Diff: main.cpp

Revision:

0:943cf409664f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Mar 19 10:37:59 2019 +0000
@@ -0,0 +1,63 @@
+/* Copyright (c) 2017 STMicroelectronics
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/****************************************************
+*           RAPID PROTOTYPING WITH NUCLEO           *
+* Example Code 07: Thread usage                     *
+* Author: Mauro D'Angelo                            *
+* Organization: STMicroelectronics                  *
+*****************************************************/
+
+#include "mbed.h"
+
+// It declares a thread
+Thread thread;
+
+// mybutton variable's type is DigitalIn. It points to the user button available on the board
+DigitalIn mybutton(USER_BUTTON);
+
+DigitalOut myled(LED1);
+
+// It is the interval
+float delay = 0;
+
+// Implementa la funzione associata al Thread
+// Quando viene premuto il pulsante (mybutton == 0) 
+// viene impostato il nuovo valore della variabile delay
+
+// This is the function started as thread
+void button_thread(void) {
+    while(true) {
+        if (mybutton == 0) { // Button is pressed
+            if (delay == 1.0)
+                delay = 0.2; // 200 ms
+            else
+                delay = 1.0; // 1 sec
+            wait(.2);
+        }// if button
+    wait(.05);
+    }
+}
+
+int main() {  
+    // Threads start here. Here it is attached the function
+    thread.start(button_thread);
+    
+    // Blinking led
+    while(true) {
+        myled = !myled;
+        wait(delay);
+    }
+}