MZJ / Mbed 2 deprecated shaun_larada

Aes encryption code

Dependencies:   Crypto USBDevice mbed

Fork of larada by MZJ

IAP.cpp@7:ed473cf0afaf, 2016-03-12 (annotated)

Committer:
AamirNiaz
Date:
Sat Mar 12 13:04:47 2016 +0000
Revision:
7:ed473cf0afaf
Parent:
0:aaf22a04f350 
Aamir

Who changed what in which revision?

UserRevisionLine numberNew contents of line
stupid 0:aaf22a04f350 1 /** IAP : internal Flash memory access library
stupid 0:aaf22a04f350 2 *
stupid 0:aaf22a04f350 3 * The internal Flash memory access is described in the LPC1768 usermanual.
stupid 0:aaf22a04f350 4 * http://www.nxp.com/documents/user_manual/UM10360.pdf
stupid 0:aaf22a04f350 5 *
stupid 0:aaf22a04f350 6 * Chapter 2: "LPC17xx Memory map"
stupid 0:aaf22a04f350 7 * Chapter 32: "LPC17xx Flash memory interface and programming"
stupid 0:aaf22a04f350 8 * refering Rev. 01 - 4 January 2010
stupid 0:aaf22a04f350 9 *
stupid 0:aaf22a04f350 10 * Released under the MIT License: http://mbed.org/license/mit
stupid 0:aaf22a04f350 11 *
stupid 0:aaf22a04f350 12 * revision 1.0 09-Mar-2010 1st release
stupid 0:aaf22a04f350 13 * revision 1.1 12-Mar-2010 chaged: to make possible to reserve flash area for user
stupid 0:aaf22a04f350 14 * it can be set by USER_FLASH_AREA_START and USER_FLASH_AREA_SIZE in IAP.h
stupid 0:aaf22a04f350 15 *
stupid 0:aaf22a04f350 16 * by Tedd OKANO http://mbed.org/users/okano/notebook/iap-in-application-programming-internal-flash-eras/
stupid 0:aaf22a04f350 17 * modified by Suga (supported to LPC11U24)
stupid 0:aaf22a04f350 18 */
stupid 0:aaf22a04f350 19
stupid 0:aaf22a04f350 20 #include "mbed.h"
stupid 0:aaf22a04f350 21 #include "IAP.h"
stupid 0:aaf22a04f350 22
stupid 0:aaf22a04f350 23 #define USER_FLASH_AREA_START_STR( x ) STR( x )
stupid 0:aaf22a04f350 24 #define STR( x ) #x
stupid 0:aaf22a04f350 25
stupid 0:aaf22a04f350 26 unsigned char user_area[ USER_FLASH_AREA_SIZE ] __attribute__((section( ".ARM.__at_" USER_FLASH_AREA_START_STR( USER_FLASH_AREA_START ) ), zero_init));
stupid 0:aaf22a04f350 27
stupid 0:aaf22a04f350 28
stupid 0:aaf22a04f350 29 /*
stupid 0:aaf22a04f350 30 * Reserve of flash area is explained by Igor. Please refer next URL
stupid 0:aaf22a04f350 31 * http://mbed.org/users/okano/notebook/iap-in-application-programming-internal-flash-eras/?page=1#comment-271
stupid 0:aaf22a04f350 32 */
stupid 0:aaf22a04f350 33
stupid 0:aaf22a04f350 34 //unsigned char user_area[ size ] __attribute__((section(".ARM.__at_0x78000"), zero_init));
stupid 0:aaf22a04f350 35
stupid 0:aaf22a04f350 36 /*
stupid 0:aaf22a04f350 37 * IAP command codes
stupid 0:aaf22a04f350 38 * Table 589. "IAP Command Summary", Chapter 8. "IAP commands", usermanual
stupid 0:aaf22a04f350 39 */
stupid 0:aaf22a04f350 40
stupid 0:aaf22a04f350 41 enum command_code
stupid 0:aaf22a04f350 42 {
stupid 0:aaf22a04f350 43 IAPCommand_Prepare_sector_for_write_operation = 50,
stupid 0:aaf22a04f350 44 IAPCommand_Copy_RAM_to_Flash,
stupid 0:aaf22a04f350 45 IAPCommand_Erase_sector,
stupid 0:aaf22a04f350 46 IAPCommand_Blank_check_sector,
stupid 0:aaf22a04f350 47 IAPCommand_Read_part_ID,
stupid 0:aaf22a04f350 48 IAPCommand_Read_Boot_Code_version,
