Revision 0:f10415100c39, committed 2019-02-11

Comitter:

jmcmath

Date:

Mon Feb 11 04:31:13 2019 +0000

Commit message:

work in progress

Changed in this revision

diff -r 000000000000 -r f10415100c39 4DGL-uLCD-SE.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/4DGL-uLCD-SE.lib	Mon Feb 11 04:31:13 2019 +0000
@@ -0,0 +1,1 @@
+https://mbed.org/users/4180_1/code/4DGL-uLCD-SE/#e39a44de229a

diff -r 000000000000 -r f10415100c39 MMA8452.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MMA8452.h	Mon Feb 11 04:31:13 2019 +0000
@@ -0,0 +1,344 @@
+#pragma once
+ 
+// Authors: Ashley Mills, Nicholas Herriot
+/* Copyright (c) 2013 Vodafone, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+ 
+// the SparkFun breakout board defaults to 1, set to 0 if SA0 jumper on the bottom of the board is set
+// see the Table 10. I2C Device Address Sequence in Freescale MMA8452Q pdf
+ 
+#include "mbed.h" 
+ 
+#define MMA8452_DEBUG 1
+ 
+// More info on MCU Master address can be found on section 5.10.1 of http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MMA8452Q
+#define SA0 1
+#if SA0
+  #define MMA8452_ADDRESS 0x3A // 0x1D<<1  // SA0 is high, 0x1C if low - 
+#else
+  #define MMA8452_ADDRESS 0x38 // 0x1C<<1
+#endif
+ 
+// Register descriptions found in section 6 of pdf
+#define MMA8452_STATUS 0x00        // Type 'read' : Status of the data registers
+#define MMA8452_OUT_X_MSB 0x01     // Type 'read' : x axis - MSB of 2 byte sample
+#define MMA8452_OUT_X_LSB 0x02     // Type 'read' : x axis - LSB of 2 byte sample
+#define MMA8452_OUT_Y_MSB 0x03     // Type 'read' : y axis - MSB of 2 byte sample
+#define MMA8452_OUT_Y_LSB 0x04     // Type 'read' : y axis - LSB of 2 byte sample
+#define MMA8452_OUT_Z_MSB 0x05     // Type 'read' : z axis - MSB of 2 byte sample
+#define MMA8452_OUT_Z_LSB 0x06     // Type 'read' : z axis - LSB of 2 byte sample
+ 
+// register definitions
+#define MMA8452_XYZ_DATA_CFG 0x0E
+ 
+#define MMA8452_SYSMOD 0x0B        // Type 'read' : This tells you if device is active, sleep or standy 0x00=STANDBY 0x01=WAKE 0x02=SLEEP
+#define MMA8452_WHO_AM_I 0x0D      // Type 'read' : This should return the device id of 0x2A
+ 
+#define MMA8452_PL_STATUS 0x10     // Type 'read' : This shows portrait landscape mode orientation
+#define MMA8452_PL_CFG 0x11        // Type 'read/write' : This allows portrait landscape configuration
+#define MMA8452_PL_COUNT 0x12      // Type 'read' : This is the portraint landscape debounce counter
+#define MMA8452_PL_BF_ZCOMP 0x13   // Type 'read' :
+#define MMA8452_PL_THS_REG 0x14    // Type 'read' :
+ 
+#define MMA8452_FF_MT_CFG 0X15     // Type 'read/write' : Freefaul motion functional block configuration
+#define MMA8452_FF_MT_SRC 0X16     // Type 'read' : Freefaul motion event source register
+#define MMA8452_FF_MT_THS 0X17     // Type 'read' : Freefaul motion threshold register
+#define MMA8452_FF_COUNT 0X18      // Type 'read' : Freefaul motion debouce counter
+ 
+#define MMA8452_ASLP_COUNT 0x29    // Type 'read/write' : Counter settings for auto sleep
+#define MMA8452_CTRL_REG_1 0x2A    // Type 'read/write' :
+#define MMA8452_CTRL_REG_2 0x2B    // Type 'read/write' :
+#define MMA8452_CTRL_REG_3 0x2C    // Type 'read/write' :
+#define MMA8452_CTRL_REG_4 0x2D    // Type 'read/write' :
+#define MMA8452_CTRL_REG_5 0x2E    // Type 'read/write' :
+ 
+// Defined in table 13 of the Freescale PDF
+/// xxx these all need to have better names
+#define STANDBY 0x00                        // State value returned after a SYSMOD request, it can be in state STANDBY, WAKE or SLEEP
