Kazuki Yamamoto / Mbed 2 deprecated ika_shouyu_poppoyaki

Ika Shouyu Poppoyaki - LPC82x supported

Dependencies:   MODSERIAL mbed

Fork of ika_shouyu_poppoyaki by Tedd OKANO

main.cpp@12:5a33b5d39792, 2013-08-27 (annotated)

Committer:
okano
Date:
Tue Aug 27 05:47:02 2013 +0000
Revision:
12:5a33b5d39792
Parent:
11:8dfc3217d1ca
Child:
13:60995bf8b2c7
Now this can write LPC810!

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okano 11:8dfc3217d1ca 1 /**
okano 11:8dfc3217d1ca 2 * Sample of ISP operation for NXP MCUs
okano 11:8dfc3217d1ca 3 *
okano 11:8dfc3217d1ca 4 * @author Akifumi (Tedd) OKANO, NXP Semiconductors
okano 12:5a33b5d39792 5 * @version 0.5
okano 11:8dfc3217d1ca 6 * @date Aug-2013
okano 11:8dfc3217d1ca 7 */
okano 11:8dfc3217d1ca 8
okano 5:ff30f5b58617 9 #include "mbed.h"
okano 5:ff30f5b58617 10 #include "target_table.h"
okano 0:6baefda2e511 11
okano 2:8d75eb0ecd20 12 BusOut leds( LED4, LED3, LED2, LED1 );
okano 2:8d75eb0ecd20 13 DigitalOut reset_pin( p26 );
okano 2:8d75eb0ecd20 14 DigitalOut isp_pin( p25 );
okano 2:8d75eb0ecd20 15 Serial target ( p28, p27 );
okano 2:8d75eb0ecd20 16 LocalFileSystem local( "local" );
okano 0:6baefda2e511 17
okano 12:5a33b5d39792 18 #define ENTER_TO_ISP_MODE 0
okano 12:5a33b5d39792 19 #define NO_ISP_MODE 1
okano 12:5a33b5d39792 20 #define STR_BUFF_SIZE 64
okano 12:5a33b5d39792 21
okano 1:54e619428ae6 22 #define SOURCE_FILE "/local/bin"
okano 8:b220fadbb3d8 23 #define BAUD_RATE 115200
okano 4:55f1977bd11a 24 //#define BAUD_RATE 57600
okano 8:b220fadbb3d8 25 //#define BAUD_RATE 9600
okano 4:55f1977bd11a 26
okano 8:b220fadbb3d8 27 int error_state = 0;
okano 7:815366f003ee 28
okano 7:815366f003ee 29 int file_size( FILE *fp );
okano 7:815366f003ee 30 void reset_target( int isp_pin_state );
okano 7:815366f003ee 31 int try_and_check( char *command, char *expected_return_str, int mode );
okano 7:815366f003ee 32 int try_and_check2( char *command, char *expected_return_str, int mode );
okano 7:815366f003ee 33 void print_command( char *command );
okano 7:815366f003ee 34 void print_result( int r );
okano 7:815366f003ee 35 char read_byte( void );
okano 7:815366f003ee 36 void erase_sectors( int last_sector );
okano 12:5a33b5d39792 37 int write_uuencoded_data( FILE *fp, int ram_size, int sector_size, unsigned int );
okano 12:5a33b5d39792 38 int write_binary_data( FILE *fp, int ram_size, int sector_size, unsigned int ram_start );
okano 7:815366f003ee 39 void initialize_uue_table( void );
okano 11:8dfc3217d1ca 40 long bin2uue( char *bin, char *str, int size );
okano 12:5a33b5d39792 41 int get_flash_writing_size( int ram_size, unsigned int ram_start );
okano 7:815366f003ee 42 void add_isp_checksum( char *b );
okano 7:815366f003ee 43 void send_RAM_transfer_checksum( int checksum );
okano 7:815366f003ee 44 void put_string( char *s );
okano 12:5a33b5d39792 45 void put_binary( char *b, int size );
okano 7:815366f003ee 46 void get_string( char *s );
okano 7:815366f003ee 47
okano 12:5a33b5d39792 48 #pragma diag_suppress 1293 // surpressing a warning message of "assignment in condition" ;)
okano 12:5a33b5d39792 49
okano 7:815366f003ee 50
okano 7:815366f003ee 51 int main()
