Add config parameter to RS485 initialization (#27)

* Update RS485CommClass.cpp

Added RS485Config

* Update RS485CommClass.h

* Update RS485_fullduplex.ino

* Update RS485_halfduplex.ino

* Removed = in cpp

Author: svollenweider

examples/RS485_fullduplex/RS485_fullduplex.ino

@@ -38,7 +38,7 @@ void setup() {
     // - Half Duplex
     // - No A/B and Y/Z 120 Ohm termination enabled
     // Enable the RS485/RS232 system
-    MachineControl_RS485Comm.begin(115200, 0, 500); // Specify baudrate, and preamble and postamble times for RS485 communication
+    MachineControl_RS485Comm.begin(115200, SERIAL_8N1, 0, 500); // Specify baudrate, serial_config and preamble and postamble times for RS485 communication
 
     // Enable Full Duplex mode
     // This will also enable A/B and Y/Z 120 Ohm termination resistors
@@ -70,4 +70,4 @@ void loop() {
 
         sendNow = millis() + sendInterval;
     }
-}
+}

examples/RS485_halfduplex/RS485_halfduplex.ino

@@ -37,7 +37,7 @@ void setup() {
     // - Half Duplex
     // - No A/B and Y/Z 120 Ohm termination enabled
     // Enable the RS485/RS232 system
-    MachineControl_RS485Comm.begin(115200, 0, 500); // Specify baudrate, and preamble and postamble times for RS485 communication
+    MachineControl_RS485Comm.begin(115200, SERIAL_8N1, 0, 500); // Specify baudrate, serial config and preamble and postamble times for RS485 communication
 
     // Start in receive mode
     MachineControl_RS485Comm.receive();
@@ -65,4 +65,4 @@ void loop() {
 
         sendNow = millis() + sendInterval;
     }
-}
+}

src/RS485CommClass.cpp

@@ -17,7 +17,7 @@ RS485CommClass::RS485CommClass(arduino::UART& uart_itf, PinName rs_tx_pin, PinNa
 RS485CommClass::~RS485CommClass() 
 { }
 
-void RS485CommClass::begin(unsigned long baudrate, int predelay, int postdelay) {
+void RS485CommClass::begin(unsigned long baudrate, uint16_t config, int predelay, int postdelay) {
     /* Pinout configuration */
     pinMode(PinNameToIndex(MC_RS485_TX_PIN), OUTPUT);
     pinMode(PinNameToIndex(MC_RS485_RX_PIN), OUTPUT);
@@ -45,7 +45,7 @@ void RS485CommClass::begin(unsigned long baudrate, int predelay, int postdelay)
     _enable();
 
     /* Call begin() base class to initialize RS485 communication */
-    RS485Class::begin(baudrate, predelay, postdelay);
+    RS485Class::begin(baudrate, config, predelay, postdelay);
 
 	return;
 }
@@ -92,4 +92,4 @@ void RS485CommClass::_disable() {
 
 arduino::UART 	_UART4_	{MC_RS485_TX_PIN, MC_RS485_RX_PIN, NC, NC};
 RS485CommClass MachineControl_RS485Comm(_UART4_);
-/**** END OF FILE ****/
+/**** END OF FILE ****/

src/RS485CommClass.h

@@ -54,10 +54,11 @@ class RS485CommClass : public RS485Class {
          * This method initializes the RS485 communication protocol with the specified baud rate and pre/post delays.
          *
          * @param baudrate The desired baud rate for the RS485 communication.
+         * @param config The desired Serial config (bits, parity and stopbits), see HardwareSerial.h
          * @param predelay The delay before sending data in the RS485 communication (default: RS485_DEFAULT_PRE_DELAY).
          * @param postdelay The delay after sending data in the RS485 communication (default: RS485_DEFAULT_POST_DELAY).
          */
-        void begin(unsigned long baudrate = 115200, int predelay = RS485_DEFAULT_PRE_DELAY, int postdelay = RS485_DEFAULT_POST_DELAY);
+        void begin(unsigned long baudrate = 115200, uint16_t config = SERIAL_8N1, int predelay = RS485_DEFAULT_PRE_DELAY, int postdelay = RS485_DEFAULT_POST_DELAY);
 
         /**
          * @brief Close the RS485 communication protocol.