Diff: camera_api.cpp

Revision:

1:82bc25a7b68b

Parent:

0:68c173249c01

Child:

2:c51647d3c14d

--- a/camera_api.cpp	Sun May 25 12:41:59 2014 +0000
+++ b/camera_api.cpp	Tue Jun 03 15:53:55 2014 +0000
@@ -0,0 +1,91 @@
+#include "mbed.h"
+#include "camera_api.h"
+
+#define clk 2  //ms
+
+ 
+ BX_camera::BX_camera(char cam){
+     
+     
+     cam_clk= new DigitalOut(PTE1) ;
+
+     si = new DigitalOut(PTD7);
+    
+     line_Cam = new FastAnalogIn(PTD5); 
+     
+     
+     
+     
+     
+     
+     }
+ 
+ 
+void BX_camera::read(void){
+ 
+ 
+        w_f_v=0x0000;
+        b_f_v=0xffff;
+ 
+ 
+        
+           *si=1;
+            *cam_clk=1;
+           
+           wait_us(30);   // tune here
+           *si=0;
+           *cam_clk=0;
+            
+            
+ 
+          line_Cam->enable();
+          
+          
+       //input 128   
+          
+          for(int i=0;i<128;i++){     
+             *cam_clk=1;   
+             wait_us(5);
+             
+             
+             line_image[i]=line_Cam->read_u16();
+         
+         
+         //  big small    
+             if(line_image[i] > w_f_v) 
+                w_f_v=line_image[i];
+             else if(line_image[i] < b_f_v )
+                b_f_v = line_image[i];
+                
+             
+             
+             
+             *cam_clk=0;
+             wait_us(5);
+        
+           
+           }
+           
+           
+           line_Cam->disable();
+           
+           
+           
+           //filter
+           
+          for(int i=0;i<128;i++){   
+           
+           
+               if( (line_image[i]-b_f_v) < (w_f_v - line_image[i] )    ) 
+                   sign_line_image[i]=' ';
+               else
+                   sign_line_image[i]='O';    
+           
+              if(i==0)
+                 sign_line_image[i]='X';
+           
+          }
+           
+           
+           
+           }
\ No newline at end of file