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@7:815366f003ee, 2013-08-25 (annotated)

Committer:
okano
Date:
Sun Aug 25 03:30:28 2013 +0000
Revision:
7:815366f003ee
Parent:
6:0ae6fe8c8512
Child:
8:b220fadbb3d8
functions are replaced

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okano 5:ff30f5b58617 1 #include "mbed.h"
okano 5:ff30f5b58617 2 #include "target_table.h"
okano 0:6baefda2e511 3
okano 2:8d75eb0ecd20 4 BusOut leds( LED4, LED3, LED2, LED1 );
okano 2:8d75eb0ecd20 5 DigitalOut reset_pin( p26 );
okano 2:8d75eb0ecd20 6 DigitalOut isp_pin( p25 );
okano 2:8d75eb0ecd20 7 Serial target ( p28, p27 );
okano 2:8d75eb0ecd20 8 LocalFileSystem local( "local" );
okano 0:6baefda2e511 9
okano 1:54e619428ae6 10 #define SOURCE_FILE "/local/bin"
okano 4:55f1977bd11a 11 //#define BAUD_RATE 9600
okano 4:55f1977bd11a 12 //#define BAUD_RATE 57600
okano 4:55f1977bd11a 13 #define BAUD_RATE 115200
okano 4:55f1977bd11a 14
okano 1:54e619428ae6 15 #define STR_BUFF_SIZE 64
okano 6:0ae6fe8c8512 16 #define RAM_START_ADDRESS 0x10000000
okano 6:0ae6fe8c8512 17 #define RAM_WRITE_OFFSET 0x200
okano 6:0ae6fe8c8512 18 #define RAM_WRITE_START (RAM_START_ADDRESS + RAM_WRITE_OFFSET)
okano 1:54e619428ae6 19 #define SECTOR_SIZE 4096
okano 0:6baefda2e511 20
okano 6:0ae6fe8c8512 21 //#define FLASH_WRITING_SIZE 1024 // This value should be 256, 512, 1024 or 4096
okano 6:0ae6fe8c8512 22 #define FLASH_WRITING_SIZE 512 // This value should be 256, 512, 1024 or 4096
okano 6:0ae6fe8c8512 23 #define BYTES_PER_LINE 45
okano 6:0ae6fe8c8512 24 #define LINES_PER_TRANSFER (((FLASH_WRITING_SIZE / BYTES_PER_LINE) + 3) & ~0x3)
okano 6:0ae6fe8c8512 25 #define TRANSFER_SIZE (LINES_PER_TRANSFER * BYTES_PER_LINE)
okano 6:0ae6fe8c8512 26
okano 7:815366f003ee 27 #pragma diag_suppress 1293 // surpressing a warning message of "assignment in condition"
okano 7:815366f003ee 28
okano 7:815366f003ee 29 char uue_table[ 64 ];
okano 7:815366f003ee 30
okano 7:815366f003ee 31 enum {
okano 7:815366f003ee 32 ENTER_TO_ISP_MODE,
okano 7:815366f003ee 33 NO_ISP_MODE
okano 7:815366f003ee 34 };
okano 7:815366f003ee 35
okano 7:815366f003ee 36 int file_size( FILE *fp );
okano 7:815366f003ee 37 void reset_target( int isp_pin_state );
okano 7:815366f003ee 38 int try_and_check( char *command, char *expected_return_str, int mode );
okano 7:815366f003ee 39 int try_and_check2( char *command, char *expected_return_str, int mode );
okano 7:815366f003ee 40 void print_command( char *command );
okano 7:815366f003ee 41 void print_result( int r );
okano 7:815366f003ee 42 char read_byte( void );
okano 7:815366f003ee 43 void erase_sectors( int last_sector );
okano 7:815366f003ee 44 int write_binary_data( FILE *fp, int ram_size );
okano 7:815366f003ee 45 void initialize_uue_table( void );
okano 7:815366f003ee 46 long bin2uue( char *bin, char *str );
okano 7:815366f003ee 47 int get_flash_writing_size( int ram_size );
okano 7:815366f003ee 48 void add_isp_checksum( char *b );
okano 7:815366f003ee 49 void send_RAM_transfer_checksum( int checksum );
okano 7:815366f003ee 50 void put_string( char *s );
okano 7:815366f003ee 51 void get_string( char *s );
okano 7:815366f003ee 52
