Benjamin Leverett / Mbed 2 deprecated Final_Project_2

Ben with semaphore test 1

Dependencies:   mbed mbed-rtos 4DGL-uLCD-SE SDFileSystem ATParser

Files at this revision

API Documentation at this revision

Revision 7:9b36eb4811eb, committed 2020-04-24

Comitter:
bleverett3
Date:
Fri Apr 24 22:00:23 2020 +0000
Parent:
6:be33395fe424
Commit message:
Ben "change" test 1

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file 
diff -r be33395fe424 -r 9b36eb4811eb main.cpp
--- a/main.cpp	Fri Apr 24 21:40:31 2020 +0000
+++ b/main.cpp	Fri Apr 24 22:00:23 2020 +0000
@@ -33,6 +33,7 @@
 char buffer[10];
 volatile int risk_level = 0;
 int temp_risk = -1;
+int changed = 0;
 
 //RTOS Mutex Lock
 Mutex mutex_lock;
@@ -57,7 +58,6 @@
 void parse_RSSI()
 {
     mutex_lock.lock();
-    lcd_lock.lock();
     at.send("AT+BLEGETRSSI") && at.read(buffer, 10);
     if(buffer[0] == '-') {
         //datalogged = 1;
@@ -87,7 +87,7 @@
             }
             if(risk_level != temp_risk) {
                 risk_level = temp_risk;
-                lcd_lock.unlock();
+                changed = 1;
             }
         }
         pc.printf("Risk level: ");
@@ -149,37 +149,38 @@
     mutex_lock.unlock();
     while(1){
         mutex_lock.lock();
-        lcd_lock.lock();
-        if(risk_level <= 1){
-            uLCD.cls();
-            uLCD.locate(5, 7);
-            uLCD.text_width(2);
-            uLCD.text_height(2);
-            uLCD.background_color(GREEN);
-            uLCD.textbackground_color(GREEN);
-            uLCD.printf("Safe");
-        }else if(risk_level == 2){
-            uLCD.cls();
-            uLCD.locate(1, 7);
-            uLCD.text_width(2);
-            uLCD.text_height(2);
-            uLCD.background_color(0xFFFF00);
-            uLCD.textbackground_color(0xFFFF00);
-            uLCD.printf("Cautious");
-        }else if(risk_level == 3){
-            uLCD.cls();
-            uLCD.locate(3, 7);
-            uLCD.text_width(2);
-            uLCD.text_height(2);
-            uLCD.background_color(RED);
-            uLCD.textbackground_color(RED);
-            uLCD.printf("Hazard");
-        }else{
-            uLCD.background_color(BLACK);
-            uLCD.printf("waiting");
+        if (changed) {
+            if(risk_level <= 1){
+                uLCD.cls();
+                uLCD.locate(5, 7);
+                uLCD.text_width(2);
+                uLCD.text_height(2);
+                uLCD.background_color(GREEN);
+                uLCD.textbackground_color(GREEN);
+                uLCD.printf("Safe");
+            }else if(risk_level == 2){
+                uLCD.cls();
+                uLCD.locate(1, 7);
+                uLCD.text_width(2);
+                uLCD.text_height(2);
+                uLCD.background_color(0xFFFF00);
+                uLCD.textbackground_color(0xFFFF00);
+                uLCD.printf("Cautious");
+            }else if(risk_level == 3){
+                uLCD.cls();
+                uLCD.locate(3, 7);
+                uLCD.text_width(2);
+                uLCD.text_height(2);
+                uLCD.background_color(RED);
+                uLCD.textbackground_color(RED);
+                uLCD.printf("Hazard");
+            }else{
+                uLCD.background_color(BLACK);
+                uLCD.printf("waiting");
+            }
+            changed = 0;
         }
         mutex_lock.unlock();
-        lcd_lock.unlock();
     }
 }