Diff: main.cpp

Revision:

107:e7084caca83a

Parent:

105:ed03c03b353e

Child:

108:61d009929518

--- a/main.cpp	Fri Nov 22 16:00:04 2019 +0000
+++ b/main.cpp	Fri Oct 01 18:16:36 2021 +0000
@@ -1,23 +1,49 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2019 ARM Limited
- * SPDX-License-Identifier: Apache-2.0
- */
-
+/*
+Project: 21_BitTests_v5
+File: main.cpp
+ 
+Explores literal integers and bitwise operations.
+ 
+Last modified 9/30/21 by C. S. Tritt (v. 1.0)
+*/
 #include "mbed.h"
-#include "platform/mbed_thread.h"
 
+// Pulse durations.
+const int SPULSE = 500;
+const int LPULSE = 1000;
 
-// Blinking rate in milliseconds
-#define BLINKING_RATE_MS                                                    500
-
-
+// Construct a transmit only serial connection over our USB.
+Serial pc(USBTX, NC, 9600); // Serial channel to PC.
+// Construct a 8-bit BusOut bargraph display.
+BusOut barGraph(D2, D3, D4, D5, D6, D7, D8, D9);  // The display.
+ 
 int main()
 {
-    // Initialise the digital pin LED1 as an output
-    DigitalOut led(LED1);
-
-    while (true) {
-        led = !led;
-        thread_sleep_for(BLINKING_RATE_MS);
+    while (true) { // Main loop.
+        // Set some values.
+        unsigned char myIntA = 0b10101010; // Binary. 170_10.
+        unsigned char myIntB = 0x3E; // Hex. 62_10.
+        unsigned char myIntC = 077; // Octal, 63_10.
+        
+        // Do a bitwise operation.
+        unsigned char myIntD = myIntA | myIntB;
+          
+        // Send output to PC and bargraph.
+        pc.printf("myIntA = %d (base 10).\n", myIntA);
+        barGraph = myIntA;
+        ThisThread::sleep_for(SPULSE);
+    
+        pc.printf("myIntB = %X (Hexadecimal).\n", myIntB);
+        barGraph = myIntB;
+        ThisThread::sleep_for(SPULSE);
+    
+        pc.printf("myIntC = %o (Octal).\n", myIntC);
+        barGraph = myIntC;
+        ThisThread::sleep_for(SPULSE);
+    
+        pc.printf("myIntD = %X (Hexadecimal).\n", myIntD);
+        barGraph = myIntD;
+        ThisThread::sleep_for(LPULSE);
+        pc.printf("Repeating...\n\n");
     }
-}
+}
\ No newline at end of file