okano 7:815366f003ee 53
okano 7:815366f003ee 54 int main()
okano 7:815366f003ee 55 {
okano 7:815366f003ee 56 FILE *fp;
okano 7:815366f003ee 57 char str_buf0[ STR_BUFF_SIZE ];
okano 7:815366f003ee 58 char str_buf1[ STR_BUFF_SIZE ];
okano 7:815366f003ee 59 int data_size;
okano 7:815366f003ee 60 int last_sector;
okano 7:815366f003ee 61 target_param *tpp;
okano 7:815366f003ee 62
okano 7:815366f003ee 63 printf( "\r\n\r\n\r\nmbed ISP program : programming LPC device from mbed\r\n" );
okano 7:815366f003ee 64
okano 7:815366f003ee 65 target.baud( BAUD_RATE );
okano 7:815366f003ee 66
okano 7:815366f003ee 67 printf( " opening file: \"%s\"\r\n", SOURCE_FILE );
okano 7:815366f003ee 68
okano 7:815366f003ee 69 if ( NULL == (fp = fopen( SOURCE_FILE, "rb" )) ) {
okano 7:815366f003ee 70 error( "couldn't open source file" );
okano 7:815366f003ee 71 return ( 1 );
okano 7:815366f003ee 72 }
okano 7:815366f003ee 73
okano 7:815366f003ee 74 data_size = file_size( fp );
okano 7:815366f003ee 75 last_sector = data_size / SECTOR_SIZE;
okano 7:815366f003ee 76
okano 7:815366f003ee 77 printf( " data size = %d bytes, it takes %d secotrs in flash area\r\n", data_size, last_sector + 1 );
okano 7:815366f003ee 78 printf( " resetting target\r\n" );
okano 7:815366f003ee 79
okano 7:815366f003ee 80 reset_target( ENTER_TO_ISP_MODE );
okano 7:815366f003ee 81
okano 7:815366f003ee 82 try_and_check( "?", "Synchronized", 0 );
okano 7:815366f003ee 83
okano 7:815366f003ee 84 try_and_check2( "Synchronized\r\n", "OK", 0 );
okano 7:815366f003ee 85 try_and_check2( "12000\r\n", "OK", 0 );
okano 7:815366f003ee 86 try_and_check2( "U 23130\r\n", "0", 0 );
okano 7:815366f003ee 87 try_and_check2( "A 0\r\n", "0", 0 );
okano 7:815366f003ee 88
okano 7:815366f003ee 89 try_and_check( "K\r\n", "0", 0 );
okano 7:815366f003ee 90 get_string( str_buf0 );
okano 7:815366f003ee 91 get_string( str_buf1 );
okano 7:815366f003ee 92
okano 7:815366f003ee 93 printf( " result of \"K\" = %s %s\r\n", str_buf0, str_buf1 );
okano 7:815366f003ee 94
okano 7:815366f003ee 95 try_and_check( "J\r\n", "0", 0 );
okano 7:815366f003ee 96 get_string( str_buf0 );
okano 7:815366f003ee 97
okano 7:815366f003ee 98 printf( " result of \"J\" = %s\r\n", str_buf0 );
okano 7:815366f003ee 99
okano 7:815366f003ee 100 tpp = find_target_param( str_buf0 );
okano 7:815366f003ee 101 printf( "target device found : type = \"%s\"\r\n", tpp->type_name );
okano 7:815366f003ee 102 printf( " ID = 0x%08X\r\n", tpp->id );
okano 7:815366f003ee 103 printf( " RAM size = %10d bytes\r\n", tpp->ram_size );
okano 7:815366f003ee 104 printf( " flash size = %10d bytes\r\n", tpp->flash_size );
okano 7:815366f003ee 105
okano 7:815366f003ee 106 erase_sectors( last_sector );
okano 7:815366f003ee 107 write_binary_data( fp, tpp->ram_size );
okano 7:815366f003ee 108
okano 7:815366f003ee 109 fclose( fp );
okano 7:815366f003ee 110
okano 7:815366f003ee 111 int i = 0;
okano 7:815366f003ee 112
okano 7:815366f003ee 113 while ( 1 ) {
okano 7:815366f003ee 114 leds = 0x1 << (i++ & 0x3);
okano 7:815366f003ee 115 wait( 0.1 );
okano 7:815366f003ee 116 }
okano 7:815366f003ee 117 }
okano 7:815366f003ee 118
okano 7:815366f003ee 119