stupid 0:aaf22a04f350 49 IAPCommand_Compare,
stupid 0:aaf22a04f350 50 IAPCommand_Reinvoke_ISP,
stupid 0:aaf22a04f350 51 IAPCommand_Read_device_serial_number,
stupid 0:aaf22a04f350 52 IAPCommand_EEPROM_Write = 61,
stupid 0:aaf22a04f350 53 IAPCommand_EEPROM_Read,
stupid 0:aaf22a04f350 54 };
stupid 0:aaf22a04f350 55
stupid 0:aaf22a04f350 56
stupid 0:aaf22a04f350 57 /** Read part identification number
stupid 0:aaf22a04f350 58 *
stupid 0:aaf22a04f350 59 * @return device ID
stupid 0:aaf22a04f350 60 * @see read_serial()
stupid 0:aaf22a04f350 61 */
stupid 0:aaf22a04f350 62
stupid 0:aaf22a04f350 63 int IAP::read_ID( void ) {
stupid 0:aaf22a04f350 64 IAP_command[ 0 ] = IAPCommand_Read_part_ID;
stupid 0:aaf22a04f350 65
stupid 0:aaf22a04f350 66 iap_entry( IAP_command, IAP_result );
stupid 0:aaf22a04f350 67
stupid 0:aaf22a04f350 68 // return ( (int)IAP_result[ 0 ] );
stupid 0:aaf22a04f350 69 return ( (int)IAP_result[ 1 ] ); // to return the number itself (this command always returns CMD_SUCCESS)
stupid 0:aaf22a04f350 70 }
stupid 0:aaf22a04f350 71
stupid 0:aaf22a04f350 72
stupid 0:aaf22a04f350 73 /** Read device serial number
stupid 0:aaf22a04f350 74 *
stupid 0:aaf22a04f350 75 * @return device serial number
stupid 0:aaf22a04f350 76 * @see read_ID()
stupid 0:aaf22a04f350 77 */
stupid 0:aaf22a04f350 78
stupid 0:aaf22a04f350 79 int IAP::read_serial( void ) {
stupid 0:aaf22a04f350 80 IAP_command[ 0 ] = IAPCommand_Read_device_serial_number;
stupid 0:aaf22a04f350 81
stupid 0:aaf22a04f350 82 iap_entry( IAP_command, IAP_result );
stupid 0:aaf22a04f350 83
stupid 0:aaf22a04f350 84 // return ( (int)IAP_result[ 0 ] );
stupid 0:aaf22a04f350 85 return ( (int)IAP_result[ 1 ] ); // to return the number itself (this command always returns CMD_SUCCESS)
stupid 0:aaf22a04f350 86 }
stupid 0:aaf22a04f350 87
stupid 0:aaf22a04f350 88
stupid 0:aaf22a04f350 89 /** Blank check sector(s)
stupid 0:aaf22a04f350 90 *
stupid 0:aaf22a04f350 91 * @param start a Start Sector Number
stupid 0:aaf22a04f350 92 * @param end an End Sector Number (should be greater than or equal to start sector number).
stupid 0:aaf22a04f350 93 * @return error code: CMD_SUCCESS | BUSY | SECTOR_NOT_BLANK | INVALID_SECTOR
stupid 0:aaf22a04f350 94 */
stupid 0:aaf22a04f350 95
stupid 0:aaf22a04f350 96 int IAP::blank_check( int start, int end ) {
stupid 0:aaf22a04f350 97 IAP_command[ 0 ] = IAPCommand_Blank_check_sector;
stupid 0:aaf22a04f350 98 IAP_command[ 1 ] = (unsigned int)start; // Start Sector Number
stupid 0:aaf22a04f350 99 IAP_command[ 2 ] = (unsigned int)end; // End Sector Number (should be greater than or equal to start sector number)
stupid 0:aaf22a04f350 100
stupid 0:aaf22a04f350 101 iap_entry( IAP_command, IAP_result );
stupid 0:aaf22a04f350 102
stupid 0:aaf22a04f350 103 return ( (int)IAP_result[ 0 ] );
stupid 0:aaf22a04f350 104 }
stupid 0:aaf22a04f350 105
stupid 0:aaf22a04f350 106
stupid 0:aaf22a04f350 107 /** Erase Sector(s)
stupid 0:aaf22a04f350 108 *
stupid 0:aaf22a04f350 109 * @param start a Start Sector Number
stupid 0:aaf22a04f350 110 * @param end an End Sector Number (should be greater than or equal to start sector number).
