS_LED  PB10   output
+
+COS_IN      PB13   input
+
+DSTAR       N/A
+DMR         N/A
+YSF         N/A
+P25         N/A
+NXDN        N/A
+POCSAG      N/A
+
+MDMR/BIT0   PB8    output
+MYSF/BIT1   PB9    output
+MDSTAR/BIT2 PB14   output
+MP25/BIT3   PB15   output          Generic Mode Pins
+MNXDN       N/A
+MPOCSAG     N/A
+
+RX          PA0    analog input
+RSSI        PA1    analog input
+TX          PA4    analog output
+
+EXT_CLK     N/A
+
+UART1_TX    PA9    output
+UART1_RX    PA10   output          Host Data Communication
+
+UART2_TX    PA2    output
+UART2_RX    PA3    output          Nextion Data Communication
+
+I2C1_SCL    PB6    output
+I2C1_SDA    PB7    output          OLED Data Communication as master
+
+*/
+
+#define PIN_COS           GPIO_Pin_13
+#define PORT_COS          GPIOB
+#define RCC_Per_COS       RCC_AHB1Periph_GPIOB
+
+#define PIN_PTT           GPIO_Pin_12
+#define PORT_PTT          GPIOB
+#define RCC_Per_PTT       RCC_AHB1Periph_GPIOB
+
+#define PIN_COSLED        GPIO_Pin_5
+#define PORT_COSLED       GPIOB
+#define RCC_Per_COSLED    RCC_AHB1Periph_GPIOB
+
+#define PIN_LED           GPIO_Pin_10
+#define PORT_LED          GPIOB
+#define RCC_Per_LED       RCC_AHB1Periph_GPIOB
+
+#define PIN_TXLED         GPIO_Pin_4
+#define PORT_TXLED        GPIOB
+#define RCC_Per_TXLED     RCC_AHB1Periph_GPIOB
+
+// #define PIN_P25           GPIO_Pin_3
+// #define PORT_P25          GPIOB
+// #define RCC_Per_P25       RCC_AHB1Periph_GPIOB
+
+// #define PIN_NXDN          GPIO_Pin_10
+// #define PORT_NXDN         GPIOA
+// #define RCC_Per_NXDN      RCC_AHB1Periph_GPIOA
+
+// #define PIN_POCSAG        GPIO_Pin_12
+// #define PORT_POCSAG       GPIOB
+// #define RCC_Per_POCSAG    RCC_AHB1Periph_GPIOB
+
+// #define PIN_DSTAR         GPIO_Pin_10
+// #define PORT_DSTAR        GPIOB
+// #define RCC_Per_DSTAR     RCC_AHB1Periph_GPIOB
+
+// #define PIN_DMR           GPIO_Pin_4
+// #define PORT_DMR          GPIOB
+// #define RCC_Per_DMR       RCC_AHB1Periph_GPIOB
+
+// #define PIN_YSF           GPIO_Pin_5
+// #define PORT_YSF          GPIOB
+// #define RCC_Per_YSF       RCC_AHB1Periph_GPIOB
+
+#if defined(MODE_PINS)
+#define PIN_MP25          GPIO_Pin_15
+#define PORT_MP25         GPIOB
+#define RCC_Per_MP25      RCC_AHB1Periph_GPIOB
+
+#define PIN_MDSTAR        GPIO_Pin_9
+#define PORT_MDSTAR       GPIOB
+#define RCC_Per_MDSTAR    RCC_AHB1Periph_GPIOB
+
+#define PIN_MDMR          GPIO_Pin_8
+#define PORT_MDMR         GPIOB
+#define RCC_Per_MDMR      RCC_AHB1Periph_GPIOB
+
+#define PIN_MYSF          GPIO_Pin_14
+#define PORT_MYSF         GPIOB
+#define RCC_Per_MYSF      RCC_AHB1Periph_GPIOB
+#endif
+
+#define PIN_EXT_CLK       GPIO_Pin_15
+#define SRC_EXT_CLK       GPIO_PinSource15
+#define PORT_EXT_CLK      GPIOA
+
+#define PIN_RX            GPIO_Pin_0
+#define PIN_RX_CH         ADC_Channel_0
+#define PORT_RX           GPIOA
+#define RCC_Per_RX        RCC_AHB1Periph_GPIOA
+
+#define PIN_RSSI          GPIO_Pin_1
+#define PIN_RSSI_CH       ADC_Channel_1
+#define PORT_RSSI         GPIOA
+#define RCC_Per_RSSI      RCC_AHB1Periph_GPIOA
+
+#define PIN_TX            GPIO_Pin_4
+#define PIN_TX_CH         DAC_Channel_1
+#define PORT_TX           GPIOA
+#define RCC_Per_TX        RCC_AHB1Periph_GPIOA
+
+#endif

