Merge branch 'boxcar_fm' into boxcar

Drcc serial bugfix

FM.cpp

@@ -235,14 +235,16 @@ 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()) {
+      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();
+    }
   }
 }
 
@@ -279,6 +281,9 @@ void CFM::listeningState(bool validSignal)
 
     m_callsignTimer.start();
 
+    io.setDecode(true);
+    io.setADCDetection(true);
+
     DEBUG1("Change to STATE_FM");
     m_modemState = STATE_FM;
   }
@@ -297,6 +302,9 @@ 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 +325,9 @@ 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 +342,9 @@ 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 +380,9 @@ 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 +410,9 @@ 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 +427,9 @@ 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();

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];

IO.cpp

@@ -26,31 +26,12 @@
 static q31_t   DC_FILTER[] = {3367972, 0, 3367972, 0, 2140747704, 0}; // {b0, 0, b1, b2, -a1, -a2}
 const uint32_t DC_FILTER_STAGES = 1U; // One Biquad stage
 
-// Generated using rcosdesign(0.2, 8, 5, 'sqrt') in MATLAB
-static q15_t RRC_0_2_FILTER[] = {401, 104, -340, -731, -847, -553, 112, 909, 1472, 1450, 683, -675, -2144, -3040, -2706, -770, 2667, 6995,
-                                 11237, 14331, 15464, 14331, 11237, 6995, 2667, -770, -2706, -3040, -2144, -675, 683, 1450, 1472, 909, 112,
-                                 -553, -847, -731, -340, 104, 401, 0};
-const uint16_t RRC_0_2_FILTER_LEN = 42U;
+// One symbol boxcar filters
+static q15_t   BOXCAR5_FILTER[] = {12000, 12000, 12000, 12000, 12000, 0};
+const uint16_t BOXCAR5_FILTER_LEN = 6U;
 
-// Generated using rcosdesign(0.2, 8, 10, 'sqrt') in MATLAB
-static q15_t NXDN_0_2_FILTER[] = {284, 198, 73, -78, -240, -393, -517, -590, -599, -533, -391, -181, 79, 364, 643, 880, 1041, 1097, 1026, 819,
-                                  483, 39, -477, -1016, -1516, -1915, -2150, -2164, -1914, -1375, -545, 557, 1886, 3376, 4946, 6502, 7946, 9184,
-                                  10134, 10731, 10935, 10731, 10134, 9184, 7946, 6502, 4946, 3376, 1886, 557, -545, -1375, -1914, -2164, -2150,
-                                  -1915, -1516, -1016, -477, 39, 483, 819, 1026, 1097, 1041, 880, 643, 364, 79, -181, -391, -533, -599, -590,
-                                  -517, -393, -240, -78, 73, 198, 284, 0};
-const uint16_t NXDN_0_2_FILTER_LEN = 82U;
-
-static q15_t NXDN_ISINC_FILTER[] = {790, -1085, -1073, -553, 747, 2341, 3156, 2152, -893, -4915, -7834, -7536, -3102, 4441, 12354, 17394, 17394,
-                                   12354, 4441, -3102, -7536, -7834, -4915, -893, 2152, 3156, 2341, 747, -553, -1073, -1085, 790};
-const uint16_t NXDN_ISINC_FILTER_LEN = 32U;
-
-// Generated using gaussfir(0.5, 4, 5) in MATLAB
-static q15_t   GAUSSIAN_0_5_FILTER[] = {8, 104, 760, 3158, 7421, 9866, 7421, 3158, 760, 104, 8, 0};
-const uint16_t GAUSSIAN_0_5_FILTER_LEN = 12U;
-
-// One symbol boxcar filter
-static q15_t   BOXCAR_FILTER[] = {12000, 12000, 12000, 12000, 12000, 0};
-const uint16_t BOXCAR_FILTER_LEN = 6U;
+static q15_t   BOXCAR10_FILTER[] = {6000, 6000, 6000, 6000, 6000, 6000, 6000, 6000, 6000, 6000};
+const uint16_t BOXCAR10_FILTER_LEN = 10U;
 
 const uint16_t DC_OFFSET = 2048U;
 
