From 5b1afe32cf7496acea8182278aca83f59e8384e3 Mon Sep 17 00:00:00 2001 From: Florian Pritz Date: Mon, 11 Feb 2013 22:58:16 +0100 Subject: Make code launchpad/energia compatible Signed-off-by: Florian Pritz --- lib/msp430/Wire.h | 94 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 lib/msp430/Wire.h (limited to 'lib/msp430/Wire.h') diff --git a/lib/msp430/Wire.h b/lib/msp430/Wire.h new file mode 100644 index 0000000..3f633c4 --- /dev/null +++ b/lib/msp430/Wire.h @@ -0,0 +1,94 @@ +/* + ************************************************************************ + * Wire.h + * + * Arduino core files for MSP430 + * Copyright (c) 2012 Robert Wessels. All right reserved. + * + * + *********************************************************************** + Derived from: + TwoWire.h - TWI/I2C library for Arduino & Wiring + Copyright (c) 2006 Nicholas Zambetti. All right reserved. + + 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 + + Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts +*/ + +#ifndef TwoWire_h +#define TwoWire_h + +#include +#include "Stream.h" + +#define BUFFER_LENGTH 16 + +class TwoWire : public Stream +{ + private: + static uint8_t rxBuffer[]; + static uint8_t rxBufferIndex; + static uint8_t rxBufferLength; + + static uint8_t txAddress; + static uint8_t txBuffer[]; + static uint8_t txBufferIndex; + static uint8_t txBufferLength; + + static uint8_t transmitting; + static void (*user_onRequest)(void); + static void (*user_onReceive)(int); + static void onRequestService(void); + static void onReceiveService(uint8_t*, int); + public: + TwoWire(); + void begin(); + void begin(uint8_t); + void begin(int); + void beginTransmission(uint8_t); + void beginTransmission(int); + uint8_t endTransmission(void); + uint8_t endTransmission(uint8_t); + uint8_t requestFrom(uint8_t, uint8_t); + uint8_t requestFrom(uint8_t, uint8_t, uint8_t); + uint8_t requestFrom(int, int); + uint8_t requestFrom(int, int, int); + virtual size_t write(uint8_t); + virtual size_t write(const uint8_t *, size_t); + virtual int available(void); + virtual int read(void); + virtual int peek(void); + virtual void flush(void); +#define USCI_ERROR "\n*********\nI2C Slave is not implemented for this MSP430. \nConsider using using a MSP430 with USCI peripheral e.g. MSP430G2553.\n*********\n" +#if defined(__MSP430_HAS_USCI__) || defined(__MSP430_HAS_EUSCI_A0__) + void onReceive( void (*)(int) ); + void onRequest( void (*)(void) ); +#else + void onReceive( void (*)(int) ) __attribute__ ((error(USCI_ERROR))); + void onRequest( void (*)(void) ) __attribute__ ((error(USCI_ERROR))); +#endif + + inline size_t write(unsigned long n) { return write((uint8_t)n); } + inline size_t write(long n) { return write((uint8_t)n); } + inline size_t write(unsigned int n) { return write((uint8_t)n); } + inline size_t write(int n) { return write((uint8_t)n); } + using Print::write; +}; + +extern TwoWire Wire; + +#endif + -- cgit v1.2.3-24-g4f1b