okano 7:815366f003ee 120 int file_size( FILE *fp )
okano 7:815366f003ee 121 {
okano 7:815366f003ee 122 int size;
okano 7:815366f003ee 123
okano 7:815366f003ee 124 fseek( fp, 0, SEEK_END ); // seek to end of file
okano 7:815366f003ee 125 size = ftell( fp ); // get current file pointer
okano 7:815366f003ee 126 fseek( fp, 0, SEEK_SET ); // seek back to beginning of file
okano 7:815366f003ee 127
okano 7:815366f003ee 128 return size;
okano 7:815366f003ee 129 }
okano 7:815366f003ee 130
okano 7:815366f003ee 131
okano 7:815366f003ee 132 void reset_target( int isp_pin_state )
okano 7:815366f003ee 133 {
okano 7:815366f003ee 134 reset_pin = 1;
okano 7:815366f003ee 135 isp_pin = 0;
okano 7:815366f003ee 136 wait_ms( 100 );
okano 7:815366f003ee 137 reset_pin = 0;
okano 7:815366f003ee 138 wait_ms( 100 );
okano 7:815366f003ee 139 reset_pin = 1;
okano 7:815366f003ee 140 wait_ms( 100 );
okano 7:815366f003ee 141 }
okano 7:815366f003ee 142
okano 7:815366f003ee 143
okano 7:815366f003ee 144 int try_and_check( char *command, char *expected_return_str, int mode )
okano 7:815366f003ee 145 {
okano 7:815366f003ee 146 char rtn_str[ STR_BUFF_SIZE ];
okano 7:815366f003ee 147 int result;
okano 7:815366f003ee 148
okano 7:815366f003ee 149 print_command( command );
okano 7:815366f003ee 150 put_string( command );
okano 7:815366f003ee 151
okano 7:815366f003ee 152 get_string( rtn_str );
okano 7:815366f003ee 153 print_result( result = strcmp( expected_return_str, rtn_str ) );
okano 7:815366f003ee 154
okano 7:815366f003ee 155 return ( result );
okano 7:815366f003ee 156 }
okano 7:815366f003ee 157
okano 7:815366f003ee 158
okano 7:815366f003ee 159 int try_and_check2( char *command, char *expected_return_str, int mode )
okano 7:815366f003ee 160 {
okano 7:815366f003ee 161 char rtn_str[ STR_BUFF_SIZE ];
okano 7:815366f003ee 162 int result;
okano 7:815366f003ee 163 print_command( command );
okano 7:815366f003ee 164
okano 7:815366f003ee 165 put_string( command );
okano 7:815366f003ee 166
okano 7:815366f003ee 167 get_string( rtn_str ); // just readout echoback
okano 7:815366f003ee 168 get_string( rtn_str );
okano 7:815366f003ee 169 print_result( result = strcmp( expected_return_str, rtn_str ) );
okano 7:815366f003ee 170
okano 7:815366f003ee 171 return ( result );
okano 7:815366f003ee 172 }
okano 7:815366f003ee 173
okano 7:815366f003ee 174
okano 7:815366f003ee 175 void print_command( char *command )
okano 7:815366f003ee 176 {
okano 7:815366f003ee 177 char s[ STR_BUFF_SIZE ];
okano 7:815366f003ee 178 char *pos;
okano 7:815366f003ee 179
okano 7:815366f003ee 180 strcpy( s, command );
okano 7:815366f003ee 181
okano 7:815366f003ee 182 if ( pos = strchr( s, '\r' ) )
okano 7:815366f003ee 183 *pos = '\0';
okano 7:815366f003ee 184
okano 7:815366f003ee 185 if ( pos = strchr( s, '\n' ) )
okano 7:815366f003ee 186 *pos = '\0';
okano 7:815366f003ee 187
okano 7:815366f003ee 188 printf( " command-\"%s\" : ", s );
okano 7:815366f003ee 189 }
okano 7:815366f003ee 190
okano 7:815366f003ee 191
okano 7:815366f003ee 192 void print_result( int r )
okano 7:815366f003ee 193 {
okano 7:815366f003ee 194 printf( "%s\r\n", r ? "Fail" : "Pass" );
okano 7:815366f003ee 195 }
okano 7:815366f003ee 196
