From 76ca382f003a17fd4d30cf0a851f42b1af014d0f Mon Sep 17 00:00:00 2001
From: Sandeep Mistry <s.mistry@arduino.cc>
Date: Fri, 3 Jun 2016 09:28:09 -0400
Subject: [PATCH] Add Uart::availableForWrite()
---
cores/arduino/Uart.cpp | 5 +++++
cores/arduino/Uart.h | 1 +
2 files changed, 6 insertions(+)
diff --git a/cores/arduino/Uart.cpp b/cores/arduino/Uart.cpp
index 7a718e2c..13e0ebaa 100644
--- a/cores/arduino/Uart.cpp
+++ b/cores/arduino/Uart.cpp
@@ -77,6 +77,11 @@ int Uart::available()
return rxBuffer.available();
}
+int Uart::availableForWrite()
+{
+ return (sercom->isDataRegisterEmptyUART() ? 1 : 0);
+}
+
int Uart::peek()
{
return rxBuffer.peek();
diff --git a/cores/arduino/Uart.h b/cores/arduino/Uart.h
index 7115da74..02d30bd4 100644
--- a/cores/arduino/Uart.h
+++ b/cores/arduino/Uart.h
@@ -32,6 +32,7 @@ class Uart : public HardwareSerial
void begin(unsigned long baudrate, uint16_t config);
void end();
int available();
+ int availableForWrite();
int peek();
int read();
void flush();
--
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