Inital commit... halfway through the project

6 files changed, 524 insertions, 0 deletions

diff --git a/libraries/SPI/SPI.cpp b/libraries/SPI/SPI.cpp
new file mode 100644
index 0000000..c592a60
--- /dev/null
+++ b/libraries/SPI/SPI.cpp
@@ -0,0 +1,61 @@
+/*

+ * Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st>

+ * SPI Master library for arduino.

+ *

+ * This file is free software; you can redistribute it and/or modify

+ * it under the terms of either the GNU General Public License version 2

+ * or the GNU Lesser General Public License version 2.1, both as

+ * published by the Free Software Foundation.

+ */

+

+#include "pins_arduino.h"

+#include "SPI.h"

+

+SPIClass SPI;

+

+void SPIClass::begin() {

+  // Set direction register for SCK and MOSI pin.

+  // MISO pin automatically overrides to INPUT.

+  // When the SS pin is set as OUTPUT, it can be used as

+  // a general purpose output port (it doesn't influence

+  // SPI operations).

+

+  pinMode(SCK, OUTPUT);

+  pinMode(MOSI, OUTPUT);

+  pinMode(SS, OUTPUT);

+  

+  digitalWrite(SCK, LOW);

+  digitalWrite(MOSI, LOW);

+  digitalWrite(SS, HIGH);

+

+  // Warning: if the SS pin ever becomes a LOW INPUT then SPI 

+  // automatically switches to Slave, so the data direction of 

+  // the SS pin MUST be kept as OUTPUT.

+  SPCR |= _BV(MSTR);

+  SPCR |= _BV(SPE);

+}

+

+void SPIClass::end() {

+  SPCR &= ~_BV(SPE);

+}

+

+void SPIClass::setBitOrder(uint8_t bitOrder)

+{

+  if(bitOrder == LSBFIRST) {

+    SPCR |= _BV(DORD);

+  } else {

+    SPCR &= ~(_BV(DORD));

+  }

+}

+

+void SPIClass::setDataMode(uint8_t mode)

+{

+  SPCR = (SPCR & ~SPI_MODE_MASK) | mode;

+}

+

+void SPIClass::setClockDivider(uint8_t rate)

+{

+  SPCR = (SPCR & ~SPI_CLOCK_MASK) | (rate & SPI_CLOCK_MASK);

+  SPSR = (SPSR & ~SPI_2XCLOCK_MASK) | ((rate >> 2) & SPI_2XCLOCK_MASK);

+}

+

diff --git a/libraries/SPI/SPI.h b/libraries/SPI/SPI.h
new file mode 100644
index 0000000..a191305
--- /dev/null
+++ b/libraries/SPI/SPI.h
@@ -0,0 +1,70 @@
+/*

+ * Copyright (c) 2010 by Cristian Maglie <c.maglie@bug.st>

+ * SPI Master library for arduino.

+ *

+ * This file is free software; you can redistribute it and/or modify

+ * it under the terms of either the GNU General Public License version 2

+ * or the GNU Lesser General Public License version 2.1, both as

+ * published by the Free Software Foundation.

+ */

+

+#ifndef _SPI_H_INCLUDED

+#define _SPI_H_INCLUDED

+

+#include <stdio.h>

+#include <WProgram.h>

+#include <avr/pgmspace.h>

+

+#define SPI_CLOCK_DIV4 0x00

+#define SPI_CLOCK_DIV16 0x01

+#define SPI_CLOCK_DIV64 0x02

+#define SPI_CLOCK_DIV128 0x03

+#define SPI_CLOCK_DIV2 0x04

+#define SPI_CLOCK_DIV8 0x05

+#define SPI_CLOCK_DIV32 0x06

+#define SPI_CLOCK_DIV64 0x07

+

+#define SPI_MODE0 0x00

+#define SPI_MODE1 0x04

+#define SPI_MODE2 0x08

+#define SPI_MODE3 0x0C

+

+#define SPI_MODE_MASK 0x0C  // CPOL = bit 3, CPHA = bit 2 on SPCR

+#define SPI_CLOCK_MASK 0x03  // SPR1 = bit 1, SPR0 = bit 0 on SPCR

+#define SPI_2XCLOCK_MASK 0x01  // SPI2X = bit 0 on SPSR

+

+class SPIClass {

+public:

+  inline static byte transfer(byte _data);

+

+  // SPI Configuration methods

+

+  inline static void attachInterrupt();

+  inline static void detachInterrupt(); // Default

+

+  static void begin(); // Default

+  static void end();

+

+  static void setBitOrder(uint8_t);

+  static void setDataMode(uint8_t);

+  static void setClockDivider(uint8_t);

+};

+

+extern SPIClass SPI;

+

+byte SPIClass::transfer(byte _data) {

+  SPDR = _data;

+  while (!(SPSR & _BV(SPIF)))

+    ;

+  return SPDR;

+}

+

+void SPIClass::attachInterrupt() {

+  SPCR |= _BV(SPIE);

+}

+

+void SPIClass::detachInterrupt() {

+  SPCR &= ~_BV(SPIE);

+}

+

+#endif

diff --git a/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.pde b/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.pde
new file mode 100644
index 0000000..f136ae6
--- /dev/null
+++ b/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor.pde
@@ -0,0 +1,143 @@
+/*

+ SCP1000 Barometric Pressure Sensor Display

+ 

+ Shows the output of a Barometric Pressure Sensor on a

+ Uses the SPI library. For details on the sensor, see:

+ http://www.sparkfun.com/commerce/product_info.php?products_id=8161

+ http://www.vti.fi/en/support/obsolete_products/pressure_sensors/

+ 

+ This sketch adapted from Nathan Seidle's SCP1000 example for PIC:

+ http://www.sparkfun.com/datasheets/Sensors/SCP1000-Testing.zip

+ 

+ Circuit:

+ SCP1000 sensor attached to pins 6, 7, 10 - 13:

+ DRDY: pin 6

+ CSB: pin 7

+ MOSI: pin 11

+ MISO: pin 12

+ SCK: pin 13

+ 

+ created 31 July 2010

+ modified 14 August 2010

+ by Tom Igoe

+ */

+

+// the sensor communicates using SPI, so include the library:

+#include <SPI.h>

+

+//Sensor's memory register addresses:

+const int PRESSURE = 0x1F;      //3 most significant bits of pressure

+const int PRESSURE_LSB = 0x20;  //16 least significant bits of pressure

+const int TEMPERATURE = 0x21;   //16 bit temperature reading

+const byte READ = 0b11111100;     // SCP1000's read command

+const byte WRITE = 0b00000010;   // SCP1000's write command

+

+// pins used for the connection with the sensor

+// the other you need are controlled by the SPI library):

+const int dataReadyPin = 6;

+const int chipSelectPin = 7;

+

+void setup() {

+  Serial.begin(9600);

+

+  // start the SPI library:

+  SPI.begin();

+

+  // initalize the  data ready and chip select pins:

+  pinMode(dataReadyPin, INPUT);

+  pinMode(chipSelectPin, OUTPUT);

+

+  //Configure SCP1000 for low noise configuration:

+  writeRegister(0x02, 0x2D);

+  writeRegister(0x01, 0x03);

+  writeRegister(0x03, 0x02);

+  // give the sensor time to set up:

+  delay(100);

+}

+

+void loop() {

+  //Select High Resolution Mode

+  writeRegister(0x03, 0x0A);

+

+  // don't do anything until the data ready pin is high:

+  if (digitalRead(dataReadyPin) == HIGH) {

+    //Read the temperature data

+    int tempData = readRegister(0x21, 2);

+

+    // convert the temperature to celsius and display it:

+    float realTemp = (float)tempData / 20.0;

+    Serial.print("Temp[C]=");

+    Serial.print(realTemp);

+

+

+    //Read the pressure data highest 3 bits:

+    byte  pressure_data_high = readRegister(0x1F, 1);

+    pressure_data_high &= 0b00000111; //you only needs bits 2 to 0

+

+    //Read the pressure data lower 16 bits:

+    unsigned int pressure_data_low = readRegister(0x20, 2);

+    //combine the two parts into one 19-bit number:

+    long pressure = ((pressure_data_high << 16) | pressure_data_low)/4;

+

+    // display the temperature:

+    Serial.println("\tPressure [Pa]=" + String(pressure));

+  }

+}

+

+//Read from or write to register from the SCP1000:

+unsigned int readRegister(byte thisRegister, int bytesToRead ) {

+  byte inByte = 0;           // incoming byte from the SPI

+  unsigned int result = 0;   // result to return

+  Serial.print(thisRegister, BIN);

+  Serial.print("\t");

+  // SCP1000 expects the register name in the upper 6 bits

+  // of the byte. So shift the bits left by two bits:

+  thisRegister = thisRegister << 2;

+  // now combine the address and the command into one byte

+  byte dataToSend = thisRegister & READ;

+  Serial.println(thisRegister, BIN);

+  // take the chip select low to select the device:

+  digitalWrite(chipSelectPin, LOW);

+  // send the device the register you want to read:

+  SPI.transfer(dataToSend);

+  // send a value of 0 to read the first byte returned:

+  result = SPI.transfer(0x00);

+  // decrement the number of bytes left to read:

+  bytesToRead--;

+  // if you still have another byte to read:

+  if (bytesToRead > 0) {

+    // shift the first byte left, then get the second byte:

+    result = result << 8;

+    inByte = SPI.transfer(0x00);

+    // combine the byte you just got with the previous one:

+    result = result | inByte;

+    // decrement the number of bytes left to read:

+    bytesToRead--;

+  }

+  // take the chip select high to de-select:

+  digitalWrite(chipSelectPin, HIGH);

+  // return the result:

+  return(result);

+}

+

+

+//Sends a write command to SCP1000

+

+void writeRegister(byte thisRegister, byte thisValue) {

+

+  // SCP1000 expects the register address in the upper 6 bits

+  // of the byte. So shift the bits left by two bits:

+  thisRegister = thisRegister << 2;

+  // now combine the register address and the command into one byte:

+  byte dataToSend = thisRegister | WRITE;

+

+  // take the chip select low to select the device:

+  digitalWrite(chipSelectPin, LOW);

+

+  SPI.transfer(dataToSend); //Send register location

+  SPI.transfer(thisValue);  //Send value to record into register

+

+  // take the chip select high to de-select:

+  digitalWrite(chipSelectPin, HIGH);

+}

+

diff --git a/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor/BarometricPressureSensor.pde b/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor/BarometricPressureSensor.pde
new file mode 100644
index 0000000..bac3996
--- /dev/null
+++ b/libraries/SPI/examples/BarometricPressureSensor/BarometricPressureSensor/BarometricPressureSensor.pde
@@ -0,0 +1,143 @@
+/*

+  SCP1000 Barometric Pressure Sensor Display

+ 

+ Shows the output of a Barometric Pressure Sensor on a

+ Uses the SPI library. For details on the sensor, see:

+ http://www.sparkfun.com/commerce/product_info.php?products_id=8161

+ http://www.vti.fi/en/support/obsolete_products/pressure_sensors/

+ 

+ This sketch adapted from Nathan Seidle's SCP1000 example for PIC:

+ http://www.sparkfun.com/datasheets/Sensors/SCP1000-Testing.zip

+ 

+ Circuit:

+ SCP1000 sensor attached to pins 6, 7, 10 - 13:

+ DRDY: pin 6

+ CSB: pin 7

+ MOSI: pin 11

+ MISO: pin 12

+ SCK: pin 13

+ 

+ created 31 July 2010

+ modified 14 August 2010

+ by Tom Igoe

+ */

+

+// the sensor communicates using SPI, so include the library:

+#include <SPI.h>

+

+//Sensor's memory register addresses:

+const int PRESSURE = 0x1F;      //3 most significant bits of pressure

+const int PRESSURE_LSB = 0x20;  //16 least significant bits of pressure

+const int TEMPERATURE = 0x21;   //16 bit temperature reading

+cont byte READ = 0b00000000;     // SCP1000's read command

+const byte WRITE = 0b00000010;   // SCP1000's write command

+// pins used for the connection with the sensor

+// the other you need are controlled by the SPI library):

+const int dataReadyPin = 6; 

+const int chipSelectPin = 7;

+

+void setup() {

+  Serial.begin(9600);

+

+  // start the SPI library:

+  SPI.begin();

+

+  // initalize the  data ready and chip select pins:

+  pinMode(dataReadyPin, INPUT);

+  pinMode(chipSelectPin, OUTPUT);

+

+  //Configure SCP1000 for low noise configuration:

+  writeRegister(0x02, 0x2D);

+  writeRegister(0x01, 0x03);

+  writeRegister(0x03, 0x02);

+  // give the sensor time to set up:

+  delay(100);

+}

+

+void loop() {

+  //Select High Resolution Mode

+  writeRegister(0x03, 0x0A);

+

+  // don't do anything until the data ready pin is high:

+  if (digitalRead(dataReadyPin) == HIGH) {

+    //Read the temperature data

+    int tempData = readRegister(0x21, 2);

+

+    // convert the temperature to celsius and display it:

+    float realTemp = (float)tempData / 20.0;

+    Serial.print("Temp[C]=");

+    Serial.print(realTemp);

+

+

+    //Read the pressure data highest 3 bits:

+    byte  pressure_data_high = readRegister(0x1F, 1);   

+    pressure_data_high &= 0b00000111; //you only needs bits 2 to 0

+

+    //Read the pressure data lower 16 bits:

+    unsigned int pressure_data_low = readRegister(0x20, 2);    

+    //combine the two parts into one 19-bit number:

+    long pressure = ((pressure_data_high << 16) | pressure_data_low)/4;

+

+    // display the temperature:

+    Serial.println("\tPressure [Pa]=" + String(pressure));

+  }

+}

+

+//Read from or write to register from the SCP1000:

+unsigned int readRegister(byte thisRegister, int bytesToRead ) {

+  byte inByte = 0;           // incoming byte from the SPI

+  unsigned int result = 0;   // result to return 

+

+  // SCP1000 expects the register name in the upper 6 bits

+  // of the byte. So shift the bits left by two bits:

+  thisRegister = thisRegister << 2;

+  // now combine the address and the command into one byte

+  dataToSend = thisRegister & READ;

+

+  // take the chip select low to select the device:

+  digitalWrite(chipSelectPin, LOW); 

+  // send the device the register you want to read:

+  SPI.transfer(dataToSend); 

+  // send a value of 0 to read the first byte returned:

+  result = SPI.transfer(0x00); 

+  // decrement the number of bytes left to read:

+  bytesToRead--;

+  // if you still have another byte to read:

+  if (bytesToRead > 0) {

+    // shift the first byte left, then get the second byte: 

+    result = result << 8;

+    inByte = SPI.transfer(0x00); 

+    // combine the byte you just got with the previous one:

+    result = result | inByte;

+    // decrement the number of bytes left to read:

+    bytesToRead--;

+  }

+  // take the chip select high to de-select:

+  digitalWrite(chipSelectPin, HIGH); 

+  // return the result:

+  return(result);

+}

+

+

+//Sends a write command to SCP1000

+

+void writeRegister(byte thisRegister, byte thisValue) {

+

+  // SCP1000 expects the register address in the upper 6 bits

+  // of the byte. So shift the bits left by two bits:

+  thisRegister = thisRegister << 2;

+  // now combine the register address and the command into one byte:

+  dataToSend = thisRegister | WRITE;

+

+  // take the chip select low to select the device:

+  digitalWrite(chipSelectPin, LOW); 

+

+  SPI.transfer(dataToSend); //Send register location

+  SPI.transfer(thisValue);  //Send value to record into register

+

+  // take the chip select high to de-select:

+  digitalWrite(chipSelectPin, HIGH); 

+}

+

+

+

diff --git a/libraries/SPI/examples/DigitalPotControl/DigitalPotControl.pde b/libraries/SPI/examples/DigitalPotControl/DigitalPotControl.pde
new file mode 100644
index 0000000..c862193
--- /dev/null
+++ b/libraries/SPI/examples/DigitalPotControl/DigitalPotControl.pde
@@ -0,0 +1,71 @@
+/*

+  Digital Pot Control

+  

+  This example controls an Analog Devices AD5206 digital potentiometer.