@@ -61,16 +42,10 @@ m_txBuffer(TX_RINGBUFFER_SIZE),
 m_rssiBuffer(RX_RINGBUFFER_SIZE),
 m_dcFilter(),
 m_dcState(),
-m_rrcFilter(),
-m_gaussianFilter(),
-m_boxcarFilter(),
-m_nxdnFilter(),
-m_nxdnISincFilter(),
-m_rrcState(),
-m_gaussianState(),
-m_boxcarState(),
-m_nxdnState(),
-m_nxdnISincState(),
+m_boxcar5Filter(),
+m_boxcar10Filter(),
+m_boxcar5State(),
+m_boxcar10State(),
 m_pttInvert(false),
 m_rxLevel(128 * 128),
 m_cwIdTXLevel(128 * 128),
@@ -91,37 +66,22 @@ m_dacOverflow(0U),
 m_watchdog(0U),
 m_lockout(false)
 {
-  ::memset(m_rrcState,      0x00U,  70U * sizeof(q15_t));
-  ::memset(m_gaussianState, 0x00U,  40U * sizeof(q15_t));
-  ::memset(m_boxcarState,   0x00U,  30U * sizeof(q15_t));
-  ::memset(m_nxdnState,     0x00U, 110U * sizeof(q15_t));
-  ::memset(m_nxdnISincState, 0x00U, 60U * sizeof(q15_t));
-  ::memset(m_dcState,       0x00U,   4U * sizeof(q31_t));
+  ::memset(m_boxcar5State,  0x00U, 30U * sizeof(q15_t));
+  ::memset(m_boxcar10State, 0x00U, 40U * sizeof(q15_t));
+  ::memset(m_dcState,       0x00U,  4U * sizeof(q31_t));
 
   m_dcFilter.numStages = DC_FILTER_STAGES;
   m_dcFilter.pState    = m_dcState;
   m_dcFilter.pCoeffs   = DC_FILTER;
   m_dcFilter.postShift = 0;
 
-  m_rrcFilter.numTaps = RRC_0_2_FILTER_LEN;
-  m_rrcFilter.pState  = m_rrcState;
-  m_rrcFilter.pCoeffs = RRC_0_2_FILTER;
+  m_boxcar5Filter.numTaps = BOXCAR5_FILTER_LEN;
+  m_boxcar5Filter.pState  = m_boxcar5State;
+  m_boxcar5Filter.pCoeffs = BOXCAR5_FILTER;
 
-  m_gaussianFilter.numTaps = GAUSSIAN_0_5_FILTER_LEN;
-  m_gaussianFilter.pState  = m_gaussianState;
-  m_gaussianFilter.pCoeffs = GAUSSIAN_0_5_FILTER;
-
-  m_boxcarFilter.numTaps = BOXCAR_FILTER_LEN;
-  m_boxcarFilter.pState  = m_boxcarState;
-  m_boxcarFilter.pCoeffs = BOXCAR_FILTER;
-  
-  m_nxdnFilter.numTaps = NXDN_0_2_FILTER_LEN;
-  m_nxdnFilter.pState  = m_nxdnState;
-  m_nxdnFilter.pCoeffs = NXDN_0_2_FILTER;
-  
-  m_nxdnISincFilter.numTaps = NXDN_ISINC_FILTER_LEN;
-  m_nxdnISincFilter.pState  = m_nxdnISincState;
-  m_nxdnISincFilter.pCoeffs = NXDN_ISINC_FILTER;
+  m_boxcar10Filter.numTaps = BOXCAR10_FILTER_LEN;
+  m_boxcar10Filter.pState  = m_boxcar10State;
+  m_boxcar10Filter.pCoeffs = BOXCAR10_FILTER;
 
   initInt();
   
@@ -308,54 +268,37 @@ void CIO::process()
 #endif
 
     if (m_modemState == STATE_IDLE) {
-      if (m_dstarEnable) {
-        q15_t GMSKVals[RX_BLOCK_SIZE];
-#if defined(USE_DCBLOCKER)
-        ::arm_fir_fast_q15(&m_gaussianFilter, dcSamples, GMSKVals, RX_BLOCK_SIZE);
-#else
-        ::arm_fir_fast_q15(&m_gaussianFilter, samples, GMSKVals, RX_BLOCK_SIZE);
-#endif
-        dstarRX.samples(GMSKVals, rssi, RX_BLOCK_SIZE);
-      }
+      if (m_dstarEnable || m_dmrEnable || m_ysfEnable || m_p25Enable) {
+        q15_t vals[RX_BLOCK_SIZE];
+        ::arm_fir_fast_q15(&m_boxcar5Filter, samples, vals, RX_BLOCK_SIZE);
 
