Update flush to also wait for TX buffer to empty

sandeepmistry · cmaglie · commit aa400fd4342a · 2017-07-11T12:58:15.000+02:00
diff --git a/cores/arduino/Uart.cpp b/cores/arduino/Uart.cpp
@@ -55,6 +55,8 @@ void Uart::end()
 
 void Uart::flush()
 {
+  while(txBuffer.available()); // wait until TX buffer is empty
+
   sercom->flushUART();
 }
 

Original file line number	Diff line number	Diff line change
`@@ -55,6 +55,8 @@ void Uart::end()`
`55`	`55`
`56`	`56`	`void Uart::flush()`
`57`	`57`	`{`
	`58`	`+ while(txBuffer.available()); // wait until TX buffer is empty`
	`59`	`+`
`58`	`60`	`sercom->flushUART();`
`59`	`61`	`}`
`60`	`62`