Add extra idle frames at the start of a DMR DMO transmission.

DMRDMOTX.h

@@ -37,6 +37,8 @@ public:
 
   uint8_t getSpace() const;
 
+  void setColorCode(uint8_t colorCode);
+
 private:
   CSerialRB            m_fifo;
   arm_fir_instance_q15 m_modFilter;
@@ -44,7 +46,9 @@ private:
   uint8_t              m_poBuffer[1200U];
   uint16_t             m_poLen;
   uint16_t             m_poPtr;
-  uint16_t             m_txDelay;
+  uint32_t             m_txDelay;
+  uint8_t              m_idle[DMR_FRAME_LENGTH_BYTES];
+  uint32_t             m_frameCount;
 
   void writeByte(uint8_t c);
 };