+#define WAKE 0x01                           // State value returned after a SYSMOD request, it can be in state STANDBY, WAKE or SLEEP
+#define SLEEP 0x02                          // State value returned after a SYSMOD request, it can be in state STANDBY, WAKE or SLEEP
+#define ACTIVE 0x01                         // Stage value returned and set in Control Register 1, it can be STANDBY=00, or ACTIVE=01
+ 
+#define TILT_STATUS 0x03        // Tilt Status (Read only)
+#define SRST_STATUS 0x04        // Sample Rate Status Register (Read only)
+#define SPCNT_STATUS 0x05       // Sleep Count Register (Read/Write)
+#define INTSU_STATUS 0x06       // Interrupt Setup Register
+#define MODE_STATUS 0x07        // Mode Register (Read/Write)
+#define SR_STATUS 0x08          // Auto-Wake and Active Mode Portrait/Landscape Samples per Seconds Register (Read/Write)
+#define PDET_STATUS 0x09        // Tap/Pulse Detection Register (Read/Write)
+#define PD_STATUS 0xA           // Tap/Pulse Debounce Count Register (Read/Write)
+ 
+// masks for enabling/disabling standby
+#define MMA8452_ACTIVE_MASK 0x01
+#define MMA8452_STANDBY_MASK 0xFE
+ 
+// mask for dynamic range reading and writing
+#define MMA8452_DYNAMIC_RANGE_MASK 0xFC
+ 
+// mask and shift for data rate reading and writing
+#define MMA8452_DATA_RATE_MASK 0xC7
+#define MMA8452_DATA_RATE_MASK_SHIFT 0x03
+ 
+// mask and shift for general reading and writing
+#define MMA8452_WRITE_MASK 0xFE
+#define MMA8452_READ_MASK 0x01
+ 
+// mask and shift for bit depth reading and writing
+#define MMA8452_BIT_DEPTH_MASK 0xFD
+#define MMA8452_BIT_DEPTH_MASK_SHIFT 0x01
+ 
+// status masks and shifts
+#define MMA8452_STATUS_ZYXDR_MASK 0x08
+#define MMA8452_STATUS_ZDR_MASK 0x04
+#define MMA8452_STATUS_YDR_MASK 0x02
+#define MMA8452_STATUS_XDR_MASK 0x01
+ 
+/**
+ * Wrapper for the MMA8452 I2C driven accelerometer.
+ */
+class MMA8452 {
+            
+    public:
+    
+       enum DynamicRange {
+           DYNAMIC_RANGE_2G=0x00,
+           DYNAMIC_RANGE_4G,
+           DYNAMIC_RANGE_8G,
+           DYNAMIC_RANGE_UNKNOWN
+       };
+        
+       enum BitDepth {
+           BIT_DEPTH_12=0x00,
+           BIT_DEPTH_8, // 1 sets fast read mode, hence the inversion
+           BIT_DEPTH_UNKNOWN
+       };
+       
+       enum DataRateHz {
+          RATE_800=0x00,
+          RATE_400,
+          RATE_200,
+          RATE_100,
+          RATE_50,
+          RATE_12_5,
+          RATE_6_25,
+          RATE_1_563,
+          RATE_UNKNOWN
+       };
+         
+       /**
+        * Create an accelerometer object connected to the specified I2C pins.
+        *
+        * @param sda I2C data port
+        * @param scl I2C clock port
+        * @param frequency 
+        * 
+        */ 
+      MMA8452(PinName sda, PinName scl, int frequency);
+       
+      /// Destructor
+      ~MMA8452();
+      
+      /**
+       * Puts the MMA8452 in active mode.
+       * @return 0 on success, 1 on failure.
+       */
+      int activate();
+ 
+      /**
+       * Puts the MMA8452 in standby.
+       * @return 0 on success, 1 on failure.
+       */
+      int standby();      
+    
+       /**
+        * Read the device ID from the accelerometer (should be 0x2a)
+        *
+        * @param dst pointer to store the ID
+        * @return 0 on success, 1 on failure.
+        */        
+      int getDeviceID(char* dst);  
+      
+      /**
+       * Read the MMA8452 status register.
+       *
+       * @param dst pointer to store the register value.
+       * @ return 0 on success, 1 on failure.
+       */
+      int getStatus(char* dst);  