okano 7:815366f003ee 197
okano 7:815366f003ee 198 char read_byte( void )
okano 7:815366f003ee 199 {
okano 7:815366f003ee 200 while ( !target.readable() )
okano 7:815366f003ee 201 ;
okano 7:815366f003ee 202
okano 7:815366f003ee 203 return ( target.getc() );
okano 7:815366f003ee 204 }
okano 7:815366f003ee 205
okano 7:815366f003ee 206
okano 7:815366f003ee 207 void erase_sectors( int last_sector )
okano 7:815366f003ee 208 {
okano 7:815366f003ee 209 char command_str[ STR_BUFF_SIZE ];
okano 7:815366f003ee 210
okano 7:815366f003ee 211 sprintf( command_str, "P 0 %d\r\n", last_sector );
okano 7:815366f003ee 212 try_and_check( command_str, "0", 0 );
okano 7:815366f003ee 213
okano 7:815366f003ee 214 *(command_str) = 'E';
okano 7:815366f003ee 215 try_and_check( command_str, "0", 0 );
okano 7:815366f003ee 216 }
okano 7:815366f003ee 217
okano 7:815366f003ee 218
okano 7:815366f003ee 219 int write_binary_data( FILE *fp, int ram_size )
okano 7:815366f003ee 220 {
okano 7:815366f003ee 221 char command_str[ STR_BUFF_SIZE ];
okano 7:815366f003ee 222 long checksum = 0;
okano 7:815366f003ee 223 int transfer_count = 0;
okano 7:815366f003ee 224 int total_size = 0;
okano 7:815366f003ee 225 int size;
okano 7:815366f003ee 226
okano 7:815366f003ee 227 int flash_writing_size;
okano 7:815366f003ee 228 int lines_per_transfer;
okano 7:815366f003ee 229 int transfer_size;
okano 7:815366f003ee 230
okano 7:815366f003ee 231 initialize_uue_table();
okano 7:815366f003ee 232
okano 7:815366f003ee 233 flash_writing_size = get_flash_writing_size( ram_size );
okano 7:815366f003ee 234 lines_per_transfer=(((flash_writing_size / BYTES_PER_LINE) + 3) & ~0x3);
okano 7:815366f003ee 235 transfer_size=(lines_per_transfer * BYTES_PER_LINE);
okano 7:815366f003ee 236
okano 7:815366f003ee 237 // char b[ transfer_size ]; // this can be done in mbed-compiler. but I should do it in common way
okano 7:815366f003ee 238
okano 7:815366f003ee 239 char *b;
okano 7:815366f003ee 240
okano 7:815366f003ee 241 if ( NULL == (b = (char *)malloc( transfer_size * sizeof( char ) )) )
okano 7:815366f003ee 242 error( "malloc error happened\r\n" );
okano 7:815366f003ee 243
okano 7:815366f003ee 244 for ( int i = flash_writing_size; i < transfer_size; i++ )
okano 7:815366f003ee 245 b[ i ] = 0; // this is not neccesary but just stuffing stuffing bytes
okano 7:815366f003ee 246
okano 7:815366f003ee 247 while ( size = fread( b, sizeof( char ), flash_writing_size, fp ) ) {
okano 7:815366f003ee 248
okano 7:815366f003ee 249 if ( !total_size ) {
okano 7:815366f003ee 250 // overwriting 4 bytes data for address=0x1C
okano 7:815366f003ee 251 // there is a slot for checksum that is checked in (target's) boot process
okano 7:815366f003ee 252 add_isp_checksum( b );
okano 7:815366f003ee 253 }
okano 7:815366f003ee 254
okano 7:815366f003ee 255 sprintf( command_str, "W %ld %ld\r\n", RAM_WRITE_START, transfer_size );
okano 7:815366f003ee 256 try_and_check( command_str, "0", 0 );
okano 7:815366f003ee 257
okano 7:815366f003ee 258 for ( int i = 0; i < lines_per_transfer; i++ ) {
okano 7:815366f003ee 259 checksum += bin2uue( b + (i * BYTES_PER_LINE), command_str );
okano 7:815366f003ee 260
