University of Plymouth - Stages 1, 2 and 3 / Mbed OS Task329

Demonstrates a race condition

Diff: main.cpp

Revision:
5:5dcfbaa2e549
Parent:
4:e1c35030b91a
--- a/main.cpp	Wed Sep 18 10:28:12 2019 +0000
+++ b/main.cpp	Wed Sep 18 10:31:06 2019 +0000
@@ -5,7 +5,7 @@
 #define PRESSED  1
 
 #ifdef TARGET_NUCLEO_F429ZI
-#define ONBOARD
+//#define ONBOARD
 #endif
 
 #ifdef ONBOARD
@@ -29,7 +29,6 @@
     //RED MEANS THE COUNT UP FUNCTION IS IN ITS CRITICAL SECTION
     red_led = 1;
     for (unsigned int n=0; n<N; n++) {
-        CriticalSectionLock::enable();
         counter++; 
         counter++;
         counter++;
@@ -40,7 +39,6 @@
         counter++;
         counter++;
         counter++; 
-        CriticalSectionLock::disable();
     }  
     red_led = 0; 
     
@@ -56,7 +54,6 @@
     //YELLOW MEANS THE COUNT DOWN FUNCTION IS IN ITS CRITICAL SECTION
     yellow_led = 1;
     for (unsigned int n=0; n<N; n++) {
-        CriticalSectionLock::enable();
         counter--;
         counter--;
         counter--;
@@ -67,7 +64,6 @@
         counter--;
         counter--;
         counter--;  
-        CriticalSectionLock::disable(); 
     }
     yellow_led = 0;