1 files changed, 78 insertions, 0 deletions
diff --git a/lib/msp430/TimerSerial.h b/lib/msp430/TimerSerial.h
new file mode 100644
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--- /dev/null
+++ b/lib/msp430/TimerSerial.h
@@ -0,0 +1,78 @@
+/*
+  TimerSerial.h - Timer based serial library for MSP430
+  Copyright (c) 2012 Robert Wessels.  All right reserved.
+  Modeled after Nicholas Zambetti's HardwareSerial.
+  and
+  msp430softserial by Rick Kimball
+  https://github.com/RickKimball/msp430softserial/
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef TimerSerial_h
+#define TimerSerial_h
+
+#include <inttypes.h>
+#include <Stream.h>
+
+#define TX_PIN BIT1	// TXD on P1.1
+#define RX_PIN BIT2	// RXD on P1.2
+
+// running at < 3MHz requires a lower baud rate
+#ifndef TIMERSERIAL_BAUD
+#if F_CPU > 1000000
+    #define TIMERSERIAL_BAUD 9600
+#else
+    #define TIMERSERIAL_BAUD 4800
+#endif
+#endif
+
+#if defined(__MSP430G2231__)
+ #define NEEDS_BUFF_PTR 1 // sadly, the g2231 seems to have a problem if we don't use the original structure
+ struct ring_buffer_ts; // forward declaration
+#else
+ #define NEEDS_BUFF_PTR 0 // everything else is happy to run fully optimized
+#endif
+
+class TimerSerial : public Stream
+{
+public:
+    TimerSerial(void);
+
+    void begin(unsigned long baud = TIMERSERIAL_BAUD);
+    void end(void);
+
+    virtual size_t write(uint8_t byte);
+    virtual int read(void);
+    virtual int available(void);
+    virtual void flush(void);
+    virtual int peek(void);
+
+    using Print::write;
+
+private:
+
+#if NEEDS_BUFF_PTR
+    ring_buffer_ts *_rx_buffer; // gcc seems to get confused on the g2231 without this
+    ring_buffer_ts *_tx_buffer;
+#endif
+
+};
+
+#if !defined(__MSP430_HAS_USCI__) && !defined(__MSP430_HAS_EUSCI_A0__)
+extern TimerSerial Serial;
+#endif
+extern void serialEventRun(void) __attribute__((weak));
+#endif