HAPI- Tech / Mbed 2 deprecated ika_shouyu_poppoyaki

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Dependencies:   DirectoryList MODSERIAL mbed

Fork of ika_shouyu_poppoyaki by Tedd OKANO

writing.cpp@26:a63e73885b21, 2013-09-13 (annotated)

Committer:
okano
Date:
Fri Sep 13 12:56:23 2013 +0000
Revision:
26:a63e73885b21
Parent:
24:9830b4f1207b
Child:
27:2b5c1eb39bb5
code is still dirty but it works. I hope I will have chance to clean up some day...

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okano 22:bd98a782fba6 1
okano 22:bd98a782fba6 2 #include "mbed.h"
okano 22:bd98a782fba6 3 #include "writing.h"
okano 22:bd98a782fba6 4 #include "command_interface.h"
okano 22:bd98a782fba6 5 #include "uu_coding.h"
okano 22:bd98a782fba6 6 #include "serial_utilities.h"
okano 24:9830b4f1207b 7 #include "ika.h"
okano 22:bd98a782fba6 8
okano 22:bd98a782fba6 9
okano 22:bd98a782fba6 10 int write_uuencoded_data( FILE *fp, int ram_size, int sector_size, unsigned int );
okano 22:bd98a782fba6 11 int write_binary_data( FILE *fp, int ram_size, int sector_size, unsigned int ram_start );
okano 22:bd98a782fba6 12 int get_flash_writing_size( int ram_size, unsigned int ram_start );
okano 22:bd98a782fba6 13
okano 22:bd98a782fba6 14
okano 22:bd98a782fba6 15 int write_flash( FILE *fp, target_param *tpp )
okano 22:bd98a782fba6 16 {
okano 22:bd98a782fba6 17 if ( tpp->write_type == BINARY )
okano 22:bd98a782fba6 18 write_binary_data( fp, tpp->ram_size, tpp->sector_size, tpp->ram_start_address );
okano 22:bd98a782fba6 19 else // UUENCODE
okano 22:bd98a782fba6 20 write_uuencoded_data( fp, tpp->ram_size, tpp->sector_size, tpp->ram_start_address );
okano 26:a63e73885b21 21
okano 26:a63e73885b21 22 return ( 0 ); // this is temporallry return code
okano 22:bd98a782fba6 23 }
okano 22:bd98a782fba6 24
okano 22:bd98a782fba6 25
okano 22:bd98a782fba6 26 int write_uuencoded_data( FILE *fp, int ram_size, int sector_size, unsigned int ram_start )
okano 22:bd98a782fba6 27 {
okano 22:bd98a782fba6 28 #define BYTES_PER_LINE 45
okano 22:bd98a782fba6 29
okano 22:bd98a782fba6 30 char command_str[ STR_BUFF_SIZE ];
okano 22:bd98a782fba6 31 long checksum = 0;
okano 22:bd98a782fba6 32 int total_size = 0;
okano 22:bd98a782fba6 33 int size;
okano 22:bd98a782fba6 34
okano 22:bd98a782fba6 35 int flash_writing_size;
okano 22:bd98a782fba6 36 int lines_per_transfer;
okano 22:bd98a782fba6 37 int transfer_size;
okano 22:bd98a782fba6 38
okano 22:bd98a782fba6 39 char *b;
okano 22:bd98a782fba6 40
okano 22:bd98a782fba6 41 initialize_uue_table();
okano 22:bd98a782fba6 42
okano 22:bd98a782fba6 43 flash_writing_size = get_flash_writing_size( ram_size, ram_start );
okano 22:bd98a782fba6 44 lines_per_transfer = ((flash_writing_size / BYTES_PER_LINE) + 1);
okano 22:bd98a782fba6 45 transfer_size = (((flash_writing_size + 11) / 12) * 12);
okano 22:bd98a782fba6 46
okano 22:bd98a782fba6 47 // char b[ transfer_size ]; // this can be done in mbed-compiler. but I should do it in common way
okano 22:bd98a782fba6 48
okano 22:bd98a782fba6 49 if ( NULL == (b = (char *)malloc( transfer_size * sizeof( char ) )) )
okano 22:bd98a782fba6 50 error( "malloc error happened\r\n" );
okano 22:bd98a782fba6 51
