Make XPLAINBridge serial bridge much more reliable for the reception of...

Make XPLAINBridge serial bridge much more reliable for the reception of characters from the XMEGA through the software UART interface.

Projects/XPLAINBridge/Lib/SoftUART.c

@@ -79,18 +79,12 @@ ISR(INT0_vect, ISR_BLOCK)
 	RX_Data    = 0;
 	RX_BitMask = (1 << 0);
 
-	/* Check that the start bit is still low to prevent noise from triggering a reception */
-	if (!(SRXPIN & (1 << SRX)))
-	{
-		/* Clear reception channel ISR flag in case it is pending */
-		TIFR1 = (1 << OCF1A);
-
-		/* Still low, enable bit receive ISR */
-		TIMSK1 =  (1 << OCIE1A);		
+	/* Clear reception channel ISR flag and enable the bit reception ISR */
+	TIFR1  = (1 << OCF1A);
+	TIMSK1 = (1 << OCIE1A);		
 
-		/* Clear the start bit detection ISR flag */
-		EIMSK &= ~(1 << INT0);
-	}
+	/* Disable start bit detection ISR while the next byte is received */
+	EIMSK &= ~(1 << INT0);
 }
 
 /** ISR to manage the reception of bits to the software UART. */