Diff: main.cpp

Revision:

0:807cc79e50f0

Child:

2:1e53c842f790

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Sep 24 12:27:10 2015 +0000
@@ -0,0 +1,66 @@
+#include "mbed.h"
+
+//Global objects
+BusOut binaryOutput(D5, D6, D7);
+DigitalIn SW1(D4);
+
+//Function prototypes
+void waitForButtonPress();
+
+//Main function
+int main() {
+
+    //Create a variable to hold the bit pattern
+    unsigned int u;
+
+    //Flash LED's to indicate the code is running
+    binaryOutput = 7;
+    wait(0.5);
+    binaryOutput = 0;
+
+    while(1) {
+        
+        u = 0;             //Set initial value 0
+        binaryOutput = u;  //Show binary on LED's
+        waitForButtonPress(); //Call function      
+  
+        //Use & to toggle bit 0 
+        u = u ^ 1;          //XOR with binary 001
+        binaryOutput = u;   
+        waitForButtonPress();   
+                               
+        //Toggle bit 1
+        u = u ^ 2;  //XOR with 010
+        binaryOutput = u;   
+        waitForButtonPress();                          
+
+
+        //Toggle bit 2
+        u = u ^ 4;  //XOR with 100
+        binaryOutput = u;   
+        waitForButtonPress();   
+        
+        //Toggle bits 0 and 2
+        u = u ^ 5;
+        binaryOutput = u;   
+        waitForButtonPress();  
+        
+        //Toggle all bits
+        u = u ^ 7;
+        binaryOutput = u;   
+        waitForButtonPress();
+        
+        //Toggle all bits
+        u = u ^ 7;
+        binaryOutput = u;   
+        waitForButtonPress();               
+        
+    } //end while(1)
+} //end main
+
+
+void waitForButtonPress() {
+    while (SW1 == 0);
+    wait(0.25);
+    while (SW1 == 1);
+}
\ No newline at end of file