-      if (m_p25Enable) {
-        q15_t P25Vals[RX_BLOCK_SIZE];
-#if defined(USE_DCBLOCKER)
-        ::arm_fir_fast_q15(&m_boxcarFilter, dcSamples, P25Vals, RX_BLOCK_SIZE);
-#else
-        ::arm_fir_fast_q15(&m_boxcarFilter, samples, P25Vals, RX_BLOCK_SIZE);
-#endif
-        p25RX.samples(P25Vals, rssi, RX_BLOCK_SIZE);
-      }
+        if (m_dstarEnable)
+          dstarRX.samples(vals, rssi, RX_BLOCK_SIZE);
 
-      if (m_nxdnEnable) {
-        q15_t NXDNValsTmp[RX_BLOCK_SIZE];
-#if defined(USE_DCBLOCKER)
-        ::arm_fir_fast_q15(&m_nxdnFilter, dcSamples, NXDNValsTmp, RX_BLOCK_SIZE);
-#else
-        ::arm_fir_fast_q15(&m_nxdnFilter, samples, NXDNValsTmp, RX_BLOCK_SIZE);
-#endif
-        q15_t NXDNVals[RX_BLOCK_SIZE];
-        ::arm_fir_fast_q15(&m_nxdnISincFilter, NXDNValsTmp, NXDNVals, RX_BLOCK_SIZE);
-
-        nxdnRX.samples(NXDNVals, rssi, RX_BLOCK_SIZE);
-      }
-
-      if (m_dmrEnable || m_ysfEnable) {
-        q15_t RRCVals[RX_BLOCK_SIZE];
-        ::arm_fir_fast_q15(&m_rrcFilter, samples, RRCVals, RX_BLOCK_SIZE);
+        if (m_p25Enable)
+          p25RX.samples(vals, rssi, RX_BLOCK_SIZE);
 
         if (m_ysfEnable)
-          ysfRX.samples(RRCVals, rssi, RX_BLOCK_SIZE);
+          ysfRX.samples(vals, rssi, RX_BLOCK_SIZE);
 
         if (m_dmrEnable) {
           if (m_duplex)
-            dmrIdleRX.samples(RRCVals, RX_BLOCK_SIZE);
+            dmrIdleRX.samples(vals, RX_BLOCK_SIZE);
           else
-            dmrDMORX.samples(RRCVals, rssi, RX_BLOCK_SIZE);
+            dmrDMORX.samples(vals, rssi, RX_BLOCK_SIZE);
         }
       }
 
+      if (m_nxdnEnable) {
+        q15_t vals[RX_BLOCK_SIZE];
+#if defined(USE_DCBLOCKER)
+        ::arm_fir_fast_q15(&m_boxcar10Filter, dcSamples, vals, RX_BLOCK_SIZE);
+#else
+        ::arm_fir_fast_q15(&m_boxcar10Filter, samples, vals, RX_BLOCK_SIZE);
+#endif
+        nxdnRX.samples(vals, rssi, RX_BLOCK_SIZE);
+      }
+
       if (m_fmEnable) {
         bool cos = getCOSInt();
 #if defined(USE_DCBLOCKER)
@@ -366,61 +309,59 @@ void CIO::process()
       }
     } else if (m_modemState == STATE_DSTAR) {
       if (m_dstarEnable) {
-        q15_t GMSKVals[RX_BLOCK_SIZE];
+        q15_t vals[RX_BLOCK_SIZE];
 #if defined(USE_DCBLOCKER)
-        ::arm_fir_fast_q15(&m_gaussianFilter, dcSamples, GMSKVals, RX_BLOCK_SIZE);
+        ::arm_fir_fast_q15(&m_boxcar5Filter, dcSamples, vals, RX_BLOCK_SIZE);
 #else
-        ::arm_fir_fast_q15(&m_gaussianFilter, samples, GMSKVals, RX_BLOCK_SIZE);
+        ::arm_fir_fast_q15(&m_boxcar5Filter, samples, vals, RX_BLOCK_SIZE);
 #endif
-        dstarRX.samples(GMSKVals, rssi, RX_BLOCK_SIZE);
+
+        dstarRX.samples(vals, rssi, RX_BLOCK_SIZE);
       }
     } else if (m_modemState == STATE_DMR) {
       if (m_dmrEnable) {
-        q15_t DMRVals[RX_BLOCK_SIZE];
-        ::arm_fir_fast_q15(&m_rrcFilter, samples, DMRVals, RX_BLOCK_SIZE);
+        q15_t vals[RX_BLOCK_SIZE];
+        ::arm_fir_fast_q15(&m_boxcar5Filter, samples, vals, RX_BLOCK_SIZE);
 
