Diff: mainPart1.cpp

Revision:

0:5d459573c0dd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mainPart1.cpp	Thu Jan 03 22:33:59 2019 +0000
@@ -0,0 +1,170 @@
+#include "mbed.h"
+#include "Speaker.h"
+#include "PinDetect.h"
+#include <ctime>
+#include "uLCD_4DGL.h"
+#include "SDFileSystem.h"
+#include "TMP36.h"
+uLCD_4DGL uLCD(p28, p27, p29); // serial tx, serial rx, reset pin;
+SDFileSystem sd(p5, p6, p7, p8, "sd");
+
+//declare objects for pins used with pushbuttons
+PinDetect pb1(p18);
+PinDetect pb2(p17);
+PinDetect pb3(p16);
+
+//declare a speaker object
+Speaker mySpeaker(p21);
+
+//declare enums
+enum InputType {YES,NO};
+enum StateType {Q0, Q1, Q2, Q3};
+
+//declare rest of variables
+InputType input = NO;
+StateType state = Q0;
+char cipherText [1001];
+bool isWritten= false;
+
+// Callback routine is interrupt activated by a debounced pb3 hit
+void pb3_hit_callback (void)
+{
+    // ADD CODE HERE THAT YOU WHAT TO RUN WHEN INTERUPT IS GENERATED
+    input = NO;
+}
+    // Callback routine is interrupt activated by a debounced pb1 hit
+void pb1_hit_callback (void)
+    {
+        mkdir("/sd/mydir", 0777);
+                FILE *fp = fopen("/sd/mydir/OTP.txt", "w");
+                if(fp == NULL) {
+                    uLCD.printf("Error Open \n");
+                 }
+         
+                uLCD.cls();
+                 fprintf(fp, "%s", cipherText);
+                fclose(fp);
+                uLCD.printf("Done;");
+        input = YES;
+}
+        
+// Callback routine is interrupt activated by a debounced pb2 hit
+void pb2_hit_callback (void)
+ {
+         input = NO;
+}
+
+    
+int main() {
+    
+    //instantiatenew class to set p15 to analog input
+    //to read and convert TMP36 sensor's voltage output
+    TMP36 myTMP36(p15);
+    float tempC1, tempC2, tDiff;
+    srand (time(NULL));
+    int ary [1000];
+    
+    for(int i=0; i< 1000; i++){
+        int rando=0;
+        int fin=0;
+        rando = rand();
+        
+        tempC1 = myTMP36.read();
+        //wait(.1);
+        tempC2 = myTMP36.read();
+        tDiff = (tempC1-tempC2)*1000;
+        int TRN = static_cast<int>(tDiff);
+        fin = TRN + rando;
+        fin = fin% 26;
+        ary[i]=fin;
+        }
+        
+    for (int i = 0; i < 1000; i++){
+         int asciiVal = ary[i]+65;
+        char asciiChar = asciiVal;
+        cipherText[i]=asciiChar;
+    }
+    char z;
+    z=' ';
+    cipherText [1000]= z;
+    
+    
+    //Make both positioncipher files and initialize them to 1;
+    mkdir("/sd/mydir", 0777);
+    FILE *fp = fopen("/sd/mydir/positionCipherSender.txt", "w");
+    if(fp == NULL) {
+        uLCD.printf("Error Open \n");
+    }
+    fprintf(fp, "%i", 0);
+    fclose(fp);
+    mkdir("/sd/mydir", 0777);
+    fp = fopen("/sd/mydir/positionCipherReceiver.txt", "w");
+    if(fp == NULL) {
+        uLCD.printf("Error Open \n");
+    }
+    fprintf(fp, "%i", 0);
+    fclose(fp);
+    
+    //Initialize pins
+    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(); //default is 20KHz sampling
+pb2.setSampleFrequency();
+pb3.setSampleFrequency();
+// pushbuttons now setup and running
+
+while(1) {
+    switch(state){
+        case(Q0):
+            //Produce output for this state
+            if(!isWritten){
+                uLCD.cls();
+                uLCD.printf("Save to SD?");
+                isWritten=true;
+            }
+            //calculate next state
+            if (input == YES){
+                input = NO;
+                state = Q1;
+                isWritten=false;
+                uLCD.cls();
+                }
+            else {
+                state = Q0;
+                }
+            break;
+        
+        case (Q1):
+             //Produce output for this state
+             if(!isWritten){
+                uLCD.cls();
+                uLCD.printf("Save to another SD?");
+                isWritten=true;
+            }
+                
+              //calculate next state
+              if (input == YES){
+                 input = NO;
+                 state = Q1;
+                 isWritten=false;
+                 }
+            else //input should be stay
+                state = Q1;
+            break;
+            
+        }
+        //end switch
+        //wait (0.1);
+    }
+}
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