aboutsummaryrefslogtreecommitdiff
path: root/libraries/SoftwareSerial
diff options
context:
space:
mode:
Diffstat (limited to 'libraries/SoftwareSerial')
-rw-r--r--libraries/SoftwareSerial/SoftwareSerial.cpp518
-rw-r--r--libraries/SoftwareSerial/SoftwareSerial.h112
-rw-r--r--libraries/SoftwareSerial/examples/SoftwareSerialExample/SoftwareSerialExample.ino55
-rw-r--r--libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino93
-rw-r--r--libraries/SoftwareSerial/keywords.txt27
5 files changed, 805 insertions, 0 deletions
diff --git a/libraries/SoftwareSerial/SoftwareSerial.cpp b/libraries/SoftwareSerial/SoftwareSerial.cpp
new file mode 100644
index 0000000..64496fe
--- /dev/null
+++ b/libraries/SoftwareSerial/SoftwareSerial.cpp
@@ -0,0 +1,518 @@
+/*
+SoftwareSerial.cpp (formerly NewSoftSerial.cpp) -
+Multi-instance software serial library for Arduino/Wiring
+-- Interrupt-driven receive and other improvements by ladyada
+ (http://ladyada.net)
+-- Tuning, circular buffer, derivation from class Print/Stream,
+ multi-instance support, porting to 8MHz processors,
+ various optimizations, PROGMEM delay tables, inverse logic and
+ direct port writing by Mikal Hart (http://www.arduiniana.org)
+-- Pin change interrupt macros by Paul Stoffregen (http://www.pjrc.com)
+-- 20MHz processor support by Garrett Mace (http://www.macetech.com)
+-- ATmega1280/2560 support by Brett Hagman (http://www.roguerobotics.com/)
+
+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
+
+The latest version of this library can always be found at
+http://arduiniana.org.
+*/
+
+// When set, _DEBUG co-opts pins 11 and 13 for debugging with an
+// oscilloscope or logic analyzer. Beware: it also slightly modifies
+// the bit times, so don't rely on it too much at high baud rates
+#define _DEBUG 0
+#define _DEBUG_PIN1 11
+#define _DEBUG_PIN2 13
+//
+// Includes
+//
+#include <avr/interrupt.h>
+#include <avr/pgmspace.h>
+#include <Arduino.h>
+#include <SoftwareSerial.h>
+//
+// Lookup table
+//
+typedef struct _DELAY_TABLE
+{
+ long baud;
+ unsigned short rx_delay_centering;
+ unsigned short rx_delay_intrabit;
+ unsigned short rx_delay_stopbit;
+ unsigned short tx_delay;
+} DELAY_TABLE;
+
+#if F_CPU == 16000000
+
+static const DELAY_TABLE PROGMEM table[] =
+{
+ // baud rxcenter rxintra rxstop tx
+ { 115200, 1, 17, 17, 12, },
+ { 57600, 10, 37, 37, 33, },
+ { 38400, 25, 57, 57, 54, },
+ { 31250, 31, 70, 70, 68, },
+ { 28800, 34, 77, 77, 74, },
+ { 19200, 54, 117, 117, 114, },
+ { 14400, 74, 156, 156, 153, },
+ { 9600, 114, 236, 236, 233, },
+ { 4800, 233, 474, 474, 471, },
+ { 2400, 471, 950, 950, 947, },
+ { 1200, 947, 1902, 1902, 1899, },
+ { 600, 1902, 3804, 3804, 3800, },
+ { 300, 3804, 7617, 7617, 7614, },
+};
+
+const int XMIT_START_ADJUSTMENT = 5;
+
+#elif F_CPU == 8000000
+
+static const DELAY_TABLE table[] PROGMEM =
+{
+ // baud rxcenter rxintra rxstop tx
+ { 115200, 1, 5, 5, 3, },
+ { 57600, 1, 15, 15, 13, },
+ { 38400, 2, 25, 26, 23, },
+ { 31250, 7, 32, 33, 29, },
+ { 28800, 11, 35, 35, 32, },
+ { 19200, 20, 55, 55, 52, },
+ { 14400, 30, 75, 75, 72, },
+ { 9600, 50, 114, 114, 112, },
+ { 4800, 110, 233, 233, 230, },
+ { 2400, 229, 472, 472, 469, },
+ { 1200, 467, 948, 948, 945, },
+ { 600, 948, 1895, 1895, 1890, },
+ { 300, 1895, 3805, 3805, 3802, },
+};
+
+const int XMIT_START_ADJUSTMENT = 4;
+
+#elif F_CPU == 20000000
+
+// 20MHz support courtesy of the good people at macegr.com.