         if (m_duplex) {
           // If the transmitter isn't on, use the DMR idle RX to detect the wakeup CSBKs
           if (m_tx)
-            dmrRX.samples(DMRVals, rssi, control, RX_BLOCK_SIZE);
+            dmrRX.samples(vals, rssi, control, RX_BLOCK_SIZE);
           else
-            dmrIdleRX.samples(DMRVals, RX_BLOCK_SIZE);
+            dmrIdleRX.samples(vals, RX_BLOCK_SIZE);
         } else {
-          dmrDMORX.samples(DMRVals, rssi, RX_BLOCK_SIZE);
+          dmrDMORX.samples(vals, rssi, RX_BLOCK_SIZE);
         }
       }
     } else if (m_modemState == STATE_YSF) {
       if (m_ysfEnable) {
-        q15_t YSFVals[RX_BLOCK_SIZE];
+        q15_t vals[RX_BLOCK_SIZE];
 #if defined(USE_DCBLOCKER)
-        ::arm_fir_fast_q15(&m_rrcFilter, dcSamples, YSFVals, RX_BLOCK_SIZE);
+        ::arm_fir_fast_q15(&m_boxcar5Filter, dcSamples, vals, RX_BLOCK_SIZE);
 #else
-        ::arm_fir_fast_q15(&m_rrcFilter, samples, YSFVals, RX_BLOCK_SIZE);
+        ::arm_fir_fast_q15(&m_boxcar5Filter, samples, vals, RX_BLOCK_SIZE);
 #endif
-        ysfRX.samples(YSFVals, rssi, RX_BLOCK_SIZE);
+        ysfRX.samples(vals, rssi, RX_BLOCK_SIZE);
       }
     } else if (m_modemState == STATE_P25) {
       if (m_p25Enable) {
-        q15_t P25Vals[RX_BLOCK_SIZE];
+        q15_t vals[RX_BLOCK_SIZE];
 #if defined(USE_DCBLOCKER)
-        ::arm_fir_fast_q15(&m_boxcarFilter, dcSamples, P25Vals, RX_BLOCK_SIZE);
+        ::arm_fir_fast_q15(&m_boxcar5Filter, dcSamples, vals, RX_BLOCK_SIZE);
 #else
-        ::arm_fir_fast_q15(&m_boxcarFilter, samples, P25Vals, RX_BLOCK_SIZE);
+        ::arm_fir_fast_q15(&m_boxcar5Filter, samples, vals, RX_BLOCK_SIZE);
 #endif
-        p25RX.samples(P25Vals, rssi, RX_BLOCK_SIZE);
+        p25RX.samples(vals, rssi, RX_BLOCK_SIZE);
       }
-    } else if (m_modemState == STATE_NXDN) {
+	} else if (m_modemState == STATE_NXDN) {
       if (m_nxdnEnable) {
-        q15_t NXDNValsTmp[RX_BLOCK_SIZE];
+        q15_t vals[RX_BLOCK_SIZE];
 #if defined(USE_DCBLOCKER)
-        ::arm_fir_fast_q15(&m_nxdnFilter, dcSamples, NXDNValsTmp, RX_BLOCK_SIZE);
+        ::arm_fir_fast_q15(&m_boxcar10Filter, dcSamples, vals, RX_BLOCK_SIZE);
 #else
-        ::arm_fir_fast_q15(&m_nxdnFilter, samples, NXDNValsTmp, RX_BLOCK_SIZE);
+        ::arm_fir_fast_q15(&m_boxcar10Filter, samples, vals, RX_BLOCK_SIZE);
 #endif
-        q15_t NXDNVals[RX_BLOCK_SIZE];
-        ::arm_fir_fast_q15(&m_nxdnISincFilter, NXDNValsTmp, NXDNVals, RX_BLOCK_SIZE);
-
-        nxdnRX.samples(NXDNVals, rssi, RX_BLOCK_SIZE);
+        nxdnRX.samples(vals, rssi, RX_BLOCK_SIZE);
       }
     } else if (m_modemState == STATE_FM) {
       bool cos = getCOSInt();
@@ -430,10 +371,13 @@ void CIO::process()
       fm.samples(cos, samples, RX_BLOCK_SIZE);
 #endif
     } else if (m_modemState == STATE_DSTARCAL) {
-      q15_t GMSKVals[RX_BLOCK_SIZE];
-      ::arm_fir_fast_q15(&m_gaussianFilter, samples, GMSKVals, RX_BLOCK_SIZE);
-
-      calDStarRX.samples(GMSKVals, RX_BLOCK_SIZE);
+      q15_t vals[RX_BLOCK_SIZE];
+#if defined(USE_DCBLOCKER)
+      ::arm_fir_fast_q15(&m_boxcar5Filter, dcSamples, vals, RX_BLOCK_SIZE);
+#else
+      ::arm_fir_fast_q15(&m_boxcar5Filter, samples, vals, RX_BLOCK_SIZE);
+#endif
+      calDStarRX.samples(vals, RX_BLOCK_SIZE);
     } else if (m_modemState == STATE_RSSICAL) {
       calRSSI.samples(rssi, RX_BLOCK_SIZE);
     }