+      
+      /** 
+       * Read the raw x, y, an z registers of the MMA8452 in one operation.
+       * All three registers are read sequentially and stored in the provided buffer.
+       * The stored values are signed 2's complement left-aligned 12 or 8 bit integers.
+       *
+       * @param dst The destination buffer. Note that this needs to be 3 bytes for
+       * BIT_DEPTH_8 and 6 bytes for BIT_DEPTH_12. It is upto the caller to ensure this.
+       * @return 0 for success, and 1 for failure
+       * @sa setBitDepth
+       */ 
+      int readXYZRaw(char *dst);
+      
+      /// Read the raw x register into the provided buffer. @sa readXYZRaw
+      int readXRaw(char *dst);
+      /// Read the raw y register into the provided buffer. @sa readXYZRaw
+      int readYRaw(char *dst);
+      /// Read the raw z register into the provided buffer. @sa readXYZRaw
+      int readZRaw(char *dst);
+      
+      /**
+       * Read the x, y, and z signed counts of the MMA8452 axes.
+       * 
+       * Count resolution is either 8 bits or 12 bits, and the range is either +-2G, +-4G, or +-8G
+       * depending on settings. The number of counts per G are 1024, 512, 256 for 2,4, and 8 G
+       * respectively at 12 bit resolution and 64, 32, 16 for 2, 4, and 8 G respectively at
+       * 8 bit resolution.
+       * 
+       * This function queries the MMA8452 and returns the signed counts for each axes.
+       *
+       * @param x Pointer to integer to store x count
+       * @param y Pointer to integer to store y count
+       * @param z Pointer to integer to store z count
+       * @return 0 on success, 1 on failure.
+       */
+      int readXYZCounts(int *x, int *y, int *z);
+      
+      /// Read the x axes signed count. @sa readXYZCounts
+      int readXCount(int *x);
+      /// Read the y axes signed count. @sa readXYZCounts
+      int readYCount(int *y);
+      /// Read the z axes signed count. @sa readXYZCounts
+      int readZCount(int *z);
+      
+      /**
+       * Read the x, y, and z accelerations measured in G.
+       *
+       * The measurement resolution is controlled via setBitDepth which can
+       * be 8 or 12, and by setDynamicRange, which can be +-2G, +-4G, or +-8G.
+       *
+       * @param x A pointer to the double to store the x acceleration in.
+       * @param y A pointer to the double to store the y acceleration in.
+       * @param z A pointer to the double to store the z acceleration in.
+       *
+       * @return 0 on success, 1 on failure.
+       */
+      int readXYZGravity(double *x, double *y, double *z);
+      
+      /// Read the x gravity in G into the provided double pointer. @sa readXYZGravity
+      int readXGravity(double *x);
+      /// Read the y gravity in G into the provided double pointer. @sa readXYZGravity
+      int readYGravity(double *y);
+      /// Read the z gravity in G into the provided double pointer. @sa readXYZGravity
+      int readZGravity(double *z);
+      
+      /// Returns 1 if data has been internally sampled (is available) for all axes since last read, 0 otherwise.
+      int isXYZReady();
+      /// Returns 1 if data has been internally sampled (is available) for the x-axis since last read, 0 otherwise.
+      int isXReady();
+      /// Returns 1 if data has been internally sampled (is available) for the y-axis since last read, 0 otherwise.
+      int isYReady();
+      /// Returns 1 if data has been internally sampled (is available) for the z-axis since last read, 0 otherwise.
+      int isZReady();
+            
+      /** 