pins/pins_f4_drcc_nqf.h

@@ -22,36 +22,40 @@
 /*
 Pin definitions for DRCC_DVM BG7NQF  board rev1
 
-PTT      PB12   output
-LED_PTT  PB4    output
-LED_COS  PB5    output
-LED_SRV  PB10   output
-COS      PB13   input
+TX/PTT_LED  PB12   output
+RX/COS_LED  PB5    output
+STATUS_LED  PB10   output
 
-DSTAR    N/A
-DMR      N/A
-YSF      N/A
-P25      N/A
-NXDN     N/A
-POCSAG   N/A
+COS_IN      PB13   input
 
-MDSTAR   PB14   output
-MDMR     PB8    output
-MYSF     PB9    output
-MP25     PB15   output
-MNXDN    N/A
-MPOCSAG  N/A
+DSTAR       N/A
+DMR         N/A
+YSF         N/A
+P25         N/A
+NXDN        N/A
+POCSAG      N/A
 
-RX       PB0    analog input
-RSSI     PB1    analog input
-TX       PA4    analog output
+MDMR/BIT0   PB8    output
+MYSF/BIT1   PB9    output
+MDSTAR/BIT2 PB14   output
+MP25/BIT3   PB15   output          Generic Mode Pins
+MNXDN       N/A
+MPOCSAG     N/A
 
-EXT_CLK  PA15   input
+RX          PA0    analog input
+RSSI        PA1    analog input
+TX          PA4    analog output
 
-UART1_TX PA9    output
-UART1_RX PA10   output
-UART2_TX PA2    output
-UART2_RX PA3    output
+EXT_CLK     PA15   input
+
+UART1_TX    PA9    output
+UART1_RX    PA10   output          Host Data Communication
+
+UART2_TX    PA2    output
+UART2_RX    PA3    output          Nextion Data Communication
+
+I2C1_SCL    PB6    output
+I2C1_SDA    PB7    output          OLED Data Communication as master
 
 */
 
@@ -124,13 +128,13 @@ UART2_RX PA3    output
 
 #define PIN_RX            GPIO_Pin_0
 #define PIN_RX_CH         ADC_Channel_0
-#define PORT_RX           GPIOB
-#define RCC_Per_RX        RCC_AHB1Periph_GPIOB
+#define PORT_RX           GPIOA
+#define RCC_Per_RX        RCC_AHB1Periph_GPIOA
 
 #define PIN_RSSI          GPIO_Pin_1
 #define PIN_RSSI_CH       ADC_Channel_1
-#define PORT_RSSI         GPIOB
-#define RCC_Per_RSSI      RCC_AHB1Periph_GPIOB
+#define PORT_RSSI         GPIOA
+#define RCC_Per_RSSI      RCC_AHB1Periph_GPIOA
 
 #define PIN_TX            GPIO_Pin_4
 #define PIN_TX_CH         DAC_Channel_1

pins/pins_f4_stm32dvm_v3.h

@@ -32,7 +32,7 @@ NXDN     PB9    output
 DSTAR    PB6    output
 DMR      PB5    output
 YSF      PB7    output
-POCSAG   PC10   output
+POCSAG   PC10   output (Not Valid)
 
 RX       PB0    analog input
 RSSI     PB1    analog input
@@ -78,9 +78,15 @@ EXT_CLK  PA15   input
 #define PORT_YSF          GPIOB
 #define RCC_Per_YSF       RCC_AHB1Periph_GPIOB
 