okano 7:815366f003ee 52 {
okano 7:815366f003ee 53 FILE *fp;
okano 7:815366f003ee 54 char str_buf0[ STR_BUFF_SIZE ];
okano 7:815366f003ee 55 char str_buf1[ STR_BUFF_SIZE ];
okano 7:815366f003ee 56 int data_size;
okano 7:815366f003ee 57 int last_sector;
okano 7:815366f003ee 58 target_param *tpp;
okano 8:b220fadbb3d8 59
okano 7:815366f003ee 60 printf( "\r\n\r\n\r\nmbed ISP program : programming LPC device from mbed\r\n" );
okano 7:815366f003ee 61
okano 7:815366f003ee 62 target.baud( BAUD_RATE );
okano 8:b220fadbb3d8 63
okano 7:815366f003ee 64 reset_target( ENTER_TO_ISP_MODE );
okano 8:b220fadbb3d8 65
okano 7:815366f003ee 66 try_and_check( "?", "Synchronized", 0 );
okano 8:b220fadbb3d8 67
okano 7:815366f003ee 68 try_and_check2( "Synchronized\r\n", "OK", 0 );
okano 7:815366f003ee 69 try_and_check2( "12000\r\n", "OK", 0 );
okano 7:815366f003ee 70 try_and_check2( "U 23130\r\n", "0", 0 );
okano 7:815366f003ee 71 try_and_check2( "A 0\r\n", "0", 0 );
okano 8:b220fadbb3d8 72
okano 7:815366f003ee 73 try_and_check( "K\r\n", "0", 0 );
okano 7:815366f003ee 74 get_string( str_buf0 );
okano 7:815366f003ee 75 get_string( str_buf1 );
okano 8:b220fadbb3d8 76
okano 7:815366f003ee 77 printf( " result of \"K\" = %s %s\r\n", str_buf0, str_buf1 );
okano 8:b220fadbb3d8 78
okano 7:815366f003ee 79 try_and_check( "J\r\n", "0", 0 );
okano 7:815366f003ee 80 get_string( str_buf0 );
okano 8:b220fadbb3d8 81
okano 7:815366f003ee 82 printf( " result of \"J\" = %s\r\n", str_buf0 );
okano 8:b220fadbb3d8 83
okano 7:815366f003ee 84 tpp = find_target_param( str_buf0 );
okano 8:b220fadbb3d8 85 printf( " target device found : type = \"%s\"\r\n", tpp->type_name );
okano 8:b220fadbb3d8 86 printf( " ID = 0x%08X\r\n", tpp->id );
okano 8:b220fadbb3d8 87 printf( " RAM size = %10d bytes\r\n", tpp->ram_size );
okano 8:b220fadbb3d8 88 printf( " flash size = %10d bytes\r\n", tpp->flash_size );
okano 8:b220fadbb3d8 89
okano 12:5a33b5d39792 90 printf( " opening file: \"%s\"\r\n", SOURCE_FILE );
okano 12:5a33b5d39792 91
okano 12:5a33b5d39792 92 if ( NULL == (fp = fopen( SOURCE_FILE, "rb" )) ) {
okano 12:5a33b5d39792 93 error( "couldn't open source file" );
okano 12:5a33b5d39792 94 return ( 1 );
okano 12:5a33b5d39792 95 }
okano 12:5a33b5d39792 96
okano 12:5a33b5d39792 97 data_size = file_size( fp );
okano 12:5a33b5d39792 98 last_sector = data_size / tpp->sector_size;
okano 12:5a33b5d39792 99
okano 12:5a33b5d39792 100 printf( " data size = %d bytes, it takes %d secotrs in flash area\r\n", data_size, last_sector + 1 );
okano 12:5a33b5d39792 101 printf( " resetting target\r\n" );
okano 12:5a33b5d39792 102
okano 7:815366f003ee 103 erase_sectors( last_sector );
okano 12:5a33b5d39792 104
okano 12:5a33b5d39792 105 if ( tpp->write_type == BINARY )
okano 12:5a33b5d39792 106 write_binary_data( fp, tpp->ram_size, tpp->sector_size, tpp->ram_start_address );
okano 12:5a33b5d39792 107 else // UUENCODE
okano 12:5a33b5d39792 108 write_uuencoded_data( fp, tpp->ram_size, tpp->sector_size, tpp->ram_start_address );
okano 12:5a33b5d39792 109
okano 7:815366f003ee 110 fclose( fp );
okano 8:b220fadbb3d8 111
okano 8:b220fadbb3d8 112 printf( "\r\n %s\r\n\r\n",
okano 8:b220fadbb3d8 113 error_state ?