+       * Reads a single byte from the specified MMA8452 register.
+       *
+       * @param addr The internal register address.
+       * @param dst The destination buffer address.
+       * @return 1 on success, 0 on failure.
+       */
+      int readRegister(char addr, char *dst);
+      
+      /** 
+       * Reads n bytes from the specified MMA8452 register.
+       *
+       * @param addr The internal register address.
+       * @param dst The destination buffer address.
+       * @param nbytes The number of bytes to read.
+       * @return 1 on success, 0 on failure.
+       */
+      int readRegister(char addr, char *dst, int nbytes);
+        
+       /** 
+        * Write to the specified MMA8452 register.
+        *
+        * @param addr The internal register address
+        * @param data Data byte to write
+        */    
+      int writeRegister(char addr, char data);
+      
+       /** 
+        * Write a data buffer to the specified MMA8452 register.
+        *
+        * @param addr The internal register address
+        * @param data Pointer to data buffer to write
+        * @param nbytes The length of the data buffer to write
+        */    
+      int writeRegister(char addr, char *data, int nbytes);
+      
+      int setDynamicRange(DynamicRange range, int toggleActivation=1);
+      int setBitDepth(BitDepth depth, int toggleActivation=1);
+      int setDataRate(DataRateHz dataRate, int toggleActivation=1);
+      
+      DynamicRange getDynamicRange();
+      DataRateHz getDataRate();
+      BitDepth getBitDepth();
+      
+      #ifdef MMA8452_DEBUG
+      void debugRegister(char reg);
+      #endif
+   
+    private:
+      /**
+       * Reads the specified register, applies the mask with logical AND, logical ORs the value
+       * and writes back the result to the register. If toggleActivation is set to true then the
+       * device is put in standby before the operation, and activated at the end.
+       * Setting it to false is useful for setting options on a device that you want to keep in
+       * standby.
+       */
+      int maskAndApplyRegister(char reg, char mask, char value, int toggleActivation);
+      
+      /// Reads the specified register, applies the mask with logical AND, and writes the result back.
+      int logicalANDRegister(char addr, char mask);
+      /// Reads the specified register, applies the mask with logical OR, and writes the result back.
+      int logicalORRegister(char addr, char mask);
+      /// Reads the specified register, applies the mask with logical XOR, and writes the result back.
+      int logicalXORRegister(char addr, char mask);
+      
+      /// Converts the 12-bit two's complement number in buf to a signed integer. Returns the integer.
+      int twelveBitToSigned(char *buf);
+      /// Converts the 8-bit two's complement number in buf to a signed integer. Returns the integer.
+      int eightBitToSigned(char *buf);
+      
+      /// Converts a count to a gravity using the supplied countsPerG. Returns the gravity.
+      double convertCountToGravity(int count, int countsPerG);
+      
+      /// Reads the register at addr, applies the mask with logical AND, and returns the result.
+      char getMaskedRegister(int addr, char mask);
+      
+      /// Get the counts per G for the current settings of bit depth and dynamic range.
+      int getCountsPerG();
+    
+      I2C _i2c;
+      int _frequency;
+      int _readAddress;
+      int _writeAddress;
+      
+      BitDepth _bitDepth;
+      DynamicRange _dynamicRange;       
+};
+            
\ No newline at end of file