+// Thanks, Garrett!
+
+static const DELAY_TABLE PROGMEM table[] =
+{
+ // baud rxcenter rxintra rxstop tx
+ { 115200, 3, 21, 21, 18, },
+ { 57600, 20, 43, 43, 41, },
+ { 38400, 37, 73, 73, 70, },
+ { 31250, 45, 89, 89, 88, },
+ { 28800, 46, 98, 98, 95, },
+ { 19200, 71, 148, 148, 145, },
+ { 14400, 96, 197, 197, 194, },
+ { 9600, 146, 297, 297, 294, },
+ { 4800, 296, 595, 595, 592, },
+ { 2400, 592, 1189, 1189, 1186, },
+ { 1200, 1187, 2379, 2379, 2376, },
+ { 600, 2379, 4759, 4759, 4755, },
+ { 300, 4759, 9523, 9523, 9520, },
+};
+
+const int XMIT_START_ADJUSTMENT = 6;
+
+#else
+
+#error This version of SoftwareSerial supports only 20, 16 and 8MHz processors
+
+#endif
+
+//
+// Statics
+//
+SoftwareSerial *SoftwareSerial::active_object = 0;
+char SoftwareSerial::_receive_buffer[_SS_MAX_RX_BUFF];
+volatile uint8_t SoftwareSerial::_receive_buffer_tail = 0;
+volatile uint8_t SoftwareSerial::_receive_buffer_head = 0;
+
+//
+// Debugging
+//
+// This function generates a brief pulse
+// for debugging or measuring on an oscilloscope.
+inline void DebugPulse(uint8_t pin, uint8_t count)
+{
+#if _DEBUG
+ volatile uint8_t *pport = portOutputRegister(digitalPinToPort(pin));
+
+ uint8_t val = *pport;
+ while (count--)
+ {
+ *pport = val | digitalPinToBitMask(pin);
+ *pport = val;
+ }
+#endif
+}
+
+//
+// Private methods
+//
+
+/* static */
+inline void SoftwareSerial::tunedDelay(uint16_t delay) {
+ uint8_t tmp=0;
+
+ asm volatile("sbiw %0, 0x01 \n\t"
+ "ldi %1, 0xFF \n\t"
+ "cpi %A0, 0xFF \n\t"
+ "cpc %B0, %1 \n\t"
+ "brne .-10 \n\t"
+ : "+r" (delay), "+a" (tmp)
+ : "0" (delay)
+ );
+}
+
+// This function sets the current object as the "listening"
+// one and returns true if it replaces another
+bool SoftwareSerial::listen()
+{
+ if (active_object != this)
+ {
+ _buffer_overflow = false;
+ uint8_t oldSREG = SREG;
+ cli();
+ _receive_buffer_head = _receive_buffer_tail = 0;
+ active_object = this;
+ SREG = oldSREG;
+ return true;
+ }
+
+ return false;
+}
+
+//
+// The receive routine called by the interrupt handler
+//
+void SoftwareSerial::recv()
+{
+
+#if GCC_VERSION < 40302
+// Work-around for avr-gcc 4.3.0 OSX version bug
+// Preserve the registers that the compiler misses
+// (courtesy of Arduino forum user *etracer*)
+ asm volatile(
+ "push r18 \n\t"
+ "push r19 \n\t"
+ "push r20 \n\t"
+ "push r21 \n\t"
+ "push r22 \n\t"
+ "push r23 \n\t"
+ "push r26 \n\t"
+ "push r27 \n\t"
+ ::);
+#endif
+
+ uint8_t d = 0;
+
+ // If RX line is high, then we don't see any start bit
+ // so interrupt is probably not for us
+ if (_inverse_logic ? rx_pin_read() : !rx_pin_read())
+ {
+ // Wait approximately 1/2 of a bit width to "center" the sample
+ tunedDelay(_rx_delay_centering);
+ DebugPulse(_DEBUG_PIN2, 1);
+
+ // Read each of the 8 bits
