Diff: touch_modules.cpp

Revision:

37:92fcbf22bf91

Parent:

35:43133f017ed4

Child:

38:7238f3531ce9

--- a/touch_modules.cpp	Sat Jul 29 11:23:19 2017 +0000
+++ b/touch_modules.cpp	Sat Jul 29 12:12:28 2017 +0000
@@ -9,7 +9,7 @@
 unsigned int xt=0;
 unsigned int yt=0;
 Serial kc(USBTX, USBRX);
-
+Timer t1;
 
 void touch1()  //determining the touch co-ordinates
  {
@@ -20,13 +20,32 @@
  }
 
 
-void detect_touch()   // detect the touch //debounce
+void detect_touch(unsigned char display_state)   // detect the touch //debounce
 {
-    
-while(i==1)
-{
-    while(Touch_D)//touch detection 
+kc.printf("display state=%d\n",display_state);
+uint32_t time_ms=0;
+switch (display_state)
+
+  {
+  
+  case 3:    time_ms= 3000000;      // timer for 5 min 
+             touch_func_with_timer(time_ms);   
+             break;
+  case 6:    time_ms= 60000;       // timer for 1 min
+             touch_func_with_timer(time_ms);   
+             break;
+  default :  touch_func_without_timer();
+             break;
+               
+    }
+} 
+
+ void touch_func_without_timer()
+ {
+    while(i==1)
     {
+        while(Touch_D)//touch detection 
+        {
          wait_ms(200); ///wait for debounce check
            if (Touch_D)
            {   
@@ -39,11 +58,14 @@
           //kc.printf("touch");
            
          }
- }
-  EnableTouch();
+    }
+}
+
+void no_touch()
+{
+   xt=0;yt=0;
   
-  }
-
+ }
 
 
 unsigned char touch_main()    //determining the touch for home screen
@@ -129,10 +151,14 @@
                                  state=1;
                         
                        }
-                   
+                  else if (xt==0 && yt==0)
+                  {
+                      state=1;
+                      }                    
                 else 
+                {
                      state=10;      // default -  goes to wait for a valid touch
-                   
+                 }  
          return state;     
     }
 
@@ -182,6 +208,10 @@
                                      state=8;
                                      else if (type==2)
                                      state=9;
+                        }
+                       else if (xt==0 && yt==0)
+                  {
+                      state=3;
                        }
               else 
                      state=10;                      
@@ -449,4 +479,48 @@
     DigitalOut XL(PTC13);
     DigitalOut YU(PTC0);
     DigitalOut XR(PTB0);
-    }
\ No newline at end of file
+    }
+
+uint32_t get_timer()
+{
+    kc.printf("time=%d",t1.read_ms());
+    return  t1.read_ms(); 
+ }    
+ 
+ 
+ 
+void touch_func_with_timer(uint32_t time_ms)
+  {
+       t1.reset();
+       while(i==1)
+          {
+             t1.start(); 
+            if (get_timer()<time_ms)
+               {
+                  while(Touch_D)//touch detection 
+                    {
+                      wait_ms(200); ///wait for debounce check
+                        if (Touch_D)
+                             {   
+                               Touch_D.fall(&touch1);
+            
+                                  //determine the touch co-ordinates
+                                break;
+                             }
+                       DisableTouch();
+          //kc.printf("touch");
+           
+                  }
+              }
+          else 
+             {
+                t1.stop();
+                t1.reset();
+                DisableTouch();
+                no_touch();
+                break;
+               
+             }
+         
+ }
+}
\ No newline at end of file