diff -r 000000000000 -r f10415100c39 PinDetect.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PinDetect.lib	Mon Feb 11 04:31:13 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/AjK/code/PinDetect/#cb3afc45028b

diff -r 000000000000 -r f10415100c39 SDFileSystem.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SDFileSystem.lib	Mon Feb 11 04:31:13 2019 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/SDFileSystem/#c8f66dc765d4

diff -r 000000000000 -r f10415100c39 Speaker.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Speaker.h	Mon Feb 11 04:31:13 2019 +0000
@@ -0,0 +1,19 @@
+#include "mbed.h"
+// new class to play a note on Speaker based on PwmOut class
+class Speaker
+{
+public:
+    Speaker(PinName pin) : _pin(pin) {
+// _pin(pin) means pass pin to the Speaker Constructor
+    }
+// class method to play a note based on PwmOut class
+    void PlayNote(float frequency, float duration, float volume) {
+        _pin.period(1.0/frequency);
+        _pin = volume/2.0;
+        wait(duration);
+        _pin = 0.0;
+    }
+
+private:
+    PwmOut _pin;
+};
\ No newline at end of file

diff -r 000000000000 -r f10415100c39 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Feb 11 04:31:13 2019 +0000
@@ -0,0 +1,337 @@
+#include "mbed.h"
+#include "uLCD_4DGL.h"
+#include "AnalogIn.h"
+
+#include "Speaker.h"
+#include "PinDetect.h"
+
+#include "SDFileSystem.h"
+#include <string>
+
+#include "MMA8452.h"
+
+uLCD_4DGL uLCD(p9, p10, p11);          // used in all parts
+
+Speaker mySpeaker(p21);                // used in parts 4 and 6
+
+SDFileSystem sd(p5, p6, p7, p8, "sd"); // used in part 5
+
+Serial pc(USBTX,USBRX);                // used in part 6
+
+DigitalOut myled1(LED1);
+DigitalOut myled2(LED2);
+DigitalOut myled3(LED3);
+DigitalOut myled4(LED4);
+
+PinDetect pb1(p16);
+PinDetect pb2(p17);
+PinDetect pb3(p18);
+PinDetect selector(p14);
+
+int currentPart = 1; // global placeholder
+
+void part1() // What's up mbed!
+{
+    // begin transition code
+    uLCD.cls();
+    uLCD.printf("\nLab 2 - part 1:\n  What's up mbed!\n");
+    wait(2);
+    uLCD.cls();
+    // end transition code
+    
+    uLCD.printf("\nWhat's up mbed!\n");
+}
+
+void part2() // Bouncing Ball
+{
+    // begin transition code
+    uLCD.cls();
+    uLCD.printf("\nLab 2 - part 2:\n  Bouncing Balls\n");
+    wait(2);
+    uLCD.cls();
+    // end transition code
+    
+    
+    uLCD.display_control(PORTRAIT);
+    uLCD.cls();
+    uLCD.printf("Bouncing Ball");
+    uLCD.baudrate(BAUD_3000000); //jack up baud rate to max for fast display
+    wait(1.0);
+    
+    //Set up initial conditions
+    float fx=50.0,fy=21.0,vx=0.4,vy=0.3;
+    int x=50,y=21,radius=4;
+    uLCD.background_color(BLACK);
+    uLCD.cls();
+    
+    //draw borders
+    uLCD.line(0, 0, 127, 0, WHITE);
+    uLCD.line(127, 0, 127, 127, WHITE);
+    uLCD.line(127, 127, 0, 127, WHITE);
+    uLCD.line(0, 127, 0, 0, WHITE);
+    
+    for (int i=0; i<1500; i++)
+    {
+        //draw ball
+        uLCD.circle(x, y, radius, RED);
+        //bounce off edge walls and slow down a bit
+        if ((x<=radius+1) || (x>=126-radius)) vx = -.95*vx;
+        if ((y<=radius+1) || (y>=126-radius)) vy = -.95*vy;
+        //erase old ball location
+        uLCD.filled_circle(x, y, radius, BLACK);
+        //calculate new ball position
+        fx=fx+vx;
+        fy=fy+vy;
+        x=(int)fx;
+        y=(int)fy;
+    } //end for loop
+}
+
