Inital commit... halfway through the project

3 files changed, 301 insertions, 0 deletions

diff --git a/libraries/SoftwareSerial/SoftwareSerial.cpp b/libraries/SoftwareSerial/SoftwareSerial.cpp
new file mode 100644
index 0000000..d068b14
--- /dev/null
+++ b/libraries/SoftwareSerial/SoftwareSerial.cpp
@@ -0,0 +1,227 @@
+/*

+  SoftwareSerial.cpp - Software serial library

+  Copyright (c) 2006 David A. Mellis.  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

+*/

+

+/******************************************************************************

+ * Includes

+ ******************************************************************************/

+

+#include "WConstants.h"

+#include "SoftwareSerial.h"

+

+/******************************************************************************

+ * Definitions

+ ******************************************************************************/

+

+/******************************************************************************

+ * Constructors

+ ******************************************************************************/

+

+SoftwareSerial::SoftwareSerial(uint8_t receivePin, uint8_t transmitPin)

+{

+  _receivePin = receivePin;

+  _transmitPin = transmitPin;

+  _baudRate = 0;

+}

+

+/******************************************************************************

+ * User API

+ ******************************************************************************/

+

+void SoftwareSerial::begin(long speed)

+{

+  _baudRate = speed;

+  _bitPeriod = 1000000 / _baudRate;

+

+  digitalWrite(_transmitPin, HIGH);

+  delayMicroseconds( _bitPeriod); // if we were low this establishes the end

+}

+

+int SoftwareSerial::read()

+{

+  int val = 0;

+  int bitDelay = _bitPeriod - clockCyclesToMicroseconds(50);

+  

+  // one byte of serial data (LSB first)

+  // ...--\    /--\/--\/--\/--\/--\/--\/--\/--\/--...

+  //	 \--/\--/\--/\--/\--/\--/\--/\--/\--/

+  //	start  0   1   2   3   4   5   6   7 stop

+

+  while (digitalRead(_receivePin));

+

+  // confirm that this is a real start bit, not line noise

+  if (digitalRead(_receivePin) == LOW) {

+    // frame start indicated by a falling edge and low start bit

+    // jump to the middle of the low start bit

+    delayMicroseconds(bitDelay / 2 - clockCyclesToMicroseconds(50));

+	

+    // offset of the bit in the byte: from 0 (LSB) to 7 (MSB)

+    for (int offset = 0; offset < 8; offset++) {

+	// jump to middle of next bit

+	delayMicroseconds(bitDelay);

+	

+	// read bit

+	val |= digitalRead(_receivePin) << offset;

+    }

+	

+    delayMicroseconds(_bitPeriod);

+    

+    return val;

+  }

+  

+  return -1;

+}

+

+void SoftwareSerial::print(uint8_t b)

+{

+  if (_baudRate == 0)

+    return;

+    

+  int bitDelay = _bitPeriod - clockCyclesToMicroseconds(50); // a digitalWrite is about 50 cycles

+  byte mask;

+

+  digitalWrite(_transmitPin, LOW);

+  delayMicroseconds(bitDelay);

+

+  for (mask = 0x01; mask; mask <<= 1) {

+    if (b & mask){ // choose bit

+      digitalWrite(_transmitPin,HIGH); // send 1

+    }

+    else{

+      digitalWrite(_transmitPin,LOW); // send 1

+    }

+    delayMicroseconds(bitDelay);

+  }

+

+  digitalWrite(_transmitPin, HIGH);

+  delayMicroseconds(bitDelay);

+}

+

+void SoftwareSerial::print(const char *s)

+{

+  while (*s)

+    print(*s++);

+}

+

+void SoftwareSerial::print(char c)

+{

+  print((uint8_t) c);

+}

+

+void SoftwareSerial::print(int n)

+{

+  print((long) n);

+}

+

+void SoftwareSerial::print(unsigned int n)

+{

+  print((unsigned long) n);

