Arduino DUE (SAM3X8E) DMX in and out deployed on hardware USART (updated DmxDue required)

DUE_to_replace_sysfile/variant.cpp

@@ -325,7 +325,7 @@ RingBuffer tx_buffer2;
 RingBuffer tx_buffer3;
 RingBuffer tx_buffer4;
 
-USARTClass Serial1(USART0, USART0_IRQn, ID_USART0, &rx_buffer2, &tx_buffer2);
+///USARTClass Serial1(USART0, USART0_IRQn, ID_USART0, &rx_buffer2, &tx_buffer2);
 void serialEvent1() __attribute__((weak));
 void serialEvent1() { }
 USARTClass Serial2(USART1, USART1_IRQn, ID_USART1, &rx_buffer3, &tx_buffer3);
@@ -336,28 +336,30 @@ void serialEvent3() __attribute__((weak));
 void serialEvent3() { }
 
 // IT handlers
-void USART0_Handler(void)
-{
-  Serial1.IrqHandler();
-}
 
-///void USART1_Handler(void)
+///void USART0_Handler(void)
 ///{
-///  Serial2.IrqHandler();
+///  Serial1.IrqHandler();
 ///}
 
+void USART1_Handler(void)
+{
+  Serial2.IrqHandler();
+}
+
 void USART3_Handler(void)
 {
   Serial3.IrqHandler();
 }
 
+
 // ----------------------------------------------------------------------------
 
 void serialEventRun(void)
 {
   if (Serial.available()) serialEvent();
-  if (Serial1.available()) serialEvent1();
-///  if (Serial2.available()) serialEvent2();
+///  if (Serial1.available()) serialEvent1();
+  if (Serial2.available()) serialEvent2();
   if (Serial3.available()) serialEvent3();
 }
 

README.md

@@ -51,14 +51,17 @@ For patched libraries, appropriate GitHub repo URL provided:
 * Ethernet                              https://github.com/anklimov/Ethernet
 * SPI (standard)
 
-Portation from AVR Mega 2560 to SAM3X8E (Arduino DUE) and ESP is not completed yet.
-Core is mostly migrated 
+Portation from AVR Mega 2560 to SAM3X8E (Arduino DUE) is done since v 0.96
+Next step ESP portation
+
+#Platforms specific details:
 
 AVR version is basic and have all functions
+*DMX-out is software (DMXSimple) on pin3
 
-Another platforms limitations (todo):
 SAM3X8E:
-*DMX-in - not deployed yet
+*default PWM frequency 
+*both, DMX-in and DMX-out are hardware USART based. Use USART1 (pins 18 and 19) for DMX-out and DMX-in
 
 ESP:
 *Wifi instead Ether not implemented yet