Merge pull request #3207 from chromhelm/master

Fixed bug with HWSerial flushing
arduino · May 28, 2015 · f816e76 · f816e76
2 parents bd8f793 + ed331a8
commit f816e76
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/hardware/arduino/avr/cores/arduino/HardwareSerial.cpp b/hardware/arduino/avr/cores/arduino/HardwareSerial.cpp
@@ -220,6 +220,7 @@ size_t HardwareSerial::write(uint8_t c)
   if (_tx_buffer_head == _tx_buffer_tail && bit_is_set(*_ucsra, UDRE0)) {
     *_udr = c;
     sbi(*_ucsra, TXC0);
+     _written = true;
     return 1;
   }
   tx_buffer_index_t i = (_tx_buffer_head + 1) % SERIAL_TX_BUFFER_SIZE;