okano 7:815366f003ee 261 printf( "%02d %s\r", i, command_str );
okano 7:815366f003ee 262
okano 7:815366f003ee 263 put_string( command_str );
okano 7:815366f003ee 264
okano 7:815366f003ee 265 if ( !((i + 1) % 20) ) {
okano 7:815366f003ee 266 send_RAM_transfer_checksum( checksum );
okano 7:815366f003ee 267 checksum = 0;
okano 7:815366f003ee 268 }
okano 7:815366f003ee 269 }
okano 7:815366f003ee 270
okano 7:815366f003ee 271 send_RAM_transfer_checksum( checksum );
okano 7:815366f003ee 272 checksum = 0;
okano 7:815366f003ee 273
okano 7:815366f003ee 274 sprintf( command_str, "P %d %d\r\n", total_size / SECTOR_SIZE, total_size / SECTOR_SIZE );
okano 7:815366f003ee 275 try_and_check( command_str, "0", 0 );
okano 7:815366f003ee 276
okano 7:815366f003ee 277 sprintf( command_str, "C %d %d %d\r\n", total_size, RAM_WRITE_START, flash_writing_size );
okano 7:815366f003ee 278 try_and_check( command_str, "0", 0 );
okano 7:815366f003ee 279
okano 7:815366f003ee 280 total_size += size;
okano 7:815366f003ee 281 }
okano 7:815366f003ee 282
okano 7:815366f003ee 283 try_and_check( "G 0 T\r\n", "0", 0 );
okano 7:815366f003ee 284 free( b );
okano 7:815366f003ee 285
okano 7:815366f003ee 286 return ( transfer_count );
okano 7:815366f003ee 287 }
okano 7:815366f003ee 288
okano 7:815366f003ee 289
okano 7:815366f003ee 290 void initialize_uue_table( void )
okano 7:815366f003ee 291 {
okano 7:815366f003ee 292 int i;
okano 7:815366f003ee 293
okano 7:815366f003ee 294 uue_table[0] = 0x60; // 0x20 is translated to 0x60 !
okano 7:815366f003ee 295
okano 7:815366f003ee 296 for (i = 1; i < 64; i++) {
okano 7:815366f003ee 297 uue_table[i] = (char)(0x20 + i);
okano 7:815366f003ee 298 }
okano 7:815366f003ee 299 }
okano 7:815366f003ee 300
okano 7:815366f003ee 301
okano 7:815366f003ee 302 long bin2uue( char *bin, char *str )
okano 7:815366f003ee 303 {
okano 7:815366f003ee 304 unsigned long v;
okano 7:815366f003ee 305 long checksum = 0;
okano 7:815366f003ee 306 int strpos = 0;
okano 7:815366f003ee 307
okano 7:815366f003ee 308 *(str + strpos++) = ' ' + BYTES_PER_LINE;
okano 7:815366f003ee 309
okano 7:815366f003ee 310 for ( int i = 0; i < BYTES_PER_LINE; i += 3 ) {
okano 7:815366f003ee 311 checksum += *(bin + i + 0) + *(bin + i + 1) + *(bin + i + 2);
okano 7:815366f003ee 312 v = (*(bin + i + 0) << 16) | (*(bin + i + 1) << 8) | (*(bin + i + 2) << 0);
okano 7:815366f003ee 313 *(str + strpos++) = uue_table[ (v >> 18) & 0x3F ];
okano 7:815366f003ee 314 *(str + strpos++) = uue_table[ (v >> 12) & 0x3F ];
okano 7:815366f003ee 315 *(str + strpos++) = uue_table[ (v >> 6) & 0x3F ];
okano 7:815366f003ee 316 *(str + strpos++) = uue_table[ (v >> 0) & 0x3F ];
okano 7:815366f003ee 317 }
okano 7:815366f003ee 318 *(str + strpos++) = '\n';
okano 7:815366f003ee 319 *(str + strpos++) = '\0';
okano 7:815366f003ee 320
okano 7:815366f003ee 321 return checksum;
okano 7:815366f003ee 322 }
okano 6:0ae6fe8c8512 323
okano 6:0ae6fe8c8512 324
okano 6:0ae6fe8c8512 325 int get_flash_writing_size( int ram_size )
okano 6:0ae6fe8c8512 326 {
okano 6:0ae6fe8c8512 327 int flash_writing_size[] = {
okano 6:0ae6fe8c8512 328 4096,
okano 6:0ae6fe8c8512 329 1024,
okano 6:0ae6fe8c8512 330 512,