+ for (uint8_t i=0x1; i; i <<= 1)
+ {
+ tunedDelay(_rx_delay_intrabit);
+ DebugPulse(_DEBUG_PIN2, 1);
+ uint8_t noti = ~i;
+ if (rx_pin_read())
+ d |= i;
+ else // else clause added to ensure function timing is ~balanced
+ d &= noti;
+ }
+
+ // skip the stop bit
+ tunedDelay(_rx_delay_stopbit);
+ DebugPulse(_DEBUG_PIN2, 1);
+
+ if (_inverse_logic)
+ d = ~d;
+
+ // if buffer full, set the overflow flag and return
+ if ((_receive_buffer_tail + 1) % _SS_MAX_RX_BUFF != _receive_buffer_head)
+ {
+ // save new data in buffer: tail points to where byte goes
+ _receive_buffer[_receive_buffer_tail] = d; // save new byte
+ _receive_buffer_tail = (_receive_buffer_tail + 1) % _SS_MAX_RX_BUFF;
+ }
+ else
+ {
+#if _DEBUG // for scope: pulse pin as overflow indictator
+ DebugPulse(_DEBUG_PIN1, 1);
+#endif
+ _buffer_overflow = true;
+ }
+ }
+
+#if GCC_VERSION < 40302
+// Work-around for avr-gcc 4.3.0 OSX version bug
+// Restore the registers that the compiler misses
+ asm volatile(
+ "pop r27 \n\t"
+ "pop r26 \n\t"
+ "pop r23 \n\t"
+ "pop r22 \n\t"
+ "pop r21 \n\t"
+ "pop r20 \n\t"
+ "pop r19 \n\t"
+ "pop r18 \n\t"
+ ::);
+#endif
+}
+
+void SoftwareSerial::tx_pin_write(uint8_t pin_state)
+{
+ if (pin_state == LOW)
+ *_transmitPortRegister &= ~_transmitBitMask;
+ else
+ *_transmitPortRegister |= _transmitBitMask;
+}
+
+uint8_t SoftwareSerial::rx_pin_read()
+{
+ return *_receivePortRegister & _receiveBitMask;
+}
+
+//
+// Interrupt handling
+//
+
+/* static */
+inline void SoftwareSerial::handle_interrupt()
+{
+ if (active_object)
+ {
+ active_object->recv();
+ }
+}
+
+#if defined(PCINT0_vect)
+ISR(PCINT0_vect)
+{
+ SoftwareSerial::handle_interrupt();
+}
+#endif
+
+#if defined(PCINT1_vect)
+ISR(PCINT1_vect)
+{
+ SoftwareSerial::handle_interrupt();
+}
+#endif
+
+#if defined(PCINT2_vect)
+ISR(PCINT2_vect)
+{
+ SoftwareSerial::handle_interrupt();
+}
+#endif
+
+#if defined(PCINT3_vect)
+ISR(PCINT3_vect)
+{
+ SoftwareSerial::handle_interrupt();
+}
+#endif
+
+//
+// Constructor
+//
+SoftwareSerial::SoftwareSerial(uint8_t receivePin, uint8_t transmitPin, bool inverse_logic /* = false */) :
+ _rx_delay_centering(0),
+ _rx_delay_intrabit(0),
+ _rx_delay_stopbit(0),
+ _tx_delay(0),
+ _buffer_overflow(false),
+ _inverse_logic(inverse_logic)
+{
+ setTX(transmitPin);
+ setRX(receivePin);
+}
+
+//
+// Destructor
+//
+SoftwareSerial::~SoftwareSerial()
+{
+ end();
+}
+
+void SoftwareSerial::setTX(uint8_t tx)
+{
+ pinMode(tx, OUTPUT);
+ digitalWrite(tx, HIGH);
+ _transmitBitMask = digitalPinToBitMask(tx);
+ uint8_t port = digitalPinToPort(tx);
+ _transmitPortRegister = portOutputRegister(port);
+}
+
+void SoftwareSerial::setRX(uint8_t rx)
+{
+ pinMode(rx, INPUT);
+ if (!_inverse_logic)
+ digitalWrite(rx, HIGH); // pullup for normal logic!