stupid 0:aaf22a04f350 111 * @return error code: CMD_SUCCESS | BUSY | SECTOR_NOT_PREPARED_FOR_WRITE_OPERATION | INVALID_SECTOR
stupid 0:aaf22a04f350 112 */
stupid 0:aaf22a04f350 113
stupid 0:aaf22a04f350 114 int IAP::erase( int start, int end ) {
stupid 0:aaf22a04f350 115 IAP_command[ 0 ] = IAPCommand_Erase_sector;
stupid 0:aaf22a04f350 116 IAP_command[ 1 ] = (unsigned int)start; // Start Sector Number
stupid 0:aaf22a04f350 117 IAP_command[ 2 ] = (unsigned int)end; // End Sector Number (should be greater than or equal to start sector number)
stupid 0:aaf22a04f350 118 IAP_command[ 3 ] = cclk_kHz; // CPU Clock Frequency (CCLK) in kHz
stupid 0:aaf22a04f350 119
stupid 0:aaf22a04f350 120 iap_entry( IAP_command, IAP_result );
stupid 0:aaf22a04f350 121
stupid 0:aaf22a04f350 122 return ( (int)IAP_result[ 0 ] );
stupid 0:aaf22a04f350 123 }
stupid 0:aaf22a04f350 124
stupid 0:aaf22a04f350 125
stupid 0:aaf22a04f350 126 /** Prepare sector(s) for write operation
stupid 0:aaf22a04f350 127 *
stupid 0:aaf22a04f350 128 * @param start a Start Sector Number
stupid 0:aaf22a04f350 129 * @param end an End Sector Number (should be greater than or equal to start sector number).
stupid 0:aaf22a04f350 130 * @return error code: CMD_SUCCESS | BUSY | INVALID_SECTOR
stupid 0:aaf22a04f350 131 */
stupid 0:aaf22a04f350 132
stupid 0:aaf22a04f350 133 int IAP::prepare( int start, int end ) {
stupid 0:aaf22a04f350 134 IAP_command[ 0 ] = IAPCommand_Prepare_sector_for_write_operation;
stupid 0:aaf22a04f350 135 IAP_command[ 1 ] = (unsigned int)start; // Start Sector Number
stupid 0:aaf22a04f350 136 IAP_command[ 2 ] = (unsigned int)end; // End Sector Number (should be greater than or equal to start sector number).
stupid 0:aaf22a04f350 137
stupid 0:aaf22a04f350 138 iap_entry( IAP_command, IAP_result );
stupid 0:aaf22a04f350 139
stupid 0:aaf22a04f350 140 return ( (int)IAP_result[ 0 ] );
stupid 0:aaf22a04f350 141 }
stupid 0:aaf22a04f350 142
stupid 0:aaf22a04f350 143
stupid 0:aaf22a04f350 144 /** Copy RAM to Flash
stupid 0:aaf22a04f350 145 *
stupid 0:aaf22a04f350 146 * @param source_addr Source RAM address from which data bytes are to be read. This address should be a word boundary.
stupid 0:aaf22a04f350 147 * @param target_addr Destination flash address where data bytes are to be written. This address should be a 256 byte boundary.
stupid 0:aaf22a04f350 148 * @param size Number of bytes to be written. Should be 256 | 512 | 1024 | 4096.
stupid 0:aaf22a04f350 149 * @return error code: CMD_SUCCESS | SRC_ADDR_ERROR (Address not a word boundary) | DST_ADDR_ERROR (Address not on correct boundary) | SRC_ADDR_NOT_MAPPED | DST_ADDR_NOT_MAPPED | COUNT_ERROR (Byte count is not 256 | 512 | 1024 | 4096) | SECTOR_NOT_PREPARED_FOR_WRITE_OPERATION | BUSY
stupid 0:aaf22a04f350 150 */
stupid 0:aaf22a04f350 151
stupid 0:aaf22a04f350 152 int IAP::write( char *source_addr, char *target_addr, int size ) {
stupid 0:aaf22a04f350 153 IAP_command[ 0 ] = IAPCommand_Copy_RAM_to_Flash;
stupid 0:aaf22a04f350 154 IAP_command[ 1 ] = (unsigned int)target_addr; // Destination flash address where data bytes are to be written. This address should be a 256 byte boundary.