okano 8:b220fadbb3d8 114 "** The data could not be written :(" :
okano 8:b220fadbb3d8 115 "** The data has been written successflly :)"
okano 8:b220fadbb3d8 116 );
okano 8:b220fadbb3d8 117
okano 7:815366f003ee 118 int i = 0;
okano 8:b220fadbb3d8 119
okano 7:815366f003ee 120 while ( 1 ) {
okano 7:815366f003ee 121 leds = 0x1 << (i++ & 0x3);
okano 7:815366f003ee 122 wait( 0.1 );
okano 7:815366f003ee 123 }
okano 7:815366f003ee 124 }
okano 7:815366f003ee 125
okano 7:815366f003ee 126
okano 7:815366f003ee 127 int file_size( FILE *fp )
okano 7:815366f003ee 128 {
okano 7:815366f003ee 129 int size;
okano 8:b220fadbb3d8 130
okano 7:815366f003ee 131 fseek( fp, 0, SEEK_END ); // seek to end of file
okano 7:815366f003ee 132 size = ftell( fp ); // get current file pointer
okano 7:815366f003ee 133 fseek( fp, 0, SEEK_SET ); // seek back to beginning of file
okano 8:b220fadbb3d8 134
okano 7:815366f003ee 135 return size;
okano 7:815366f003ee 136 }
okano 7:815366f003ee 137
okano 7:815366f003ee 138
okano 7:815366f003ee 139 void reset_target( int isp_pin_state )
okano 7:815366f003ee 140 {
okano 7:815366f003ee 141 reset_pin = 1;
okano 7:815366f003ee 142 isp_pin = 0;
okano 7:815366f003ee 143 wait_ms( 100 );
okano 7:815366f003ee 144 reset_pin = 0;
okano 7:815366f003ee 145 wait_ms( 100 );
okano 7:815366f003ee 146 reset_pin = 1;
okano 7:815366f003ee 147 wait_ms( 100 );
okano 7:815366f003ee 148 }
okano 7:815366f003ee 149
okano 7:815366f003ee 150
okano 7:815366f003ee 151 int try_and_check( char *command, char *expected_return_str, int mode )
okano 7:815366f003ee 152 {
okano 7:815366f003ee 153 char rtn_str[ STR_BUFF_SIZE ];
okano 8:b220fadbb3d8 154 int result = 1;
okano 8:b220fadbb3d8 155
okano 7:815366f003ee 156 print_command( command );
okano 7:815366f003ee 157 put_string( command );
okano 8:b220fadbb3d8 158
okano 7:815366f003ee 159 get_string( rtn_str );
okano 7:815366f003ee 160 print_result( result = strcmp( expected_return_str, rtn_str ) );
okano 8:b220fadbb3d8 161
okano 8:b220fadbb3d8 162 if ( result && !mode )
okano 8:b220fadbb3d8 163 error( "command failed\r\n" );
okano 8:b220fadbb3d8 164
okano 8:b220fadbb3d8 165 error_state |= result;
okano 8:b220fadbb3d8 166
okano 7:815366f003ee 167 return ( result );
okano 7:815366f003ee 168 }
okano 7:815366f003ee 169
okano 7:815366f003ee 170
okano 7:815366f003ee 171 int try_and_check2( char *command, char *expected_return_str, int mode )
okano 7:815366f003ee 172 {
okano 7:815366f003ee 173 char rtn_str[ STR_BUFF_SIZE ];
okano 8:b220fadbb3d8 174 int result = 1;
okano 8:b220fadbb3d8 175
okano 7:815366f003ee 176 print_command( command );
okano 7:815366f003ee 177 put_string( command );
okano 8:b220fadbb3d8 178
okano 7:815366f003ee 179 get_string( rtn_str ); // just readout echoback
okano 7:815366f003ee 180 get_string( rtn_str );