+ _receivePin = rx;
+ _receiveBitMask = digitalPinToBitMask(rx);
+ uint8_t port = digitalPinToPort(rx);
+ _receivePortRegister = portInputRegister(port);
+}
+
+//
+// Public methods
+//
+
+void SoftwareSerial::begin(long speed)
+{
+ _rx_delay_centering = _rx_delay_intrabit = _rx_delay_stopbit = _tx_delay = 0;
+
+ for (unsigned i=0; i<sizeof(table)/sizeof(table[0]); ++i)
+ {
+ long baud = pgm_read_dword(&table[i].baud);
+ if (baud == speed)
+ {
+ _rx_delay_centering = pgm_read_word(&table[i].rx_delay_centering);
+ _rx_delay_intrabit = pgm_read_word(&table[i].rx_delay_intrabit);
+ _rx_delay_stopbit = pgm_read_word(&table[i].rx_delay_stopbit);
+ _tx_delay = pgm_read_word(&table[i].tx_delay);
+ break;
+ }
+ }
+
+ // Set up RX interrupts, but only if we have a valid RX baud rate
+ if (_rx_delay_stopbit)
+ {
+ if (digitalPinToPCICR(_receivePin))
+ {
+ *digitalPinToPCICR(_receivePin) |= _BV(digitalPinToPCICRbit(_receivePin));
+ *digitalPinToPCMSK(_receivePin) |= _BV(digitalPinToPCMSKbit(_receivePin));
+ }
+ tunedDelay(_tx_delay); // if we were low this establishes the end
+ }
+
+#if _DEBUG
+ pinMode(_DEBUG_PIN1, OUTPUT);
+ pinMode(_DEBUG_PIN2, OUTPUT);
+#endif
+
+ listen();
+}
+
+void SoftwareSerial::end()
+{
+ if (digitalPinToPCMSK(_receivePin))
+ *digitalPinToPCMSK(_receivePin) &= ~_BV(digitalPinToPCMSKbit(_receivePin));
+}
+
+
+// Read data from buffer
+int SoftwareSerial::read()
+{
+ if (!isListening())
+ return -1;
+
+ // Empty buffer?
+ if (_receive_buffer_head == _receive_buffer_tail)
+ return -1;
+
+ // Read from "head"
+ uint8_t d = _receive_buffer[_receive_buffer_head]; // grab next byte
+ _receive_buffer_head = (_receive_buffer_head + 1) % _SS_MAX_RX_BUFF;
+ return d;
+}
+
+int SoftwareSerial::available()
+{
+ if (!isListening())
+ return 0;
+
+ return (_receive_buffer_tail + _SS_MAX_RX_BUFF - _receive_buffer_head) % _SS_MAX_RX_BUFF;
+}
+
+size_t SoftwareSerial::write(uint8_t b)
+{
+ if (_tx_delay == 0) {
+ setWriteError();
+ return 0;
+ }
+
+ uint8_t oldSREG = SREG;
+ cli(); // turn off interrupts for a clean txmit
+
+ // Write the start bit
+ tx_pin_write(_inverse_logic ? HIGH : LOW);
+ tunedDelay(_tx_delay + XMIT_START_ADJUSTMENT);
+
+ // Write each of the 8 bits
+ if (_inverse_logic)
+ {
+ for (byte mask = 0x01; mask; mask <<= 1)
+ {
+ if (b & mask) // choose bit
+ tx_pin_write(LOW); // send 1
+ else
+ tx_pin_write(HIGH); // send 0
+
+ tunedDelay(_tx_delay);
+ }
+
+ tx_pin_write(LOW); // restore pin to natural state
+ }
+ else
+ {
+ for (byte mask = 0x01; mask; mask <<= 1)
+ {
+ if (b & mask) // choose bit
+ tx_pin_write(HIGH); // send 1
+ else
+ tx_pin_write(LOW); // send 0
+
+ tunedDelay(_tx_delay);
+ }
+
+ tx_pin_write(HIGH); // restore pin to natural state
+ }
+
+ SREG = oldSREG; // turn interrupts back on
+ tunedDelay(_tx_delay);
+
+ return 1;
+}
+
+void SoftwareSerial::flush()
+{
+ if (!isListening())
+ return;
+
+ uint8_t oldSREG = SREG;
+ cli();
+ _receive_buffer_head = _receive_buffer_tail = 0;
+ SREG = oldSREG;
+}
+
+int SoftwareSerial::peek()
+{
+ if (!isListening())
+ return -1;
+
+ // Empty buffer?
+ if (_receive_buffer_head == _receive_buffer_tail)
+ return -1;
+
+ // Read from "head"
+ return _receive_buffer[_receive_buffer_head];
+}
diff --git a/libraries/SoftwareSerial/SoftwareSerial.h b/libraries/SoftwareSerial/SoftwareSerial.h
new file mode 100644
index 0000000..a6a60b5
--- /dev/null
+++ b/libraries/SoftwareSerial/SoftwareSerial.h
@@ -0,0 +1,112 @@
+/*
+SoftwareSerial.h (formerly NewSoftSerial.h) -
+Multi-instance software serial library for Arduino/Wiring
+-- Interrupt-driven receive and other improvements by ladyada
+ (http://ladyada.net)
+-- Tuning, circular buffer, derivation from class Print/Stream,
+ multi-instance support, porting to 8MHz processors,
+ various optimizations, PROGMEM delay tables, inverse logic and
+ direct port writing by Mikal Hart (http://www.arduiniana.org)
+-- Pin change interrupt macros by Paul Stoffregen (http://www.pjrc.com)
+-- 20MHz processor support by Garrett Mace (http://www.macetech.com)
+-- ATmega1280/2560 support by Brett Hagman (http://www.roguerobotics.com/)
+
+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
+
+The latest version of this library can always be found at
+http://arduiniana.org.
