Diff: main.cpp

Revision:

0:08f1d029d089

Child:

2:bea5a01bd4d8

diff -r 000000000000 -r 08f1d029d089 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Sep 24 12:26:21 2015 +0000
@@ -0,0 +1,55 @@
+#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;
+
+    //Main Loop
+    while(1) {
+        
+        u = 0;             //Set initial value
+        binaryOutput = u;  //Show binary on LED's
+        waitForButtonPress();   //Call function      
+  
+        //Here is the first - use | to set bit 1 
+        u = u | 2;        //OR with binary 010
+        binaryOutput = u; 
+        waitForButtonPress();   
+                               
+        //Modify u with the | to set bit 2
+        //WRITE CODE HERE 
+
+        binaryOutput = u;   
+        waitForButtonPress();                           
+
+
+        //Modify u with the | to set bit 0
+        //WRITE CODE HERE 
+
+        binaryOutput = u;   
+        waitForButtonPress();   
+        
+    } //end while(1)
+} //end main
+
+//This is known as a C function.
+//This saves a lot of code repetition
+void waitForButtonPress() {
+    while (SW1 == 0);
+    wait(0.25);
+    while (SW1 == 1);
+}
\ No newline at end of file