+void part3() // Digital Thermometer
+{
+    // begin transition code
+    uLCD.cls();
+    uLCD.printf("\nLab 2 - part 3:\n  Digital\n  Thermometer\n");
+    wait(2);
+    uLCD.cls();
+    // end transition code
+    
+    
+    class TMP36
+    {
+        public:
+            TMP36(PinName pin);
+            TMP36();
+            float read();
+        private:
+            AnalogIn _pin;
+    };
+
+    TMP36::TMP36(PinName pin) : _pin(pin) {} //This is an initializer list … pass pin to AnalogIn constructor
+    float TMP36::read()
+    {
+        //convert sensor reading to C
+        return ((_pin.read() * 3.3) - 0.500) * 100.0;
+        // _pin.read() returns normalized voltage value as float
+    }
+
+    //instantiate new class to set p15 to analog input
+    //to read and convert TMP36 sensor's voltage output
+    TMP36 myTMP36(p15);
+
+    float tempC, tempF;
+    while(1)
+    {
+        tempC = myTMP36.read();
+        // convert to F
+        tempF = (9.0 * tempC) / 5.0 + 32.0;
+        // print current temp
+        uLCD.cls();
+        uLCD.printf("\n%5.2f C\n%5.2f F\n\n", tempC, tempF);
+        wait(0.5);
+    }
+}
+
+void part4() // Jazzy Tunes
+{
+    // begin transition code
+    uLCD.cls();
+    uLCD.printf("\nLab 2 - part 4:\n  Jazzy Tunes\n");
+    wait(2);
+    uLCD.cls();
+    // end transition code
+    
+    
+    void pb1_hit_callback (void)
+    {
+        myled1 = !myled1;
+        mySpeaker.PlayNote(200.0,0.25,0.1);
+    }
+    //------------------------------------------------------------------------------
+    // Callback routine is interrupt activated by a debounced pb2 hit
+    // That is … this code runs with interrupt is generated by second button press
+    void pb2_hit_callback (void)
+    {
+        myled2 = !myled2;
+        mySpeaker.PlayNote(400.0,0.25,0.1);
+    }
+    //------------------------------------------------------------------------------
+    // Callback routine is interrupt activated by a debounced pb3 hit
+    // That is … this code runs with interrupt is generated by third button press
+    void pb3_hit_callback (void)
+    {
+        myled3 = !myled3;
+        mySpeaker.PlayNote(800.0,0.25,0.1);
+    }
+    //------------------------------------------------------------------------------
+
+    //setup push buttons
+    pb1.mode(PullUp);
+    pb2.mode(PullUp);
+    pb3.mode(PullUp);
+    // Delay for initial pullup to take effect
+    wait(.01);
+    // Setup Interrupt callback functions for a pb hit
+    pb1.attach_deasserted(&pb1_hit_callback);
+    pb2.attach_deasserted(&pb2_hit_callback);
+    pb3.attach_deasserted(&pb3_hit_callback);
+    // Start sampling pb inputs using interrupts
+    pb1.setSampleFrequency();
+    pb2.setSampleFrequency();
+    pb3.setSampleFrequency();
+    // pushbuttons now setup and running
+    while(1)
+    {
+        myled4 = !myled4;
+        wait(0.5);
+    }
+}
+
+void part5_1() // Hello Micro SD Card - Writing
+{
+    // begin transition code
+    uLCD.cls();
+    uLCD.printf("\nLab 2 - part 5.1:\n  Hello Micro SD\n  Card - Writing\n");
+    wait(2);
+    uLCD.cls();
+    // end transition code
+    
+    
+    uLCD.printf("Hello Micro SD\nCard!\n");
+    mkdir("/sd/mydir", 0777);
+    FILE *fp = fopen("/sd/mydir/sdtest.txt", "w");
+    if(fp == NULL) 
+    {
+        uLCD.printf("Error on open \n");
+    }
+    fprintf(fp, "I love ECE2036");
+    fclose(fp);
+}
+
+void part5_2() // Hello Micro SD Card - Reading