okano 7:815366f003ee 181 print_result( result = strcmp( expected_return_str, rtn_str ) );
okano 8:b220fadbb3d8 182
okano 8:b220fadbb3d8 183 if ( result && !mode )
okano 8:b220fadbb3d8 184 error( "command failed\r\n" );
okano 8:b220fadbb3d8 185
okano 8:b220fadbb3d8 186 error_state |= result;
okano 8:b220fadbb3d8 187
okano 7:815366f003ee 188 return ( result );
okano 7:815366f003ee 189 }
okano 7:815366f003ee 190
okano 7:815366f003ee 191
okano 7:815366f003ee 192 void print_command( char *command )
okano 7:815366f003ee 193 {
okano 7:815366f003ee 194 char s[ STR_BUFF_SIZE ];
okano 7:815366f003ee 195 char *pos;
okano 8:b220fadbb3d8 196
okano 7:815366f003ee 197 strcpy( s, command );
okano 8:b220fadbb3d8 198
okano 7:815366f003ee 199 if ( pos = strchr( s, '\r' ) )
okano 7:815366f003ee 200 *pos = '\0';
okano 8:b220fadbb3d8 201
okano 7:815366f003ee 202 if ( pos = strchr( s, '\n' ) )
okano 7:815366f003ee 203 *pos = '\0';
okano 8:b220fadbb3d8 204
okano 7:815366f003ee 205 printf( " command-\"%s\" : ", s );
okano 7:815366f003ee 206 }
okano 7:815366f003ee 207
okano 7:815366f003ee 208
okano 7:815366f003ee 209 void print_result( int r )
okano 7:815366f003ee 210 {
okano 7:815366f003ee 211 printf( "%s\r\n", r ? "Fail" : "Pass" );
okano 7:815366f003ee 212 }
okano 7:815366f003ee 213
okano 7:815366f003ee 214
okano 7:815366f003ee 215 char read_byte( void )
okano 7:815366f003ee 216 {
okano 7:815366f003ee 217 while ( !target.readable() )
okano 7:815366f003ee 218 ;
okano 8:b220fadbb3d8 219
okano 7:815366f003ee 220 return ( target.getc() );
okano 7:815366f003ee 221 }
okano 7:815366f003ee 222
okano 7:815366f003ee 223
okano 7:815366f003ee 224 void erase_sectors( int last_sector )
okano 7:815366f003ee 225 {
okano 7:815366f003ee 226 char command_str[ STR_BUFF_SIZE ];
okano 8:b220fadbb3d8 227
okano 7:815366f003ee 228 sprintf( command_str, "P 0 %d\r\n", last_sector );
okano 7:815366f003ee 229 try_and_check( command_str, "0", 0 );
okano 8:b220fadbb3d8 230
okano 7:815366f003ee 231 *(command_str) = 'E';
okano 7:815366f003ee 232 try_and_check( command_str, "0", 0 );
okano 7:815366f003ee 233 }
okano 7:815366f003ee 234
okano 12:5a33b5d39792 235 #define BYTES_PER_LINE 45
okano 12:5a33b5d39792 236 char uue_table[ 64 ];
okano 7:815366f003ee 237
okano 12:5a33b5d39792 238 int write_uuencoded_data( FILE *fp, int ram_size, int sector_size, unsigned int ram_start )
okano 7:815366f003ee 239 {
okano 7:815366f003ee 240 char command_str[ STR_BUFF_SIZE ];
okano 7:815366f003ee 241 long checksum = 0;
okano 7:815366f003ee 242 int total_size = 0;
okano 7:815366f003ee 243 int size;
okano 8:b220fadbb3d8 244
okano 7:815366f003ee 245 int flash_writing_size;
okano 7:815366f003ee 246 int lines_per_transfer;
okano 7:815366f003ee 247 int transfer_size;
okano 8:b220fadbb3d8 248
okano 12:5a33b5d39792 249 char *b;
