Merge pull request #3207 from chromhelm/master

facchinm · facchinm · commit f816e76d4755 · 2015-05-28T09:44:46.000+02:00
Fixed bug with HWSerial flushing
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;

Original file line number	Diff line number	Diff line change
`@@ -220,6 +220,7 @@ size_t HardwareSerial::write(uint8_t c)`
`220`	`220`	`if (_tx_buffer_head == _tx_buffer_tail && bit_is_set(*_ucsra, UDRE0)) {`
`221`	`221`	`*_udr = c;`
`222`	`222`	`sbi(*_ucsra, TXC0);`
	`223`	`+ _written = true;`
`223`	`224`	`return 1;`
`224`	`225`	`}`
`225`	`226`	`tx_buffer_index_t i = (_tx_buffer_head + 1) % SERIAL_TX_BUFFER_SIZE;`