IO.h

@@ -66,16 +66,10 @@ private:
   arm_biquad_casd_df1_inst_q31 m_dcFilter;
   q31_t                        m_dcState[4];
 
-  arm_fir_instance_q15 m_rrcFilter;
-  arm_fir_instance_q15 m_gaussianFilter;
-  arm_fir_instance_q15 m_boxcarFilter;
-  arm_fir_instance_q15 m_nxdnFilter;
-  arm_fir_instance_q15 m_nxdnISincFilter;
-  q15_t                m_rrcState[70U];           // NoTaps + BlockSize - 1, 42 + 20 - 1 plus some spare
-  q15_t                m_gaussianState[40U];      // NoTaps + BlockSize - 1, 12 + 20 - 1 plus some spare
-  q15_t                m_boxcarState[30U];        // NoTaps + BlockSize - 1, 6 + 20 - 1 plus some spare
-  q15_t                m_nxdnState[110U];         // NoTaps + BlockSize - 1, 82 + 20 - 1 plus some spare
-  q15_t                m_nxdnISincState[60U];     // NoTaps + BlockSize - 1, 32 + 20 - 1 plus some spare
+  arm_fir_instance_q15 m_boxcar5Filter;
+  arm_fir_instance_q15 m_boxcar10Filter;
+  q15_t                m_boxcar5State[30U];        // NoTaps + BlockSize - 1, 6 + 20 - 1 plus some spare
+  q15_t                m_boxcar10State[40U];       // NoTaps + BlockSize - 1, 10 + 20 - 1 plus some spare
 
   bool                 m_pttInvert;
   q15_t                m_rxLevel;

Makefile

@@ -155,7 +155,7 @@ 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

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;

SerialPort.cpp

@@ -103,7 +103,7 @@ const uint8_t MMDVM_DEBUG5       = 0xF5U;
 #define	HW_TYPE	"MMDVM"
 #endif
 
-#define DESCRIPTION "20200512 (D-Star/DMR/System Fusion/P25/NXDN/POCSAG/FM)"
+#define DESCRIPTION "20200520 (D-Star/DMR/System Fusion/P25/NXDN/POCSAG/FM)"
 
 #if defined(GITVERSION)
 #define concat(h, a, b, c) h " " a " " b " GitID #" c ""
@@ -592,8 +592,7 @@ void CSerialPort::process()
         m_buffer[0U] = c;
         m_ptr = 1U;
         m_len = 0U;
-      }
-      else {
+      } else {
         m_ptr = 0U;
         m_len = 0U;
       }

SerialSTM.cpp

@@ -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

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_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