+/*
 #define PIN_POCSAG        GPIO_Pin_10
 #define PORT_POCSAG       GPIOC
 #define RCC_Per_POCSAG    RCC_AHB1Periph_GPIOC
+*/
+
+#define PIN_FM            GPIO_Pin_14
+#define PORT_FM           GPIOB
+#define RCC_Per_FM        RCC_AHB1Periph_GPIOB
 
 #define PIN_EXT_CLK       GPIO_Pin_15
 #define SRC_EXT_CLK       GPIO_PinSource15
@@ -99,4 +105,4 @@ EXT_CLK  PA15   input
 #define PIN_TX            GPIO_Pin_4
 #define PIN_TX_CH         DAC_Channel_1
 
-#endif
+#endif

pins/pins_f4_stm32eda.h

@@ -0,0 +1,108 @@
+/*
+ *   Copyright (C) 2019,2020 by BG5HHP
+ *
+ *   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
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _PINS_F4_STM32EDA
+#define _PINS_F4_STM32EDA
+
+/*
+Pin definitions for STM32F4 STM32-DVM-MTR2K & STM32-DVM-MASTR3:
+
+COS      PB13   input
+PTT      PB12   output
+COSLED   PB4    output
+LED      PB3    output
+
+P25      PB8    output
+NXDN     PB9    output
+DSTAR    PB6    output
+DMR      PB5    output
+YSF      PB7    output
+POCSAG   PC10   output
+FM       PC11   output
+
+RX       PB0    analog input
+RSSI     PB1    analog input
+TX       PA4    analog output
+
+EXT_CLK  PA15   input
+*/
+
+#define PIN_COS           GPIO_Pin_13
+#define PORT_COS          GPIOB
+#define RCC_Per_COS       RCC_AHB1Periph_GPIOB
+
+
+#define PIN_PTT           GPIO_Pin_12
+#define PORT_PTT          GPIOB
+#define RCC_Per_PTT       RCC_AHB1Periph_GPIOB
+
+#define PIN_COSLED        GPIO_Pin_4
+#define PORT_COSLED       GPIOB
+#define RCC_Per_COSLED    RCC_AHB1Periph_GPIOB
+
+#define PIN_LED           GPIO_Pin_3
+#define PORT_LED          GPIOB
+#define RCC_Per_LED       RCC_AHB1Periph_GPIOB
+
+#define PIN_P25           GPIO_Pin_8
+#define PORT_P25          GPIOB
+#define RCC_Per_P25       RCC_AHB1Periph_GPIOB
+
+#define PIN_NXDN          GPIO_Pin_9
+#define PORT_NXDN         GPIOB
+#define RCC_Per_NXDN      RCC_AHB1Periph_GPIOB
+
+#define PIN_DSTAR         GPIO_Pin_6
+#define PORT_DSTAR        GPIOB
+#define RCC_Per_DSTAR     RCC_AHB1Periph_GPIOB
+
+#define PIN_DMR           GPIO_Pin_5
+#define PORT_DMR          GPIOB
+#define RCC_Per_DMR       RCC_AHB1Periph_GPIOB
+
+#define PIN_YSF           GPIO_Pin_7
+#define PORT_YSF          GPIOB
+#define RCC_Per_YSF       RCC_AHB1Periph_GPIOB
+
+#define PIN_POCSAG        GPIO_Pin_10
+#define PORT_POCSAG       GPIOC
+#define RCC_Per_POCSAG    RCC_AHB1Periph_GPIOC
+
+#define PIN_FM            GPIO_Pin_11
+#define PORT_FM           GPIOC
+#define RCC_Per_FM        RCC_AHB1Periph_GPIOC
+
+#define PIN_EXT_CLK       GPIO_Pin_15
+#define SRC_EXT_CLK       GPIO_PinSource15
+#define PORT_EXT_CLK      GPIOA
+
+#define PIN_RX            GPIO_Pin_0
+#define PIN_RX_CH         ADC_Channel_8
+#define PORT_RX           GPIOB
+#define RCC_Per_RX        RCC_AHB1Periph_GPIOB
+
+#define PIN_RSSI          GPIO_Pin_1
+#define PIN_RSSI_CH       ADC_Channel_9
+#define PORT_RSSI         GPIOB
+#define RCC_Per_RSSI      RCC_AHB1Periph_GPIOB
+
+#define PIN_TX            GPIO_Pin_4
+#define PIN_TX_CH         DAC_Channel_1
+
+#endif
+