+  The AD5206 has 6 potentiometer channels. Each channel's pins are labeled

+  A - connect this to voltage

+  W - this is the pot's wiper, which changes when you set it

+  B - connect this to ground.

+ 

+ The AD5206 is SPI-compatible,and to command it, you send two bytes, 

+ one with the channel number (0 - 5) and one with the resistance value for the

+ channel (0 - 255).  

+ 

+ The circuit:

+  * All A pins  of AD5206 connected to +5V

+  * All B pins of AD5206 connected to ground

+  * An LED and a 220-ohm resisor in series connected from each W pin to ground

+  * CS - to digital pin 10  (SS pin)

+  * SDI - to digital pin 11 (MOSI pin)

+  * CLK - to digital pin 13 (SCK pin)

+ 

+ created 10 Aug 2010 

+ by Tom Igoe

+ 

+ Thanks to Heather Dewey-Hagborg for the original tutorial, 2005

+ 

+*/

+

+

+// inslude the SPI library:

+#include <SPI.h>

+

+

+// set pin 10 as the slave select for the digital pot:

+const int slaveSelectPin = 10;

+

+void setup() {

+  // set the slaveSelectPin as an output:

+  pinMode (slaveSelectPin, OUTPUT);

+  // initialize SPI:

+  SPI.begin(); 

+}

+

+void loop() {

+  // go through the six channels of the digital pot:

+  for (int channel = 0; channel < 6; channel++) { 

+    // change the resistance on this channel from min to max:

+    for (int level = 0; level < 255; level++) {

+      digitalPotWrite(channel, level);

+      delay(10);

+    }

+    // wait a second at the top:

+    delay(100);

+    // change the resistance on this channel from max to min:

+    for (int level = 0; level < 255; level++) {

+      digitalPotWrite(channel, 255 - level);

+      delay(10);

+    }

+  }

+

+}

+

+int digitalPotWrite(int address, int value) {

+  // take the SS pin low to select the chip:

+  digitalWrite(slaveSelectPin,LOW);

+  //  send in the address and value via SPI:

+  SPI.transfer(address);

+  SPI.transfer(value);

+  // take the SS pin high to de-select the chip:

+  digitalWrite(slaveSelectPin,HIGH); 

+}
\ No newline at end of file
diff --git a/libraries/SPI/keywords.txt b/libraries/SPI/keywords.txt
new file mode 100644
index 0000000..a7c61a3
--- /dev/null
+++ b/libraries/SPI/keywords.txt
@@ -0,0 +1,36 @@
+#######################################

+# Syntax Coloring Map SPI

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

+

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

+# Datatypes (KEYWORD1)

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

+

+SPI	KEYWORD1

+

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

+# Methods and Functions (KEYWORD2)

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

+begin	KEYWORD2

+end	KEYWORD2

+transfer	KEYWORD2

+setBitOrder	KEYWORD2

+setDataMode	KEYWORD2

+setClockDivider	KEYWORD2

+

+

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

+# Constants (LITERAL1)

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

+SPI_CLOCK_DIV4	LITERAL1

+SPI_CLOCK_DIV16	LITERAL1

+SPI_CLOCK_DIV64	LITERAL1

+SPI_CLOCK_DIV128	LITERAL1

+SPI_CLOCK_DIV2	LITERAL1

+SPI_CLOCK_DIV8	LITERAL1

+SPI_CLOCK_DIV32	LITERAL1

+SPI_CLOCK_DIV64	LITERAL1

+SPI_MODE0	LITERAL1

+SPI_MODE1	LITERAL1

+SPI_MODE2	LITERAL1

+SPI_MODE3	LITERAL1
\ No newline at end of file