okano 12:5a33b5d39792 250
okano 7:815366f003ee 251 initialize_uue_table();
okano 8:b220fadbb3d8 252
okano 12:5a33b5d39792 253 flash_writing_size = get_flash_writing_size( ram_size, ram_start );
okano 11:8dfc3217d1ca 254 lines_per_transfer = ((flash_writing_size / BYTES_PER_LINE) + 1);
okano 11:8dfc3217d1ca 255 transfer_size = (((flash_writing_size + 11) / 12) * 12);
okano 8:b220fadbb3d8 256
okano 7:815366f003ee 257 // char b[ transfer_size ]; // this can be done in mbed-compiler. but I should do it in common way
okano 8:b220fadbb3d8 258
okano 7:815366f003ee 259 if ( NULL == (b = (char *)malloc( transfer_size * sizeof( char ) )) )
okano 7:815366f003ee 260 error( "malloc error happened\r\n" );
okano 8:b220fadbb3d8 261
okano 7:815366f003ee 262 for ( int i = flash_writing_size; i < transfer_size; i++ )
okano 7:815366f003ee 263 b[ i ] = 0; // this is not neccesary but just stuffing stuffing bytes
okano 8:b220fadbb3d8 264
okano 7:815366f003ee 265 while ( size = fread( b, sizeof( char ), flash_writing_size, fp ) ) {
okano 8:b220fadbb3d8 266
okano 7:815366f003ee 267 if ( !total_size ) {
okano 7:815366f003ee 268 // overwriting 4 bytes data for address=0x1C
okano 7:815366f003ee 269 // there is a slot for checksum that is checked in (target's) boot process
okano 7:815366f003ee 270 add_isp_checksum( b );
okano 7:815366f003ee 271 }
okano 8:b220fadbb3d8 272
okano 12:5a33b5d39792 273 sprintf( command_str, "W %ld %ld\r\n", ram_start, transfer_size );
okano 7:815366f003ee 274 try_and_check( command_str, "0", 0 );
okano 8:b220fadbb3d8 275
okano 7:815366f003ee 276 for ( int i = 0; i < lines_per_transfer; i++ ) {
okano 12:5a33b5d39792 277
okano 11:8dfc3217d1ca 278 checksum += bin2uue( b + (i * BYTES_PER_LINE), command_str, i == (lines_per_transfer - 1) ? (transfer_size % BYTES_PER_LINE) : BYTES_PER_LINE );
okano 8:b220fadbb3d8 279
okano 12:5a33b5d39792 280 // printf( " data -- %02d %s\r", i, command_str );
okano 8:b220fadbb3d8 281
okano 7:815366f003ee 282 put_string( command_str );
okano 8:b220fadbb3d8 283
okano 7:815366f003ee 284 if ( !((i + 1) % 20) ) {
okano 7:815366f003ee 285 send_RAM_transfer_checksum( checksum );
okano 7:815366f003ee 286 checksum = 0;
okano 7:815366f003ee 287 }
okano 7:815366f003ee 288 }
okano 8:b220fadbb3d8 289
okano 7:815366f003ee 290 send_RAM_transfer_checksum( checksum );
okano 7:815366f003ee 291 checksum = 0;
okano 8:b220fadbb3d8 292
okano 12:5a33b5d39792 293 sprintf( command_str, "P %d %d\r\n", total_size / sector_size, total_size / sector_size );
okano 7:815366f003ee 294 try_and_check( command_str, "0", 0 );
okano 8:b220fadbb3d8 295
okano 12:5a33b5d39792 296 sprintf( command_str, "C %d %d %d\r\n", total_size, ram_start, flash_writing_size );
okano 7:815366f003ee 297 try_and_check( command_str, "0", 0 );
okano 8:b220fadbb3d8 298
