target_handling.cpp

00001 #include    "mbed.h"
00002 #include    "target_handling.h"
00003 #include    "target_table.h"
00004 #include    "command_interface.h"
00005 #include    "serial_utilities.h"
00006 #include    "_user_settings.h"
00007 
00008 
00009 DigitalOut      reset_pin( p26 );
00010 DigitalOut      isp_pin( p25 );
00011 
00012 
00013 target_param *open_target( int baud_date )
00014 {
00015     target_param    *tpp;
00016     char            str_buf0[ STR_BUFF_SIZE ];
00017     char            str_buf1[ STR_BUFF_SIZE ];
00018     int             retry_count = 3;
00019 
00020     set_target_baud_rate( baud_date );
00021 
00022     while ( retry_count-- ) {
00023         reset_target( ENTER_TO_ISP_MODE );
00024 
00025         if ( !try_and_check( "?", "Synchronized" ) )
00026             break;
00027     }
00028 
00029     if ( !retry_count )
00030         return ( NULL );
00031         
00032     try_and_check2( "Synchronized\r\n", "OK" );
00033     try_and_check2( "12000\r\n", "OK" );
00034     try_and_check2( "U 23130\r\n", "0" );
00035     try_and_check2( "A 0\r\n", "0" );
00036 
00037     try_and_check( "K\r\n", "0" );
00038     get_string( str_buf0 );
00039     get_string( str_buf1 );
00040 
00041 #ifndef SUPPRESS_COMMAND_RESULT_MESSAGE
00042     printf( "    result of \"K\" = %s %s\r\n", str_buf0, str_buf1 );
00043 #endif
00044 
00045     try_and_check( "J\r\n", "0" );
00046     get_string( str_buf0 );
00047 
00048 #ifndef SUPPRESS_COMMAND_RESULT_MESSAGE
00049     printf( "    result of \"J\" = %s\r\n", str_buf0 );
00050 #endif
00051 
00052     tpp  = find_target_param( str_buf0 );
00053 
00054     return ( tpp );
00055 }
00056 
00057 
00058 void reset_target( int isp_pin_state )
00059 {
00060     reset_pin   = 1;
00061     isp_pin     = isp_pin_state;
00062     wait_ms( 100 );
00063 
00064     reset_pin   = 0;
00065     wait_ms( 100 );
00066 
00067     reset_pin   = 1;
00068     wait_ms( 100 );
00069 }
00070