+*/
+
+#ifndef SoftwareSerial_h
+#define SoftwareSerial_h
+
+#include <inttypes.h>
+#include <Stream.h>
+
+/******************************************************************************
+* Definitions
+******************************************************************************/
+
+#define _SS_MAX_RX_BUFF 64 // RX buffer size
+#ifndef GCC_VERSION
+#define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
+#endif
+
+class SoftwareSerial : public Stream
+{
+private:
+ // per object data
+ uint8_t _receivePin;
+ uint8_t _receiveBitMask;
+ volatile uint8_t *_receivePortRegister;
+ uint8_t _transmitBitMask;
+ volatile uint8_t *_transmitPortRegister;
+
+ uint16_t _rx_delay_centering;
+ uint16_t _rx_delay_intrabit;
+ uint16_t _rx_delay_stopbit;
+ uint16_t _tx_delay;
+
+ uint16_t _buffer_overflow:1;
+ uint16_t _inverse_logic:1;
+
+ // static data
+ static char _receive_buffer[_SS_MAX_RX_BUFF];
+ static volatile uint8_t _receive_buffer_tail;
+ static volatile uint8_t _receive_buffer_head;
+ static SoftwareSerial *active_object;
+
+ // private methods
+ void recv();
+ uint8_t rx_pin_read();
+ void tx_pin_write(uint8_t pin_state);
+ void setTX(uint8_t transmitPin);
+ void setRX(uint8_t receivePin);
+
+ // private static method for timing
+ static inline void tunedDelay(uint16_t delay);
+
+public:
+ // public methods
+ SoftwareSerial(uint8_t receivePin, uint8_t transmitPin, bool inverse_logic = false);
+ ~SoftwareSerial();
+ void begin(long speed);
+ bool listen();
+ void end();
+ bool isListening() { return this == active_object; }
+ bool overflow() { bool ret = _buffer_overflow; _buffer_overflow = false; return ret; }
+ int peek();
+
+ virtual size_t write(uint8_t byte);
+ virtual int read();
+ virtual int available();
+ virtual void flush();
+
+ using Print::write;
+
+ // public only for easy access by interrupt handlers
+ static inline void handle_interrupt();
+};
+
+// Arduino 0012 workaround
+#undef int
+#undef char
+#undef long
+#undef byte
+#undef float
+#undef abs
+#undef round
+
+#endif
diff --git a/libraries/SoftwareSerial/examples/SoftwareSerialExample/SoftwareSerialExample.ino b/libraries/SoftwareSerial/examples/SoftwareSerialExample/SoftwareSerialExample.ino
new file mode 100644
index 0000000..6101bb1
--- /dev/null
+++ b/libraries/SoftwareSerial/examples/SoftwareSerialExample/SoftwareSerialExample.ino
@@ -0,0 +1,55 @@
+/*
+ Software serial multple serial test
+
+ Receives from the hardware serial, sends to software serial.
+ Receives from software serial, sends to hardware serial.
+
+ The circuit:
+ * RX is digital pin 10 (connect to TX of other device)
+ * TX is digital pin 11 (connect to RX of other device)
+
+ Note:
+ Not all pins on the Mega and Mega 2560 support change interrupts,
+ so only the following can be used for RX:
+ 10, 11, 12, 13, 50, 51, 52, 53, 62, 63, 64, 65, 66, 67, 68, 69
+
+ Not all pins on the Leonardo support change interrupts,
+ so only the following can be used for RX:
+ 8, 9, 10, 11, 14 (MISO), 15 (SCK), 16 (MOSI).
+
+ created back in the mists of time
+ modified 25 May 2012
+ by Tom Igoe
+ based on Mikal Hart's example
+
+ This example code is in the public domain.