stupid 0:aaf22a04f350 155 IAP_command[ 2 ] = (unsigned int)source_addr; // Source RAM address from which data bytes are to be read. This address should be a word boundary.
stupid 0:aaf22a04f350 156 IAP_command[ 3 ] = size; // Number of bytes to be written. Should be 256 | 512 | 1024 | 4096.
stupid 0:aaf22a04f350 157 IAP_command[ 4 ] = cclk_kHz; // CPU Clock Frequency (CCLK) in kHz.
stupid 0:aaf22a04f350 158
stupid 0:aaf22a04f350 159 iap_entry( IAP_command, IAP_result );
stupid 0:aaf22a04f350 160
stupid 0:aaf22a04f350 161 return ( (int)IAP_result[ 0 ] );
stupid 0:aaf22a04f350 162 }
stupid 0:aaf22a04f350 163
stupid 0:aaf22a04f350 164
stupid 0:aaf22a04f350 165 /** Compare <address1> <address2> <no of bytes>
stupid 0:aaf22a04f350 166 *
stupid 0:aaf22a04f350 167 * @param source_addr Starting flash or RAM address of data bytes to be compared. This address should be a word boundary.
stupid 0:aaf22a04f350 168 * @param target_addr Starting flash or RAM address of data bytes to be compared. This address should be a word boundary.
stupid 0:aaf22a04f350 169 * @param size Number of bytes to be compared; should be a multiple of 4.
stupid 0:aaf22a04f350 170 * @return error code: CMD_SUCCESS | COMPARE_ERROR | COUNT_ERROR (Byte count is not a multiple of 4) | ADDR_ERROR | ADDR_NOT_MAPPED
stupid 0:aaf22a04f350 171 */
stupid 0:aaf22a04f350 172
stupid 0:aaf22a04f350 173 int IAP::compare( char *source_addr, char *target_addr, int size ) {
stupid 0:aaf22a04f350 174 IAP_command[ 0 ] = IAPCommand_Compare;
stupid 0:aaf22a04f350 175 IAP_command[ 1 ] = (unsigned int)target_addr; // Starting flash or RAM address of data bytes to be compared. This address should be a word boundary.
stupid 0:aaf22a04f350 176 IAP_command[ 2 ] = (unsigned int)source_addr; // Starting flash or RAM address of data bytes to be compared. This address should be a word boundary.
stupid 0:aaf22a04f350 177 IAP_command[ 3 ] = size; // Number of bytes to be compared; should be a multiple of 4.
stupid 0:aaf22a04f350 178
stupid 0:aaf22a04f350 179 iap_entry( IAP_command, IAP_result );
stupid 0:aaf22a04f350 180
stupid 0:aaf22a04f350 181 return ( (int)IAP_result[ 0 ] );
stupid 0:aaf22a04f350 182 }
stupid 0:aaf22a04f350 183
stupid 0:aaf22a04f350 184
stupid 0:aaf22a04f350 185 /** Get user reserved flash start address
stupid 0:aaf22a04f350 186 *
stupid 0:aaf22a04f350 187 * @return start address of user reserved flash memory
stupid 0:aaf22a04f350 188 * @see reserved_flash_area_size()
stupid 0:aaf22a04f350 189 */
stupid 0:aaf22a04f350 190
stupid 0:aaf22a04f350 191 char * IAP::reserved_flash_area_start( void )
stupid 0:aaf22a04f350 192 {
stupid 0:aaf22a04f350 193 return ( (char *)USER_FLASH_AREA_START );
stupid 0:aaf22a04f350 194 }
stupid 0:aaf22a04f350 195
stupid 0:aaf22a04f350 196
stupid 0:aaf22a04f350 197 /** Get user reserved flash size
stupid 0:aaf22a04f350 198 *
stupid 0:aaf22a04f350 199 * @return size of user reserved flash memory
stupid 0:aaf22a04f350 200 * @see reserved_flash_area_start()
stupid 0:aaf22a04f350 201 */
stupid 0:aaf22a04f350 202
stupid 0:aaf22a04f350 203 int IAP::reserved_flash_area_size( void )
stupid 0:aaf22a04f350 204 {
stupid 0:aaf22a04f350 205 return ( USER_FLASH_AREA_SIZE );
stupid 0:aaf22a04f350 206 }
stupid 0:aaf22a04f350 207
stupid 0:aaf22a04f350 208 #if defined(TARGET_LPC11U24)
stupid 0:aaf22a04f350 209 /** Copy RAM to EEPROM (LPC11U24)
stupid 0:aaf22a04f350 210 *
stupid 0:aaf22a04f350 211 * @param source_addr Source RAM address from which data bytes are to be read.