okano 7:815366f003ee 299 total_size += size;
okano 7:815366f003ee 300 }
okano 8:b220fadbb3d8 301
okano 7:815366f003ee 302 try_and_check( "G 0 T\r\n", "0", 0 );
okano 7:815366f003ee 303 free( b );
okano 8:b220fadbb3d8 304
okano 12:5a33b5d39792 305 return ( total_size );
okano 7:815366f003ee 306 }
okano 7:815366f003ee 307
okano 7:815366f003ee 308
okano 12:5a33b5d39792 309 int write_binary_data( FILE *fp, int ram_size, int sector_size, unsigned int ram_start )
okano 12:5a33b5d39792 310 {
okano 12:5a33b5d39792 311 char command_str[ STR_BUFF_SIZE ];
okano 12:5a33b5d39792 312 int total_size = 0;
okano 12:5a33b5d39792 313 int size;
okano 12:5a33b5d39792 314 int flash_writing_size;
okano 12:5a33b5d39792 315 char *b;
okano 12:5a33b5d39792 316
okano 12:5a33b5d39792 317 flash_writing_size = 256;
okano 12:5a33b5d39792 318
okano 12:5a33b5d39792 319 if ( NULL == (b = (char *)malloc( flash_writing_size * sizeof( char ) )) )
okano 12:5a33b5d39792 320 error( "malloc error happened\r\n" );
okano 12:5a33b5d39792 321
okano 12:5a33b5d39792 322 while ( size = fread( b, sizeof( char ), flash_writing_size, fp ) ) {
okano 12:5a33b5d39792 323
okano 12:5a33b5d39792 324 if ( !total_size ) {
okano 12:5a33b5d39792 325 // overwriting 4 bytes data for address=0x1C
okano 12:5a33b5d39792 326 // there is a slot for checksum that is checked in (target's) boot process
okano 12:5a33b5d39792 327 add_isp_checksum( b );
okano 12:5a33b5d39792 328 }
okano 12:5a33b5d39792 329
okano 12:5a33b5d39792 330 sprintf( command_str, "W %ld %ld\r\n", ram_start, flash_writing_size );
okano 12:5a33b5d39792 331 try_and_check( command_str, "0", 0 );
okano 12:5a33b5d39792 332
okano 12:5a33b5d39792 333 put_binary( b, flash_writing_size );
okano 12:5a33b5d39792 334 put_string( "\r\n" );
okano 12:5a33b5d39792 335
okano 12:5a33b5d39792 336 sprintf( command_str, "P %d %d\r\n", total_size / sector_size, total_size / sector_size );
okano 12:5a33b5d39792 337 try_and_check( command_str, "0", 0 );
okano 12:5a33b5d39792 338
okano 12:5a33b5d39792 339 sprintf( command_str, "C %d %d %d\r\n", total_size, ram_start, flash_writing_size );
okano 12:5a33b5d39792 340 try_and_check( command_str, "0", 0 );
okano 12:5a33b5d39792 341
okano 12:5a33b5d39792 342 total_size += size;
okano 12:5a33b5d39792 343 printf( " total %d bytes transferred\r", total_size );
okano 12:5a33b5d39792 344
okano 12:5a33b5d39792 345 }
okano 12:5a33b5d39792 346
okano 12:5a33b5d39792 347 free( b );
okano 12:5a33b5d39792 348
okano 12:5a33b5d39792 349 return ( total_size );
okano 12:5a33b5d39792 350 }
okano 12:5a33b5d39792 351
okano 7:815366f003ee 352 void initialize_uue_table( void )
okano 7:815366f003ee 353 {
okano 7:815366f003ee 354 int i;
okano 8:b220fadbb3d8 355
okano 7:815366f003ee 356 uue_table[0] = 0x60; // 0x20 is translated to 0x60 !