pins/pins_f7_stm32dvm_v5.h

@@ -0,0 +1,108 @@
+/*
+ *   Copyright (C) 2019,2020 by BG5HHP
+ *
+ *   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
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _PINS_F7_STM32DVM_V5_H
+#define _PINS_F7_STM32DVM_V5_H
+
+/*
+Pin definitions for STM32F4 STM32-DVM rev 5 Board:
+
+COS      PB13   input
+PTT      PB12   output
+COSLED   PB4    output
+LED      PB3    output
+
+P25      PB8    output
+NXDN     PB9    output
+DSTAR    PB6    output
+DMR      PB5    output
+YSF      PB7    output
+POCSAG   PC10   output (Not Valid)
+
+RX       PB0    analog input
+RSSI     PB1    analog input
+TX       PA4    analog output
+
+EXT_CLK  PA15   input
+*/
+
+#define PIN_COS           GPIO_Pin_13
+#define PORT_COS          GPIOB
+#define RCC_Per_COS       RCC_AHB1Periph_GPIOB
+
+
+#define PIN_PTT           GPIO_Pin_12
+#define PORT_PTT          GPIOB
+#define RCC_Per_PTT       RCC_AHB1Periph_GPIOB
+
+#define PIN_COSLED        GPIO_Pin_4
+#define PORT_COSLED       GPIOB
+#define RCC_Per_COSLED    RCC_AHB1Periph_GPIOB
+
+#define PIN_LED           GPIO_Pin_3
+#define PORT_LED          GPIOB
+#define RCC_Per_LED       RCC_AHB1Periph_GPIOB
+
+#define PIN_P25           GPIO_Pin_8
+#define PORT_P25          GPIOB
+#define RCC_Per_P25       RCC_AHB1Periph_GPIOB
+
+#define PIN_NXDN          GPIO_Pin_9
+#define PORT_NXDN         GPIOB
+#define RCC_Per_NXDN      RCC_AHB1Periph_GPIOB
+
+#define PIN_DSTAR         GPIO_Pin_6
+#define PORT_DSTAR        GPIOB
+#define RCC_Per_DSTAR     RCC_AHB1Periph_GPIOB
+
+#define PIN_DMR           GPIO_Pin_5
+#define PORT_DMR          GPIOB
+#define RCC_Per_DMR       RCC_AHB1Periph_GPIOB
+
+#define PIN_YSF           GPIO_Pin_7
+#define PORT_YSF          GPIOB
+#define RCC_Per_YSF       RCC_AHB1Periph_GPIOB
+
+/*
+#define PIN_POCSAG        GPIO_Pin_10
+#define PORT_POCSAG       GPIOC
+#define RCC_Per_POCSAG    RCC_AHB1Periph_GPIOC
+*/
+
+#define PIN_FM            GPIO_Pin_14
+#define PORT_FM           GPIOB
+#define RCC_Per_FM        RCC_AHB1Periph_GPIOB
+
+#define PIN_EXT_CLK       GPIO_Pin_15
+#define SRC_EXT_CLK       GPIO_PinSource15
+#define PORT_EXT_CLK      GPIOA
+
+#define PIN_RX            GPIO_Pin_0
+#define PIN_RX_CH         ADC_Channel_8
+#define PORT_RX           GPIOB
+#define RCC_Per_RX        RCC_AHB1Periph_GPIOB
+
+#define PIN_RSSI          GPIO_Pin_1
+#define PIN_RSSI_CH       ADC_Channel_9
+#define PORT_RSSI         GPIOB
+#define RCC_Per_RSSI      RCC_AHB1Periph_GPIOB
+
+#define PIN_TX            GPIO_Pin_4
+#define PIN_TX_CH         DAC_Channel_1
+
+#endif