arduino
diff --git a/‎cores/arduino/UARTClass.cpp
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+5Lines changed: 5 additions & 0 deletions b/‎cores/arduino/UARTClass.cpp
Copy file name to clipboardExpand all lines: cores/arduino/UARTClass.cpp
+5Lines changed: 5 additions & 0 deletions
diff --git a/‎cores/arduino/UARTClass.h
Copy file name to clipboardExpand all lines: cores/arduino/UARTClass.h
+1Lines changed: 1 addition & 0 deletions b/‎cores/arduino/UARTClass.h
Copy file name to clipboardExpand all lines: cores/arduino/UARTClass.h
+1Lines changed: 1 addition & 0 deletions
@@ -142,6 +142,11 @@ void UARTClass::flush( void )
    ;
 }
 
+bool UARTClass::isFlushed( void )
+{
+  return ((_pUart->UART_SR & UART_SR_TXRDY) == UART_SR_TXRDY) && (_tx_buffer->_iTail == _tx_buffer->_iHead);
+}
+
 size_t UARTClass::write( const uint8_t uc_data )
 {
   // Is the hardware currently busy?
 
@@ -52,6 +52,7 @@ class UARTClass : public HardwareSerial
     int peek(void);
     int read(void);
     void flush(void);
+    bool isFlushed(void);
     size_t write(const uint8_t c);
     using Print::write; // pull in write(str) and write(buf, size) from Print
Original file line number	Diff line number	Diff line change
`@@ -142,6 +142,11 @@ void UARTClass::flush( void )`
`142`	`142`	`;`
`143`	`143`	`}`
`144`	`144`
	`145`	`+bool UARTClass::isFlushed( void )`
	`146`	`+{`
	`147`	`+ return ((_pUart->UART_SR & UART_SR_TXRDY) == UART_SR_TXRDY) && (_tx_buffer->_iTail == _tx_buffer->_iHead);`
	`148`	`+}`
	`149`	`+`
`145`	`150`	`size_t UARTClass::write( const uint8_t uc_data )`
`146`	`151`	`{`
`147`	`152`	`// Is the hardware currently busy?`