okano 8:b220fadbb3d8 357
okano 7:815366f003ee 358 for (i = 1; i < 64; i++) {
okano 7:815366f003ee 359 uue_table[i] = (char)(0x20 + i);
okano 7:815366f003ee 360 }
okano 7:815366f003ee 361 }
okano 7:815366f003ee 362
okano 7:815366f003ee 363
okano 11:8dfc3217d1ca 364 long bin2uue( char *bin, char *str, int size )
okano 7:815366f003ee 365 {
okano 7:815366f003ee 366 unsigned long v;
okano 7:815366f003ee 367 long checksum = 0;
okano 7:815366f003ee 368 int strpos = 0;
okano 8:b220fadbb3d8 369
okano 11:8dfc3217d1ca 370 *(str + strpos++) = ' ' + size;
okano 8:b220fadbb3d8 371
okano 11:8dfc3217d1ca 372 for ( int i = 0; i < size; i += 3 ) {
okano 7:815366f003ee 373 checksum += *(bin + i + 0) + *(bin + i + 1) + *(bin + i + 2);
okano 7:815366f003ee 374 v = (*(bin + i + 0) << 16) | (*(bin + i + 1) << 8) | (*(bin + i + 2) << 0);
okano 7:815366f003ee 375 *(str + strpos++) = uue_table[ (v >> 18) & 0x3F ];
okano 7:815366f003ee 376 *(str + strpos++) = uue_table[ (v >> 12) & 0x3F ];
okano 7:815366f003ee 377 *(str + strpos++) = uue_table[ (v >> 6) & 0x3F ];
okano 7:815366f003ee 378 *(str + strpos++) = uue_table[ (v >> 0) & 0x3F ];
okano 7:815366f003ee 379 }
okano 7:815366f003ee 380 *(str + strpos++) = '\n';
okano 7:815366f003ee 381 *(str + strpos++) = '\0';
okano 8:b220fadbb3d8 382
okano 7:815366f003ee 383 return checksum;
okano 7:815366f003ee 384 }
okano 6:0ae6fe8c8512 385
okano 6:0ae6fe8c8512 386
okano 12:5a33b5d39792 387 int get_flash_writing_size( int ram_size, unsigned int ram_start )
okano 6:0ae6fe8c8512 388 {
okano 6:0ae6fe8c8512 389 int flash_writing_size[] = {
okano 6:0ae6fe8c8512 390 4096,
okano 6:0ae6fe8c8512 391 1024,
okano 6:0ae6fe8c8512 392 512,
okano 6:0ae6fe8c8512 393 256
okano 6:0ae6fe8c8512 394 };
okano 6:0ae6fe8c8512 395 int available_size;
okano 6:0ae6fe8c8512 396 int i;
okano 8:b220fadbb3d8 397
okano 12:5a33b5d39792 398 available_size = ram_size - (ram_start & 0xFFFF);
okano 8:b220fadbb3d8 399
okano 6:0ae6fe8c8512 400 for ( i = 0; i < sizeof( flash_writing_size ) / sizeof( int ); i++ ) {
okano 6:0ae6fe8c8512 401 if ( flash_writing_size[ i ] < available_size )
okano 6:0ae6fe8c8512 402 break;
okano 6:0ae6fe8c8512 403 }
okano 8:b220fadbb3d8 404
okano 6:0ae6fe8c8512 405 return ( flash_writing_size[ i ] );
okano 6:0ae6fe8c8512 406 }
okano 4:55f1977bd11a 407
okano 4:55f1977bd11a 408
okano 1:54e619428ae6 409 void add_isp_checksum( char *b )
okano 1:54e619428ae6 410 {
okano 1:54e619428ae6 411 // see http://www.lpcware.com/content/nxpfile/lpc177x8x-checksum-insertion-program
okano 8:b220fadbb3d8 412
okano 1:54e619428ae6 413 unsigned int *p;
okano 1:54e619428ae6 414 unsigned int cksum = 0;
okano 8:b220fadbb3d8 415
okano 1:54e619428ae6 416 p = (unsigned int *)b;
okano 8:b220fadbb3d8 417
okano 1:54e619428ae6 418 for ( int i = 0; i < 7; i++ ) {
okano 1:54e619428ae6 419 cksum += *p++;
okano 1:54e619428ae6 420 }