+{
+    // begin transition code
+    uLCD.cls();
+    uLCD.printf("\nLab 2 - part 5.2:\n  Hello Micro SD\n  Card - Reading\n");
+    wait(2);
+    uLCD.cls();
+    // end transition code
+    
+    
+    string inputString;
+    uLCD.printf("Content of sdtest.txt is: \n");
+    FILE *fp = fopen("/sd/mydir/sdtest.txt", "r");
+    if(fp == NULL) 
+    {
+        uLCD.printf("Error on open \n");
+    }
+    else
+    {
+        while (fscanf(fp,"%s", inputString)!= EOF) //reads in a string delineated by white space
+        {
+            uLCD.printf("%s ", inputString.c_str());
+        }
+    }
+    fclose(fp);
+}
+
+void part6() // Triple Axis Accelerometer
+{
+    // begin transition code
+    uLCD.cls();
+    uLCD.printf("\nLab 2 - part 6:\n  Triple Axis\n  Accelerometer\n");
+    wait(2);
+    uLCD.cls();
+    // end transition code
+    
+    
+    // you can play around with the parameters to see the response
+    int radius = 10;
+    int offsetx = 63;
+    int offsety = 63;
+    double factor = 50;
+    double music_factor = 200;
+    bool MusicOn = false;
+   
+    //set the push buttons that control sounds
+    pb1.mode(PullUp);
+    pb2.mode(PullUp);
+    //I will not use interupts like in jazzy tunes
+ 
+   
+    double x = 0, y = 0, z = 0;
+ 
+    MMA8452 acc(p28, p27, 40000);  //instantiate an acc object! 
+   
+    //set parameters -- use these and don't change
+    acc.setBitDepth(MMA8452::BIT_DEPTH_12);
+    acc.setDynamicRange(MMA8452::DYNAMIC_RANGE_4G);
+    acc.setDataRate(MMA8452::RATE_100);
+   
+   
+    while(1) 
+    {
+        uLCD.circle(-1*y*factor+offsety, -1*x*factor+offsetx, radius, BLACK);
+       
+        if(!acc.isXYZReady()) 
+        {
+            wait(0.01);
+        }
+        else
+        { 
+            acc.readXYZGravity(&x,&y,&z); //notice this is passed by reference use pointers
+      
+            uLCD.circle(-1*y*factor+offsety, -1*x*factor+offsetx, radius, WHITE);
+      
+            if (MusicOn) mySpeaker.PlayNote(440.0+x*music_factor,0.25+0.2*y,0.05);
+      
+            if (pb1 == true) MusicOn = true;
+           
+            if (pb2 == false) MusicOn = false;
+                 
+            // You can uncomment this line to see the values coming off the MMA8452           
+            uLCD.cls();
+            uLCD.printf("\n(%.2f,%.2f,%.2f)  \n", x,y,z);
+      
+        } //end else
+      
+    } //end infinite while loop
+}
+
+void main_callback()
+{
+    switch (currentPart)
+    {
+        case 1: part1();
+                currentPart++;
+                break;
+        case 2: part2();
+                currentPart++;
+                break;
+        case 3: part3();
+                currentPart++;
+                break;
+        case 4: part4();
+                currentPart++;
+                break;
+        case 5: part5_1();
+                part5_2();
+                currentPart++;
+                break;
+        case 6: part6();
+                currentPart = 1;
+                break;
+        
+    }
+}
+
+int main() {
+    selector.mode(PullUp);
+    wait(.01);
+    selector.attach_deasserted(&main_callback);
+    selector.setSampleFrequency();
+    while(1) 
+    {
+        continue;
+    }
+}

diff -r 000000000000 -r f10415100c39 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Mon Feb 11 04:31:13 2019 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/824293ae5e43
\ No newline at end of file