okano 22:bd98a782fba6 52 for ( int i = flash_writing_size; i < transfer_size; i++ )
okano 22:bd98a782fba6 53 b[ i ] = 0; // this is not neccesary but just stuffing stuffing bytes
okano 22:bd98a782fba6 54
okano 22:bd98a782fba6 55 while ( size = fread( b, sizeof( char ), flash_writing_size, fp ) ) {
okano 22:bd98a782fba6 56
okano 22:bd98a782fba6 57 if ( !total_size ) {
okano 22:bd98a782fba6 58 // overwriting 4 bytes data for address=0x1C
okano 22:bd98a782fba6 59 // there is a slot for checksum that is checked in (target's) boot process
okano 22:bd98a782fba6 60 add_isp_checksum( b );
okano 22:bd98a782fba6 61 }
okano 22:bd98a782fba6 62
okano 22:bd98a782fba6 63 sprintf( command_str, "W %ld %ld\r\n", ram_start, transfer_size );
okano 22:bd98a782fba6 64 try_and_check( command_str, "0", 0 );
okano 22:bd98a782fba6 65
okano 22:bd98a782fba6 66 for ( int i = 0; i < lines_per_transfer; i++ ) {
okano 22:bd98a782fba6 67
okano 22:bd98a782fba6 68 checksum += bin2uue( b + (i * BYTES_PER_LINE), command_str, i == (lines_per_transfer - 1) ? (transfer_size % BYTES_PER_LINE) : BYTES_PER_LINE );
okano 22:bd98a782fba6 69
okano 22:bd98a782fba6 70 // printf( " data -- %02d %s\r", i, command_str );
okano 22:bd98a782fba6 71
okano 22:bd98a782fba6 72 put_string( command_str );
okano 22:bd98a782fba6 73
okano 22:bd98a782fba6 74 if ( !((i + 1) % 20) ) {
okano 22:bd98a782fba6 75 send_RAM_transfer_checksum( checksum );
okano 22:bd98a782fba6 76 checksum = 0;
okano 22:bd98a782fba6 77 }
okano 22:bd98a782fba6 78 }
okano 22:bd98a782fba6 79
okano 22:bd98a782fba6 80 send_RAM_transfer_checksum( checksum );
okano 22:bd98a782fba6 81 checksum = 0;
okano 22:bd98a782fba6 82
okano 22:bd98a782fba6 83 sprintf( command_str, "P %d %d\r\n", total_size / sector_size, total_size / sector_size );
okano 22:bd98a782fba6 84 try_and_check( command_str, "0", 0 );
okano 22:bd98a782fba6 85
okano 22:bd98a782fba6 86 sprintf( command_str, "C %d %d %d\r\n", total_size, ram_start, flash_writing_size );
okano 22:bd98a782fba6 87 try_and_check( command_str, "0", 0 );
okano 22:bd98a782fba6 88
okano 22:bd98a782fba6 89 total_size += size;
okano 22:bd98a782fba6 90 }
okano 22:bd98a782fba6 91
okano 22:bd98a782fba6 92 free( b );
okano 22:bd98a782fba6 93
okano 22:bd98a782fba6 94 return ( total_size );
okano 22:bd98a782fba6 95 }
okano 22:bd98a782fba6 96
okano 22:bd98a782fba6 97
okano 22:bd98a782fba6 98 int write_binary_data( FILE *fp, int ram_size, int sector_size, unsigned int ram_start )
okano 22:bd98a782fba6 99 {
okano 22:bd98a782fba6 100 char command_str[ STR_BUFF_SIZE ];
okano 22:bd98a782fba6 101 int total_size = 0;
okano 22:bd98a782fba6 102 int size;
okano 22:bd98a782fba6 103 int flash_writing_size;
okano 22:bd98a782fba6 104 char *b;
okano 22:bd98a782fba6 105
okano 22:bd98a782fba6 106 flash_writing_size = 256;
okano 22:bd98a782fba6 107
okano 22:bd98a782fba6 108 if ( NULL == (b = (char *)malloc( flash_writing_size * sizeof( char ) )) )
okano 22:bd98a782fba6 109 error( "malloc error happened\r\n" );
okano 22:bd98a782fba6 110
okano 22:bd98a782fba6 111 while ( size = fread( b, sizeof( char ), flash_writing_size, fp ) ) {
okano 22:bd98a782fba6 112
okano 22:bd98a782fba6 113 if ( !total_size ) {
okano 22:bd98a782fba6 114 // overwriting 4 bytes data for address=0x1C
