Changed ATmega168 port to ATmega328 on Uno R3 with DFR0259 RS485 shield (#784)

* Changed ATmega168 example for ATmega328 on Arduino Uno R3 with DFR0259 RS485 shield. Added ADC interface from BDK port and mapped to some AV objects. Removed MS/TP MAC address DIP switch GPIO and moved MS/TP configuration to AV objects. Added AV units property. Added some Uno R3 Digital Inputs and outputs mapped to some BV. Added AVR EEPROM from BDK port and mapped some non-volatile data including MAC address and max manager and baud rate, device ID and names and description and location.

ports/atmega328/rs485.h

@@ -0,0 +1,41 @@
+/**
+ * @brief The module handles API for the RS-485 port
+ * @author Steve Karg <skarg@users.sourceforge.net>
+ * @date 2007
+ * @copyright SPDX-License-Identifier: MIT
+ */
+#ifndef RS485_H
+#define RS485_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+unsigned long RS485_Timer_Silence(void);
+
+void RS485_Timer_Silence_Reset(void);
+
+void RS485_Initialize(void);
+
+void RS485_Transmitter_Enable(bool enable);
+
+void RS485_Send_Data(
+    const uint8_t *buffer, /* data to send */
+    uint16_t nbytes); /* number of bytes of data */
+
+bool RS485_ReceiveError(void);
+bool RS485_DataAvailable(uint8_t *data);
+
+void RS485_Turnaround_Delay(void);
+uint32_t RS485_Get_Baud_Rate(void);
+bool RS485_Set_Baud_Rate(uint32_t baud);
+uint32_t RS485_Baud_Rate_From_Kilo(uint8_t baud_k);
+
+void RS485_LED_Timers(void);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+#endif