Diff: main.cpp

Revision:

2:58d85409f7ff

Parent:

1:768b8bd42e33

Child:

3:346ef671ef28

--- a/main.cpp	Tue Jan 29 02:34:03 2013 +0000
+++ b/main.cpp	Thu Jan 31 03:15:20 2013 +0000
@@ -1,57 +1,137 @@
+// skeleton code for ECE 2036 thermostat lab
+// code must be added by students
 #include "mbed.h"
+#include "TMP36.h"
+#include "SDFileSystem.h"
+#include "TextLCD.h"
 #include "PinDetect.h"
-// must import Cookbook PinDetct library into project
-// URL: http://mbed.org/users/AjK/libraries/PinDetect/lkyxpw
+#include "Speaker.h"
+// must add your new class code to the project file Shiftbrite.h
+#include "Shiftbrite.h"
+
+// use class to setup temperature sensor pins
+TMP36 myTMP36(p15);  //Analog in
 
-DigitalOut myled(LED1);
-DigitalOut myled2(LED2);
-DigitalOut myled3(LED3);
-DigitalOut myled4(LED4);
+// use class to setup microSD card filesystem
+SDFileSystem sd(p5, p6, p7, p8, "sd");
+
+// use class to setup the LCD
+TextLCD myLCD(p22, p23, p24, p25, p26, p27); // rs, e, d4-d7
+
+// use class to setup pushbuttons pins
+PinDetect pb1(p28);
+PinDetect pb2(p29);
+PinDetect pb3(p30);
+
+// use class to setup speaker pin
+Speaker mySpeaker(p21); //PWM out
 
-PinDetect pb1(p8);
-PinDetect pb2(p7);
-// SPST Pushbutton debounced count demo using interrupts and callback
-// no external PullUp resistor needed
-// Pushbutton from P8 to GND.
-// Second Pushbutton from P7 to GND.
-// A pb hit generates an interrupt and activates the callback function
-// after the switch is debounced
+// use class to setup Shiftbrite pins
+Shiftbrite myShiftbrite(p9, p10, p11, p12, p13);// ei li di n/c ci
+
+// use class to setup Mbed's four on-board LEDs
+DigitalOut myLED1(LED1);
+DigitalOut myLED2(LED2);
+DigitalOut myLED3(LED3);
+DigitalOut myLED4(LED4);
+
+// heat or code mode jumper - removed when pushbuttons added
+DigitalIn jumper_wire(p14);
 
-// Global count variable
-int volatile count=0;
+//also setting any unused analog input pins to digital outputs reduces A/D noise a bit
+//see http://mbed.org/users/chris/notebook/Getting-best-ADC-performance/
+DigitalOut P16(p16);
+DigitalOut P17(p17);
+DigitalOut P18(p18);
+DigitalOut P19(p19);
+DigitalOut P20(p20);
+
+
+
+
+// Global variables used in callbacks and main program
+// C variables in interrupt routines should use volatile keyword
+int volatile heat_setting=78; // heat to temp
+int volatile cool_setting=68; // cool to temp
+bool volatile mode=false; // heat or cool mpde
 
 // Callback routine is interrupt activated by a debounced pb1 hit
-void pb1_hit_callback (void) {
-    count++;
-    myled4 = count & 0x01;
-    myled3 = (count & 0x02)>>1;
-    myled2 = (count & 0x04)>>2;
+void pb1_hit_callback (void)
+{
+// ADD CODE HERE
 }
 // Callback routine is interrupt activated by a debounced pb2 hit
-void pb2_hit_callback (void) {
-    count--;
-    myled4 = count & 0x01;
-    myled3 = (count & 0x02)>>1;
-    myled2 = (count & 0x04)>>2;
+void pb2_hit_callback (void)
+{
+// ADD CODE HERE
+}
+// Callback routine is interrupt activated by a debounced pb3 hit
+void pb3_hit_callback (void)
+{
+// ADD CODE HERE
 }
-int main() {
+
 
-    // Use internal pullups for pushbutton
-    pb1.mode(PullUp);    
+int main()
+{
+    float Current_temp=0.0;
+
+    // Use internal pullups for the three pushbuttons
+    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(&pb2_hit_callback);
     // Start sampling pb inputs using interrupts
     pb1.setSampleFrequency();
     pb2.setSampleFrequency();
-    //Blink myled in main routine forever while responding to pb changes
-    // via interrupts that activate the callback counter function
+    pb2.setSampleFrequency();
+    // pushbuttons now setup and running
+
+
+    // start I/O examples - DELETE THIS IN YOUR CODE..BUT WILL USE THESE I/O IDEAS ELSEWHERE
+    // since all this compiles - the needed *.h files for these are in the project
+    //
+    Current_temp = myTMP36;
+    printf("Hello PC World\n\r"); // need terminal application running on PC to see this
+    myLCD.printf("Hello LCD World"); // LCD
+    mySpeaker.PlayNote(500.0, 1.0, 1.0); // Speaker buzz
+    myShiftbrite.write( 0, 50 ,0); // Green RGB LED
+    // SD card write file example - prints error message on PC when running until SD card hooked up
+    FILE *fp = fopen("/sd/mydir/sdtest.txt", "w"); //open SD
+    if(fp == NULL) {
+        error("Could not open file for write\n");
+    }
+    fprintf(fp, "Hello SD Card World!"); // write SD
+    fclose(fp); // close SD card
+    //
+    // end I/O examples
+
+
+
+
+    // State machine code below will need changes
     while (1) {
-        myled = !myled;
-        wait(.5);
+        {
+            enum Statetype { Heat_off = 0, Heat_on };
+            Statetype state = Heat_off;
+            while(1) {
+                switch (state) {
+                    case Heat_off:
+                        myLED2 = 0;
+                        state = Heat_on;
+                        break;
+                    case Heat_on:
+                        myLED2 = 1;
+                        state = Heat_off;
+                        break;
+                }
+                wait(0.33);
+            }
+        }
     }
-
 }
\ No newline at end of file