okano 8:b220fadbb3d8 421
okano 1:54e619428ae6 422 printf( " -- value at checksum slot : 0x%08X\r\n", *p );
okano 8:b220fadbb3d8 423
okano 1:54e619428ae6 424 *p = 0xFFFFFFFF - cksum + 1;
okano 1:54e619428ae6 425 printf( " -- calculated checksum : 0x%08X\r\n", *p );
okano 8:b220fadbb3d8 426
okano 1:54e619428ae6 427 printf( " new checksum will be used to program flash\r\n" );
okano 1:54e619428ae6 428 }
okano 1:54e619428ae6 429
okano 1:54e619428ae6 430
okano 4:55f1977bd11a 431 void send_RAM_transfer_checksum( int checksum )
okano 4:55f1977bd11a 432 {
okano 4:55f1977bd11a 433 char command[ 16 ];
okano 8:b220fadbb3d8 434
okano 4:55f1977bd11a 435 sprintf( command, "%d\n", checksum );
okano 4:55f1977bd11a 436 try_and_check( command, "OK", 0 );
okano 4:55f1977bd11a 437 }
okano 4:55f1977bd11a 438
okano 0:6baefda2e511 439
okano 0:6baefda2e511 440 void put_string( char *s )
okano 0:6baefda2e511 441 {
okano 2:8d75eb0ecd20 442 char c;
okano 2:8d75eb0ecd20 443 static int i = 0;
okano 8:b220fadbb3d8 444
okano 3:3c380e643e74 445 while ( c = *s++ ) {
okano 0:6baefda2e511 446 target.putc( c );
okano 2:8d75eb0ecd20 447 leds = i++ & 0x1;
okano 2:8d75eb0ecd20 448 }
okano 0:6baefda2e511 449 }
okano 0:6baefda2e511 450
okano 7:815366f003ee 451
okano 12:5a33b5d39792 452 void put_binary( char *b, int size )
okano 12:5a33b5d39792 453 {
okano 12:5a33b5d39792 454 for ( int i = 0; i < size; i++ )
okano 12:5a33b5d39792 455 target.putc( *b++ );
okano 12:5a33b5d39792 456 }
okano 12:5a33b5d39792 457
okano 12:5a33b5d39792 458
okano 9:ca4c9a2ac8e1 459 Timeout timeout;
okano 9:ca4c9a2ac8e1 460
okano 9:ca4c9a2ac8e1 461 int timeout_flag = 0;
okano 9:ca4c9a2ac8e1 462
okano 9:ca4c9a2ac8e1 463 void set_flag()
okano 9:ca4c9a2ac8e1 464 {
okano 9:ca4c9a2ac8e1 465 timeout_flag = 1;
okano 9:ca4c9a2ac8e1 466 }
okano 9:ca4c9a2ac8e1 467
okano 9:ca4c9a2ac8e1 468
okano 0:6baefda2e511 469 void get_string( char *s )
okano 0:6baefda2e511 470 {
okano 0:6baefda2e511 471 int i = 0;
okano 0:6baefda2e511 472 char c = 0;
okano 9:ca4c9a2ac8e1 473 timeout_flag = 0;
okano 9:ca4c9a2ac8e1 474
okano 9:ca4c9a2ac8e1 475 timeout.attach( &set_flag, 1 );
okano 8:b220fadbb3d8 476
okano 0:6baefda2e511 477 do {
okano 0:6baefda2e511 478 do {
okano 0:6baefda2e511 479 if ( target.readable() ) {
okano 0:6baefda2e511 480 c = target.getc();
okano 8:b220fadbb3d8 481
okano 0:6baefda2e511 482 if ( ( c == '\n') || (c == '\r') )
okano 0:6baefda2e511 483 break;
okano 8:b220fadbb3d8 484
okano 0:6baefda2e511 485 *s++ = c;
okano 0:6baefda2e511 486 i++;
okano 0:6baefda2e511 487 }
okano 9:ca4c9a2ac8e1 488
okano 9:ca4c9a2ac8e1 489 if ( timeout_flag )
okano 9:ca4c9a2ac8e1 490 return;
okano 0:6baefda2e511 491 } while ( 1 );
okano 0:6baefda2e511 492 } while ( !i );
okano 8:b220fadbb3d8 493
okano 0:6baefda2e511 494 *s = '\0';
okano 0:6baefda2e511 495 }
okano 9:ca4c9a2ac8e1 496