Finalise MSP430X CCS4 port and demo.

Demo/MSP430X_MSP430F5438_CCS4/Demo_Source/main.c

@@ -176,7 +176,7 @@ information.  */
 #define mainCOM_TEST_LED				( 1 )
 
 /* The baud rate used by the comtest tasks. */
-#define mainCOM_TEST_BAUD_RATE			( 115200 )
+#define mainCOM_TEST_BAUD_RATE			( 38400 )
 
 /* The maximum number of lines of text that can be displayed on the LCD. */
 #define mainMAX_LCD_LINES				( 8 )

Demo/MSP430X_MSP430F5438_CCS4/Demo_Source/serial.c

@@ -169,16 +169,14 @@ interrupt void prvUSCI_A1_ISR( void )
 signed char cChar;
 portBASE_TYPE xHigherPriorityTaskWoken = pdFALSE;
 
-	while( ( UCA1IFG & UCRXIFG ) != 0 )
+	if( ( UCA1IFG & UCRXIFG ) != 0 )
 	{
 		/* Get the character from the UART and post it on the queue of Rxed
 		characters. */
 		cChar = UCA1RXBUF;
 		xQueueSendFromISR( xRxedChars, &cChar, &xHigherPriorityTaskWoken );
 	}	
-	
-	/* If there is a Tx interrupt pending and the tx interrupts are enabled. */
-	if( ( UCA1IFG & UCTXIFG ) != 0 )
+	else if( ( UCA1IFG & UCTXIFG ) != 0 )
 	{
 		/* The previous character has been transmitted.  See if there are any
 		further characters waiting transmission. */