Diff: main.cpp

Revision:

8:1f2ac4a0744c

Parent:

7:e49685bca7c7

diff -r e49685bca7c7 -r 1f2ac4a0744c main.cpp
--- a/main.cpp	Wed Mar 11 08:46:57 2020 +0000
+++ b/main.cpp	Fri Apr 10 00:36:47 2020 +0000
@@ -1,44 +1,38 @@
 #include "mbed.h"
 #include "wdt.h"
+ 
+ // ------------Fault Injection Button-------------
+// lab6 first part of the demostration, 
+//all the functions have been tested 
+// -----------------------------------------------
 
-// Sample program using the Watchdog
-// ---------------------------------
-//    * Three threads co-operate to flash two LEDs
-//    * A simple way to inject a fault, by pressing a button 
-//    * The watchdog is configured with a 32ms timeout
-
-#define ON 1
+#define ON 1     
 #define OFF 0
 DigitalOut led_red(LED_RED, ON);
 DigitalIn button(PTD0, PullUp);
 DigitalOut led1(PTC12, OFF);
-DigitalOut led2(PTC13, OFF);
-
+DigitalOut led2(PTC13, OFF); // all the beginning sets 
 Serial pc(USBTX, USBRX); // tx, rx, useful for debugging
-
+ 
 // This ticker is used to feed the watch dog
 Ticker tick;
-
+ 
 // Threads
 Thread threadT ; // timer thread 
 Thread threadLED1 ; // thread LED1
 Thread threadLED2 ; // thread LED2
-
+ 
 # define ON1 0x01   
 # define ON2 0x02
 # define OFF1 0x04   
 # define OFF2 0x08
 EventFlags signals;  // event flags for signalling
-
-
-// ------------Fault Injection Button-------------
-//  Wait while the button is down
-//     Use this to simulate a STUCK fault
-// -----------------------------------------------
+ 
+ 
 void waitButton() {
     while (!button) ;  
 }
-
+ 
 // ---Thread for controlling LED 1----------------
 //   Turn LED1 on/off in response to signals 
 // -----------------------------------------------
@@ -48,10 +42,11 @@
         evt = signals.wait_any(ON1 | OFF1); // wait for either signal
         if (evt & ON1) led1 = ON ;
         if (evt & OFF1) led1 = OFF ;
-        waitButton() ;  // POSSIBLE FAULT HERE
+        wdt_kickA();
+        //waitButton() ;  // POSSIBLE FAULT HERE
     }
 }
-
+ 
 // ---Thread for controlling LED 2----------------
 //   Turn LED2 on/off in response to signals 
 // -----------------------------------------------
@@ -61,10 +56,11 @@
         evt = signals.wait_any(ON2 | OFF2); // wait for any signal
         if (evt & ON2) led2 = ON ;
         if (evt & OFF2) led2 = OFF ;
-        // waitButton() ; // POSSIBLE FAULT HERE
+        wdt_kickB();
+        //waitButton() ; // POSSIBLE FAULT HERE
     }
 }
-
+ 
 // ---Thread for timing --------------------------
 //   Send signals to the other threads
 // -----------------------------------------------
@@ -74,10 +70,10 @@
         signals.set(ON1 | ON2) ;
         ThisThread::sleep_for(1000) ;
         signals.set(OFF1 | OFF2) ;
-        // waitButton() ; // POSSIBLE FAULT HERE
+        waitButton() ; // POSSIBLE FAULT HERE
     }
 }
-
+ 
 // -----------MAIN-------------------------------
 //    Configure watchdog. Start threads. 
 //    Show start up with RED for 1sec
@@ -85,17 +81,14 @@
 //       - 1024ms to set it once
 //       - then must feed it every 32ms  
 // ----------------------------------------------
-
+ 
 int main(void) {
-    wdt_32ms() ; // initialise watchdog - 32ms timeout
-    wdt_kick_all() ;
-    tick.attach_us(callback(&wdt_kick_all), 20000); // ticks every 20ms    
-    
+    wdt_1sec() ; // initialise watchdog - 1sec timeout
+    wdt_kick_all() ;  
     // start threads
     threadT.start(timer_thread) ; // start the timer thread 
     threadLED1.start(led1_thread) ; // start the LED1 control thread 
-    threadLED2.start(led2_thread) ; // start the LED2 control thread 
-    
+    threadLED2.start(led2_thread) ; // start the LED2 control thread    
     // show start-up
     led_red = OFF;
     ThisThread::sleep_for(5000) ;
@@ -103,6 +96,6 @@
     
     // main thread does nothing more
     while (true) {
-        ThisThread::sleep_for(10000) ;
+        ThisThread::sleep_for(10000) ; //delay 
     }
 }
\ No newline at end of file