+}

+

+void SoftwareSerial::print(long n)

+{

+  if (n < 0) {

+    print('-');

+    n = -n;

+  }

+  printNumber(n, 10);

+}

+

+void SoftwareSerial::print(unsigned long n)

+{

+  printNumber(n, 10);

+}

+

+void SoftwareSerial::print(long n, int base)

+{

+  if (base == 0)

+    print((char) n);

+  else if (base == 10)

+    print(n);

+  else

+    printNumber(n, base);

+}

+

+void SoftwareSerial::println(void)

+{

+  print('\r');

+  print('\n');  

+}

+

+void SoftwareSerial::println(char c)

+{

+  print(c);

+  println();  

+}

+

+void SoftwareSerial::println(const char c[])

+{

+  print(c);

+  println();

+}

+

+void SoftwareSerial::println(uint8_t b)

+{

+  print(b);

+  println();

+}

+

+void SoftwareSerial::println(int n)

+{

+  print(n);

+  println();

+}

+

+void SoftwareSerial::println(long n)

+{

+  print(n);

+  println();  

+}

+

+void SoftwareSerial::println(unsigned long n)

+{

+  print(n);

+  println();  

+}

+

+void SoftwareSerial::println(long n, int base)

+{

+  print(n, base);

+  println();

+}

+

+// Private Methods /////////////////////////////////////////////////////////////

+

+void SoftwareSerial::printNumber(unsigned long n, uint8_t base)

+{

+  unsigned char buf[8 * sizeof(long)]; // Assumes 8-bit chars. 

+  unsigned long i = 0;

+

+  if (n == 0) {

+    print('0');

+    return;

+  } 

+

+  while (n > 0) {

+    buf[i++] = n % base;

+    n /= base;

+  }

+

+  for (; i > 0; i--)

+    print((char) (buf[i - 1] < 10 ? '0' + buf[i - 1] : 'A' + buf[i - 1] - 10));

+}

diff --git a/libraries/SoftwareSerial/SoftwareSerial.h b/libraries/SoftwareSerial/SoftwareSerial.h
new file mode 100644
index 0000000..d98fe21
--- /dev/null
+++ b/libraries/SoftwareSerial/SoftwareSerial.h
@@ -0,0 +1,56 @@
+/*

+  SoftwareSerial.h - Software serial library

+  Copyright (c) 2006 David A. Mellis.  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

+*/

+

+#ifndef SoftwareSerial_h

+#define SoftwareSerial_h

+

+#include <inttypes.h>

+

+class SoftwareSerial

+{

+  private:

+    uint8_t _receivePin;

+    uint8_t _transmitPin;

+    long _baudRate;

+    int _bitPeriod;

+    void printNumber(unsigned long, uint8_t);

+  public:

+    SoftwareSerial(uint8_t, uint8_t);

+    void begin(long);

+    int read();

+    void print(char);

+    void print(const char[]);

+    void print(uint8_t);

+    void print(int);

+    void print(unsigned int);

+    void print(long);

+    void print(unsigned long);

+    void print(long, int);

+    void println(void);

+    void println(char);

+    void println(const char[]);

+    void println(uint8_t);

+    void println(int);

+    void println(long);

+    void println(unsigned long);

+    void println(long, int);

+};

+

+#endif

+

diff --git a/libraries/SoftwareSerial/keywords.txt b/libraries/SoftwareSerial/keywords.txt
new file mode 100644
index 0000000..7c674de
--- /dev/null
+++ b/libraries/SoftwareSerial/keywords.txt
@@ -0,0 +1,18 @@
+#######################################

+# Syntax Coloring Map For Ultrasound

+#######################################

+

+#######################################

+# Datatypes (KEYWORD1)

+#######################################

+

+SoftwareSerial	KEYWORD1

+

+#######################################

+# Methods and Functions (KEYWORD2)

+#######################################

+

+#######################################

+# Constants (LITERAL1)

+#######################################

+