Diff: main.cpp

Revision:

7:89a6d9004710

Parent:

6:ab02d7bb40cb

Child:

8:8991b0b82440

--- a/main.cpp	Tue Feb 17 19:58:06 2015 +0000
+++ b/main.cpp	Sun Feb 22 17:53:02 2015 +0000
@@ -7,7 +7,7 @@
 Timer t1;
 
 
-//Initialize Input that is 8 character
+//Initialize Input buffer
 char input[10];
 
   
@@ -27,12 +27,14 @@
                 printf("Input Desired Tone: Frequency (Hz) Duration (ms) followed by enter\r");
                 char c = pc.getc();
                 int i =0;
+                
+                //wait for return to be pressed
                 while(c != '\r') {
-                        printf("%c",c);
-                        input[i++]=c;
+                        printf("%c",c);  //echo
+                        input[i++]=c;    //add current char to buffer
                         c = pc.getc();
                     }
-                    input[i] = '\0';
+                    input[i] = '\0';    //end buffer
                 //fgets(input, sizeof input, stdin);  //input size length 9 followed by enter (xxxx xxxx/r)
                 isint = sscanf(input, "%f %d",&freq,&dur);      //assign input variables
                 
@@ -43,6 +45,8 @@
             
             }
         
+        
+          //wait for another enter to output the tone
           if(pc.readable()) {
               //if enter is pressed continue to output tone
               if(pc.getc() == '\r')
@@ -64,7 +68,8 @@
                 t1.stop();
                 
              }
-            //if anyother button is pressed abort and start over
+             
+            //if another button is pressed besides enter abort and start over
              else{
                 printf("You didn't press enter you idiot\r");
                 isint = 0;