okano 22:bd98a782fba6 115 // there is a slot for checksum that is checked in (target's) boot process
okano 22:bd98a782fba6 116 add_isp_checksum( b );
okano 22:bd98a782fba6 117 }
okano 22:bd98a782fba6 118
okano 22:bd98a782fba6 119 sprintf( command_str, "W %ld %ld\r\n", ram_start, flash_writing_size );
okano 22:bd98a782fba6 120 try_and_check( command_str, "0", 0 );
okano 22:bd98a782fba6 121
okano 22:bd98a782fba6 122 put_binary( b, flash_writing_size );
okano 22:bd98a782fba6 123 put_string( "\r\n" );
okano 22:bd98a782fba6 124
okano 22:bd98a782fba6 125 sprintf( command_str, "P %d %d\r\n", total_size / sector_size, total_size / sector_size );
okano 22:bd98a782fba6 126 try_and_check( command_str, "0", 0 );
okano 22:bd98a782fba6 127
okano 22:bd98a782fba6 128 sprintf( command_str, "C %d %d %d\r\n", total_size, ram_start, flash_writing_size );
okano 22:bd98a782fba6 129 try_and_check( command_str, "0", 0 );
okano 22:bd98a782fba6 130
okano 22:bd98a782fba6 131 total_size += size;
okano 22:bd98a782fba6 132 //printf( " total %d bytes transferred\r", total_size );
okano 22:bd98a782fba6 133
okano 22:bd98a782fba6 134 }
okano 22:bd98a782fba6 135
okano 22:bd98a782fba6 136 free( b );
okano 22:bd98a782fba6 137
okano 22:bd98a782fba6 138 return ( total_size );
okano 22:bd98a782fba6 139 }
okano 22:bd98a782fba6 140
okano 22:bd98a782fba6 141
okano 22:bd98a782fba6 142 void add_isp_checksum( char *b )
okano 22:bd98a782fba6 143 {
okano 22:bd98a782fba6 144 // see http://www.lpcware.com/content/nxpfile/lpc177x8x-checksum-insertion-program
okano 22:bd98a782fba6 145
okano 22:bd98a782fba6 146 unsigned int *p;
okano 22:bd98a782fba6 147 unsigned int cksum = 0;
okano 22:bd98a782fba6 148
okano 22:bd98a782fba6 149 p = (unsigned int *)b;
okano 22:bd98a782fba6 150
okano 22:bd98a782fba6 151 for ( int i = 0; i < 7; i++ ) {
okano 22:bd98a782fba6 152 cksum += *p++;
okano 22:bd98a782fba6 153 }
okano 22:bd98a782fba6 154
okano 22:bd98a782fba6 155 printf( " -- value at checksum slot : 0x%08X\r\n", *p );
okano 22:bd98a782fba6 156
okano 22:bd98a782fba6 157 *p = 0xFFFFFFFF - cksum + 1;
okano 22:bd98a782fba6 158 printf( " -- calculated checksum : 0x%08X\r\n", *p );
okano 22:bd98a782fba6 159
okano 26:a63e73885b21 160 printf( " new checksum will be used programing flash\r\n" );
okano 22:bd98a782fba6 161 }
okano 22:bd98a782fba6 162
okano 22:bd98a782fba6 163
okano 22:bd98a782fba6 164 int get_flash_writing_size( int ram_size, unsigned int ram_start )
okano 22:bd98a782fba6 165 {
okano 22:bd98a782fba6 166 int flash_writing_size[] = {
okano 22:bd98a782fba6 167 4096,
okano 22:bd98a782fba6 168 1024,
okano 22:bd98a782fba6 169 512,
okano 22:bd98a782fba6 170 256
okano 22:bd98a782fba6 171 };
okano 22:bd98a782fba6 172 int available_size;
okano 22:bd98a782fba6 173 int i;
okano 22:bd98a782fba6 174
okano 22:bd98a782fba6 175 available_size = ram_size - (ram_start & 0xFFFF);
okano 22:bd98a782fba6 176
okano 22:bd98a782fba6 177 for ( i = 0; i < sizeof( flash_writing_size ) / sizeof( int ); i++ ) {
okano 22:bd98a782fba6 178 if ( flash_writing_size[ i ] < available_size )
okano 22:bd98a782fba6 179 break;
okano 22:bd98a782fba6 180 }
okano 22:bd98a782fba6 181
okano 22:bd98a782fba6 182 return ( flash_writing_size[ i ] );
okano 22:bd98a782fba6 183 }