Specify rx and tx pin in the constructor

Author: olivluca

src/TJA1020.cpp

@@ -13,57 +13,18 @@
 #include <Lin_Interface.hpp>
 // #include <Arduino.h>
 
-//-----------------------------------------------------------------------------
-// Pin definitions, we need the TX Pin to control the TJA1020 statemachine
-// See "HardwareSerial.cpp"
-#ifdef ESP32
-    #ifndef TX0
-    #define TX0 1
-    #endif
-
-    #ifndef TX1
-    #define TX1 10
-    #endif
-
-    #ifndef TX2
-    #define TX2 17
-    #endif
-#elif ESP8266
-    #ifndef TX0
-    #define TX0 1
-    #endif
-
-    #ifndef TX1
-    #define TX1 15
-    #endif
-#else
-    #error "Need Pin definitions for LIN Transceiver"
-#endif
-
 //-----------------------------------------------------------------------------
 // constructor
 
 /// Provides HW UART via TJA1020 Chip
-Lin_TJA1020::Lin_TJA1020(int uart_nr, uint32_t _baud, int8_t nslpPin) : Lin_Interface(uart_nr)
+Lin_TJA1020::Lin_TJA1020(int uart_nr, uint32_t _baud, int8_t rxPin, int8_t txPin, int8_t nslpPin) : Lin_Interface(uart_nr)
 {
-    // Use typical pin configuration if interfaced by uart_nr
-    //############
-    // See "HardwareSerial.cpp"
-    if(uart_nr == 0) {
-        _tx_pin = TX0;
-    }
-    if(uart_nr == 1) {
-        _tx_pin = TX1;
-    }
-#ifdef ESP32
-    if(uart_nr == 2) {
-        _tx_pin = TX2;
-    }
-#endif
-    //############
+    _tx_pin = txPin;
 
     // use default baud rate, if not specified
     Lin_Interface::baud = _baud ? _baud : 19200;
+    Lin_Interface::rxPin = rxPin;
+    Lin_Interface::txPin = txPin;
 
     _nslp_pin = nslpPin;
 }

src/TJA1020.hpp

@@ -21,7 +21,7 @@ class Lin_TJA1020 : public Lin_Interface
     /// @param uart_nr Index of HW UART to be used (0..2)
     /// @param baud Baud rate for RX/TX (0 = default 19200 baud)
     /// @param nslpPin /SLP Pin to control TJA1020
-    Lin_TJA1020(int uart_nr, uint32_t _baud, int8_t nslpPin);
+    Lin_TJA1020(int uart_nr, uint32_t _baud, int8_t rxPin, int8_t txPin, int8_t nslpPin);
 
     bool readFrame(uint8_t FrameID);
     void writeFrame(uint8_t FrameID, size_t size);