Diff: target_handling.cpp

Revision:

28:689c3880e0e4

Parent:

26:a63e73885b21

Child:

35:0b434ef4af49

--- a/target_handling.cpp	Thu Sep 19 01:08:20 2013 +0000
+++ b/target_handling.cpp	Fri Sep 20 00:40:08 2013 +0000
@@ -12,31 +12,38 @@
     target_param    *tpp;
     char            str_buf0[ STR_BUFF_SIZE ];
     char            str_buf1[ STR_BUFF_SIZE ];
+    int             retry_count = 3;
 
     set_target_baud_rate( baud_date );
-    
-    reset_target( ENTER_TO_ISP_MODE );
-    
-    try_and_check( "?", "Synchronized", 0 );
-    
+
+    while ( retry_count-- ) {
+        reset_target( ENTER_TO_ISP_MODE );
+
+        if ( !try_and_check( "?", "Synchronized", 0 ) )
+            break;
+    }
+
+    if ( !retry_count )
+        return ( NULL );
+        
     try_and_check2( "Synchronized\r\n", "OK", 0 );
     try_and_check2( "12000\r\n", "OK", 0 );
     try_and_check2( "U 23130\r\n", "0", 0 );
     try_and_check2( "A 0\r\n", "0", 0 );
-    
+
     try_and_check( "K\r\n", "0", 0 );
     get_string( str_buf0 );
     get_string( str_buf1 );
-    
+
     printf( "    result of \"K\" = %s %s\r\n", str_buf0, str_buf1 );
-    
+
     try_and_check( "J\r\n", "0", 0 );
     get_string( str_buf0 );
-    
+
     printf( "    result of \"J\" = %s\r\n", str_buf0 );
-    
+
     tpp  = find_target_param( str_buf0 );
-    
+
     return ( tpp );
 }
 
@@ -46,10 +53,10 @@
     reset_pin   = 1;
     isp_pin     = isp_pin_state;
     wait_ms( 100 );
-    
+
     reset_pin   = 0;
     wait_ms( 100 );
-    
+
     reset_pin   = 1;
     wait_ms( 100 );
 }