Mega4809 internal review (#1)

* fixed typos in UART

Author: espreng

cores/arduino/UART1.cpp

@@ -45,14 +45,13 @@ ISR(HWSERIAL1_RXC_VECTOR)
 #error "Don't know what the Data Received interrupt vector is called for Serial1"
 #endif
 
-//!!BUG in headerfile. The RXC and DRE vectors are swapped!!
 #if defined(HWSERIAL1_DRE_VECTOR)
 ISR(HWSERIAL1_DRE_VECTOR)
 {
   Serial1._tx_data_empty_irq();
 }
 #else
-#error "Don't know what the Data Received interrupt vector is called for Serial"
+#error "Don't know what the Data Register Empty interrupt vector is called for Serial1"
 #endif
 
 #if defined(HWSERIAL1)

cores/arduino/UART2.cpp

@@ -42,17 +42,16 @@ ISR(HWSERIAL2_RXC_VECTOR)
   Serial2._rx_complete_irq();
 }
 #else
-#error "Don't know what the Data Received interrupt vector is called for Serial1"
+#error "Don't know what the Data Received interrupt vector is called for Serial2"
 #endif
 
-//!!BUG in headerfile. The RXC and DRE vectors are swapped!!
 #if defined(HWSERIAL2_DRE_VECTOR)
 ISR(HWSERIAL2_DRE_VECTOR)
 {
   Serial2._tx_data_empty_irq();
 }
 #else
-#error "Don't know what the Data Received interrupt vector is called for Serial"
+#error "Don't know what the Data Register Empty interrupt vector is called for Serial2"
 #endif
 
 #if defined(HWSERIAL2)

cores/arduino/UART3.cpp

@@ -42,17 +42,16 @@ ISR(HWSERIAL3_RXC_VECTOR)
   Serial3._rx_complete_irq();
 }
 #else
-#error "Don't know what the Data Received interrupt vector is called for Serial1"
+#error "Don't know what the Data Received interrupt vector is called for Serial3"
 #endif
 
-//!!BUG in headerfile. The RXC and DRE vectors are swapped!!
 #if defined(HWSERIAL3_DRE_VECTOR)
 ISR(HWSERIAL3_DRE_VECTOR)
 {
   Serial3._tx_data_empty_irq();
 }
 #else
-#error "Don't know what the Data Received interrupt vector is called for Serial"
+#error "Don't know what the Data Register Empty interrupt vector is called for Serial3"
 #endif
 
 #if defined(HWSERIAL3)

cores/arduino/UART_private.h

@@ -1,5 +1,5 @@
 /*
-  HardwareSerial_private.h - Hardware serial library for Wiring
+  UART_private.h - Hardware serial library for Wiring
   Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
 
   This library is free software; you can redistribute it and/or
@@ -23,7 +23,7 @@
 
 #include "wiring_private.h"
 
-// this next line disables the entire HardwareSerial.cpp, 
+// this next line disables the entire UART.cpp, 
 // this is so I can support Attiny series and any other chip without a uart
 #if defined(HAVE_HWSERIAL0) || defined(HAVE_HWSERIAL1) || defined(HAVE_HWSERIAL2) || defined(HAVE_HWSERIAL3)