Diff: keyboard2.cpp

Revision:

13:d60c746c097c

Parent:

12:7e350a27f936

Child:

17:b3545e9d38f7

--- a/keyboard2.cpp	Sun Jul 20 20:11:24 2014 +0000
+++ b/keyboard2.cpp	Mon Jul 21 14:24:15 2014 +0000
@@ -37,7 +37,7 @@
 void CDU_KB_COMM_INIT()
 {   //initialize communication with TCA84818
     char cmd[2];
-    
+    Key_led = 0;
     cmd[0] = REG_CFG; //pointer byte to CFG register
     cmd[1] = 0x01; //data for CFG register KE_IEN set to 1
     if ( CDU_I2C.write(CDU_KB_ADRS,cmd, 2) == I2C_ACK ) //initiate write cycle and check for ACK
@@ -158,19 +158,29 @@
             //switch off backlighting
             BGL_LED = 0.0 ;
             LightOn = 0;
+            FullBright = 0;
             break;
         }
         case 100:
         {
-            //switch on backlighting
+            //switch on backlighting to normal
             BGL_LED = BGL_POT;
             LightOn = 1;
+            FullBright = 0;
             break;
         }
+        
+        case 128:
+        {
+            //switch backlighting to MAX
+            BGL_LED= 1;
+            FullBright = 1;   
+        }
+    
         case 255:
         {
             //calculate percentage from potmeter value
-            if ( LightOn == 1)
+            if ( ( LightOn == 1) && (FullBright== 0) )
             {
                 if ( BGL_POT < 0.01 )
                     {
@@ -181,6 +191,11 @@
                         BGL_LED = BGL_POT; 
                     }
             }
+            else  if ( ( LightOn == 1) && (FullBright== 1) ) 
+            {
+                BGL_LED = 1;
+                
+            }
         }
     }
 }    
\ No newline at end of file