okano 6:0ae6fe8c8512 331 256
okano 6:0ae6fe8c8512 332 };
okano 6:0ae6fe8c8512 333 int available_size;
okano 6:0ae6fe8c8512 334 int i;
okano 7:815366f003ee 335
okano 6:0ae6fe8c8512 336 available_size = ram_size - RAM_WRITE_OFFSET;
okano 7:815366f003ee 337
okano 6:0ae6fe8c8512 338 for ( i = 0; i < sizeof( flash_writing_size ) / sizeof( int ); i++ ) {
okano 6:0ae6fe8c8512 339 if ( flash_writing_size[ i ] < available_size )
okano 6:0ae6fe8c8512 340 break;
okano 6:0ae6fe8c8512 341 }
okano 7:815366f003ee 342
okano 6:0ae6fe8c8512 343 return ( flash_writing_size[ i ] );
okano 6:0ae6fe8c8512 344 }
okano 4:55f1977bd11a 345
okano 4:55f1977bd11a 346
okano 1:54e619428ae6 347 void add_isp_checksum( char *b )
okano 1:54e619428ae6 348 {
okano 1:54e619428ae6 349 // see http://www.lpcware.com/content/nxpfile/lpc177x8x-checksum-insertion-program
okano 7:815366f003ee 350
okano 1:54e619428ae6 351 unsigned int *p;
okano 1:54e619428ae6 352 unsigned int cksum = 0;
okano 7:815366f003ee 353
okano 1:54e619428ae6 354 p = (unsigned int *)b;
okano 7:815366f003ee 355
okano 1:54e619428ae6 356 for ( int i = 0; i < 7; i++ ) {
okano 1:54e619428ae6 357 cksum += *p++;
okano 1:54e619428ae6 358 }
okano 7:815366f003ee 359
okano 1:54e619428ae6 360 printf( " -- value at checksum slot : 0x%08X\r\n", *p );
okano 7:815366f003ee 361
okano 1:54e619428ae6 362 *p = 0xFFFFFFFF - cksum + 1;
okano 1:54e619428ae6 363 printf( " -- calculated checksum : 0x%08X\r\n", *p );
okano 7:815366f003ee 364
okano 1:54e619428ae6 365 printf( " new checksum will be used to program flash\r\n" );
okano 1:54e619428ae6 366 }
okano 1:54e619428ae6 367
okano 1:54e619428ae6 368
okano 4:55f1977bd11a 369 void send_RAM_transfer_checksum( int checksum )
okano 4:55f1977bd11a 370 {
okano 4:55f1977bd11a 371 char command[ 16 ];
okano 7:815366f003ee 372
okano 4:55f1977bd11a 373 sprintf( command, "%d\n", checksum );
okano 4:55f1977bd11a 374 try_and_check( command, "OK", 0 );
okano 4:55f1977bd11a 375 }
okano 4:55f1977bd11a 376
okano 0:6baefda2e511 377
okano 0:6baefda2e511 378 void put_string( char *s )
okano 0:6baefda2e511 379 {
okano 2:8d75eb0ecd20 380 char c;
okano 2:8d75eb0ecd20 381 static int i = 0;
okano 7:815366f003ee 382
okano 3:3c380e643e74 383 while ( c = *s++ ) {
okano 0:6baefda2e511 384 target.putc( c );
okano 2:8d75eb0ecd20 385 leds = i++ & 0x1;
okano 2:8d75eb0ecd20 386 }
okano 0:6baefda2e511 387 }
okano 0:6baefda2e511 388
okano 7:815366f003ee 389
okano 0:6baefda2e511 390 void get_string( char *s )
okano 0:6baefda2e511 391 {
okano 0:6baefda2e511 392 int i = 0;
okano 0:6baefda2e511 393 char c = 0;
okano 7:815366f003ee 394
okano 0:6baefda2e511 395 do {
okano 0:6baefda2e511 396 do {
okano 0:6baefda2e511 397 if ( target.readable() ) {
okano 0:6baefda2e511 398 c = target.getc();
okano 7:815366f003ee 399
okano 0:6baefda2e511 400 if ( ( c == '\n') || (c == '\r') )
okano 0:6baefda2e511 401 break;
okano 7:815366f003ee 402
okano 0:6baefda2e511 403 *s++ = c;
okano 0:6baefda2e511 404 i++;
okano 0:6baefda2e511 405 }
okano 0:6baefda2e511 406 } while ( 1 );
okano 0:6baefda2e511 407 } while ( !i );
okano 7:815366f003ee 408
okano 0:6baefda2e511 409 *s = '\0';
okano 0:6baefda2e511 410 }