+
+ */
+#include <SoftwareSerial.h>
+
+SoftwareSerial mySerial(10, 11); // RX, TX
+
+void setup()
+{
+ // Open serial communications and wait for port to open:
+ Serial.begin(57600);
+ while (!Serial) {
+ ; // wait for serial port to connect. Needed for Leonardo only
+ }
+
+
+ Serial.println("Goodnight moon!");
+
+ // set the data rate for the SoftwareSerial port
+ mySerial.begin(4800);
+ mySerial.println("Hello, world?");
+}
+
+void loop() // run over and over
+{
+ if (mySerial.available())
+ Serial.write(mySerial.read());
+ if (Serial.available())
+ mySerial.write(Serial.read());
+}
+
diff --git a/libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino b/libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino
new file mode 100644
index 0000000..d607ee6
--- /dev/null
+++ b/libraries/SoftwareSerial/examples/TwoPortReceive/TwoPortReceive.ino
@@ -0,0 +1,93 @@
+/*
+ Software serial multple serial test
+
+ Receives from the two software serial ports,
+ sends to the hardware serial port.
+
+ In order to listen on a software port, you call port.listen().
+ When using two software serial ports, you have to switch ports
+ by listen()ing on each one in turn. Pick a logical time to switch
+ ports, like the end of an expected transmission, or when the
+ buffer is empty. This example switches ports when there is nothing
+ more to read from a port
+
+ The circuit:
+ Two devices which communicate serially are needed.
+ * First serial device's TX attached to digital pin 2, RX to pin 3
+ * Second serial device's TX attached to digital pin 4, RX to pin 5
+
+ Note:
+ Not all pins on the Mega and Mega 2560 support change interrupts,
+ so only the following can be used for RX:
+ 10, 11, 12, 13, 50, 51, 52, 53, 62, 63, 64, 65, 66, 67, 68, 69
+
+ Not all pins on the Leonardo support change interrupts,
+ so only the following can be used for RX:
+ 8, 9, 10, 11, 14 (MISO), 15 (SCK), 16 (MOSI).
+
+ created 18 Apr. 2011
+ modified 25 May 2012
+ by Tom Igoe
+ based on Mikal Hart's twoPortRXExample
+
+ This example code is in the public domain.
+
+ */
+
+#include <SoftwareSerial.h>
+// software serial #1: TX = digital pin 10, RX = digital pin 11
+SoftwareSerial portOne(10,11);
+
+// software serial #2: TX = digital pin 8, RX = digital pin 9
+// on the Mega, use other pins instead, since 8 and 9 don't work on the Mega
+SoftwareSerial portTwo(8,9);
+
+void setup()
+{
+ // Open serial communications and wait for port to open:
+ Serial.begin(9600);
+ while (!Serial) {
+ ; // wait for serial port to connect. Needed for Leonardo only
+ }
+
+
+ // Start each software serial port
+ portOne.begin(9600);
+ portTwo.begin(9600);
+}
+
+void loop()
+{
+ // By default, the last intialized port is listening.
+ // when you want to listen on a port, explicitly select it:
+ portOne.listen();
+ Serial.println("Data from port one:");
+ // while there is data coming in, read it
+ // and send to the hardware serial port:
+ while (portOne.available() > 0) {
+ char inByte = portOne.read();
+ Serial.write(inByte);
+ }
+
+ // blank line to separate data from the two ports:
+ Serial.println();
+
+ // Now listen on the second port
+ portTwo.listen();
+ // while there is data coming in, read it
+ // and send to the hardware serial port:
+ Serial.println("Data from port two:");
+ while (portTwo.available() > 0) {
+ char inByte = portTwo.read();
+ Serial.write(inByte);
+ }
+
+ // blank line to separate data from the two ports:
+ Serial.println();
+}
+
+
+
+
+
+
diff --git a/libraries/SoftwareSerial/keywords.txt b/libraries/SoftwareSerial/keywords.txt
new file mode 100644
index 0000000..90d4c15
--- /dev/null
+++ b/libraries/SoftwareSerial/keywords.txt
@@ -0,0 +1,27 @@
+#######################################
+# Syntax Coloring Map for NewSoftSerial
+#######################################
+
+#######################################
+# Datatypes (KEYWORD1)
+#######################################
+
+NewSoftSerial KEYWORD1
+
+#######################################
+# Methods and Functions (KEYWORD2)
+#######################################
+
+begin KEYWORD2
+end KEYWORD2
+read KEYWORD2
+available KEYWORD2
+isListening KEYWORD2
+overflow KEYWORD2
+flush KEYWORD2
+listen KEYWORD2
+
+#######################################
+# Constants (LITERAL1)
+#######################################
+
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-10-31 10:26:44 +0000