Diff: main.cpp

Revision:

0:e60a35ddc5d6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Feb 04 07:49:32 2020 +0000
@@ -0,0 +1,134 @@
+#include "mbed.h"
+
+DigitalOut led1(LED1);
+
+Thread t1;
+Thread t2;
+
+Serial pc(USBTX, USBRX, 9600);
+
+int ton = 500;
+int toff = 500;
+char tmp;
+int plusminus;
+
+Mutex mutex;
+
+void led_blink()
+{
+    while(1){
+        led1 = 1;
+        ThisThread::sleep_for(ton);
+        led1 = 0;
+        ThisThread::sleep_for(toff);
+    }
+}
+
+void interface()
+{
+    while(1){
+        if(pc.readable())
+        {
+            tmp = pc.getc();
+            
+            if(tmp == 'H')
+            {
+                printf("High wird geaendert\n");
+                
+                while(plusminus != 'L' && plusminus != 'R')
+                {
+                    plusminus = pc.getc();
+                    
+                    if(plusminus == '+')
+                    {
+                        mutex.lock();
+                        ton += 100;
+                        
+                        if(ton >= 2000)
+                        {
+                            printf("Maximalwert erreicht\n");
+                            ton = 2000;
+                        }
+                        
+                        mutex.unlock();
+                        printf("Ton = %d\n", ton);
+                    }
+                    
+                    if(plusminus == '-')
+                    {
+                        mutex.lock();
+                        ton -= 100;
+                        
+                        if(ton <= 100)
+                        {
+                            printf("Minimalwert erreicht\n");
+                            ton = 100;
+                        }
+                        
+                        mutex.unlock();
+                        printf("Ton = %d\n", ton);
+                    }
+                }
+            } 
+            
+            if(tmp == 'L')
+            {
+                printf("Low wird geaendert\n");
+                
+                while(plusminus != 'H' && plusminus != 'R')
+                {
+                    plusminus = pc.getc();
+                    
+                    if(plusminus == '-')
+                    {
+                        mutex.lock();
+                        toff -= 100;
+                        
+                        if(toff <= 100)
+                        {
+                            printf("Minimalwert erreicht\n");
+                            toff = 100;
+                        }
+                        
+                        mutex.unlock();
+                        printf("Toff = %d\n", toff);
+                    }
+                    
+                    if(plusminus == '+')
+                    {
+                        mutex.lock();
+                        toff += 100;
+                        
+                        if(toff >= 2000)
+                        {
+                            printf("Maximalwert erreicht\n");
+                            toff = 2000;
+                        }
+                        
+                        mutex.unlock();
+                        printf("Toff = %d\n", toff);
+                    }
+                }
+                
+            } 
+            
+            if(tmp == 'R')
+            {
+                printf("Reset\n");
+                
+                mutex.lock();
+                ton = 500;
+                toff = 500;
+                
+            } 
+        }
+    }
+}
+
+int main() {    
+        t1.start(led_blink);
+        t2.start(interface);
+    
+    while(1) {
+    }
+}