stupid 0:aaf22a04f350 212 * @param target_addr Destination EEPROM address where data bytes are to be written.
stupid 0:aaf22a04f350 213 * @param size Number of bytes to be written.
stupid 0:aaf22a04f350 214 * @return error code: CMD_SUCCESS | SRC_ADDR_NOT_MAPPED | DST_ADDR_NOT_MAPPED
stupid 0:aaf22a04f350 215 * Remark: The top 64 bytes of the EEPROM memory are reserved and cannot be written to.
stupid 0:aaf22a04f350 216 */
stupid 0:aaf22a04f350 217 int IAP::write_eeprom( char *source_addr, char *target_addr, int size ) {
stupid 0:aaf22a04f350 218 IAP_command[ 0 ] = IAPCommand_EEPROM_Write;
stupid 0:aaf22a04f350 219 IAP_command[ 1 ] = (unsigned int)target_addr; // Destination EEPROM address where data bytes are to be written. This address should be a 256 byte boundary.
stupid 0:aaf22a04f350 220 IAP_command[ 2 ] = (unsigned int)source_addr; // Source RAM address from which data bytes are to be read. This address should be a word boundary.
stupid 0:aaf22a04f350 221 IAP_command[ 3 ] = size; // Number of bytes to be written. Should be 256 | 512 | 1024 | 4096.
stupid 0:aaf22a04f350 222 IAP_command[ 4 ] = cclk_kHz; // CPU Clock Frequency (CCLK) in kHz.
stupid 0:aaf22a04f350 223
stupid 0:aaf22a04f350 224 iap_entry( IAP_command, IAP_result );
stupid 0:aaf22a04f350 225
stupid 0:aaf22a04f350 226 return ( (int)IAP_result[ 0 ] );
stupid 0:aaf22a04f350 227 }
stupid 0:aaf22a04f350 228
stupid 0:aaf22a04f350 229 /** Copy EEPROM to RAM (LPC11U24)
stupid 0:aaf22a04f350 230 *
stupid 0:aaf22a04f350 231 * @param source_addr Source EEPROM address from which data bytes are to be read.
stupid 0:aaf22a04f350 232 * @param target_addr Destination RAM address where data bytes are to be written.
stupid 0:aaf22a04f350 233 * @param size Number of bytes to be written.
stupid 0:aaf22a04f350 234 * @return error code: CMD_SUCCESS | SRC_ADDR_NOT_MAPPED | DST_ADDR_NOT_MAPPED
stupid 0:aaf22a04f350 235 * Remark: The top 64 bytes of the EEPROM memory are reserved and cannot be written to.
stupid 0:aaf22a04f350 236 */
stupid 0:aaf22a04f350 237 int IAP::read_eeprom( char *source_addr, char *target_addr, int size ) {
stupid 0:aaf22a04f350 238 IAP_command[ 0 ] = IAPCommand_EEPROM_Read;
stupid 0:aaf22a04f350 239 IAP_command[ 1 ] = (unsigned int)source_addr; // Source EEPROM address from which data bytes are to be read. This address should be a word boundary.
stupid 0:aaf22a04f350 240 IAP_command[ 2 ] = (unsigned int)target_addr; // Destination RAM address where data bytes are to be written. This address should be a 256 byte boundary.
stupid 0:aaf22a04f350 241 IAP_command[ 3 ] = size; // Number of bytes to be written. Should be 256 | 512 | 1024 | 4096.
stupid 0:aaf22a04f350 242 IAP_command[ 4 ] = cclk_kHz; // CPU Clock Frequency (CCLK) in kHz.
stupid 0:aaf22a04f350 243
stupid 0:aaf22a04f350 244 iap_entry( IAP_command, IAP_result );
stupid 0:aaf22a04f350 245
stupid 0:aaf22a04f350 246 return ( (int)IAP_result[ 0 ] );
stupid 0:aaf22a04f350 247 }
stupid 0:aaf22a04f350 248 #endif