Diff: main.cpp

Revision:

5:62b2d643b132

Parent:

3:a7f02754bc99

--- a/main.cpp	Tue Nov 07 13:24:50 2017 +0000
+++ b/main.cpp	Thu Dec 07 14:51:51 2017 +0000
@@ -1,8 +1,3 @@
-// A solution to OCE360 Homework #4.
-// Objective: Use object oriented programming to create a system that displays
-// multiple balls bouncing around the LCD screen.
-// Stephen Licht, 11/7/2017
-
 #include "mbed.h"
 #include "MMA8452Q.h"           //acceleromater library
 #include "uLCD_4DGL.h"          //LCD library
@@ -30,8 +25,27 @@
 physics_ball ball1;  //initialize two balls for bouncing
 physics_ball ball2;  //the default states from the library will be used initially
 
+// External Interrupts
+InterruptIn button(p18);
+InterruptIn freefall_acc(p17);
+Timer debounce;
+
+
+// Response to the hardware interrupt(button being pressed), set speed of balls = 0
+void Freeze_button(){
+    ball1.set_state(ball1.posx, ball1.posy,0,0);
+    ball2.set_state(ball2.posx, ball2.posy,0,0);
+    wait(2);
+    debounce.reset();
+    }
+//void Freeze_ff(){
+    //if 
+
 int main()
 {
+    button.mode(PullUp); // use internal resistors in button in order to keep output reading "high", then when button switched it will fall
+    button.fall(&Freeze_button); //freeze accelerometer for 2 sec when button is pressed
+    
     // Initialize uLCD
     uLCD.baudrate(115200);
     uLCD.background_color(BLACK);