Dmitry Kovalev
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IAP.cpp@130:1421dda4d7e7, 2016-04-12 (annotated)
- Committer:
- Kovalev_D
- Date:
- Tue Apr 12 13:50:34 2016 +0000
- Revision:
- 130:1421dda4d7e7
iap
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Kovalev_D | 130:1421dda4d7e7 | 1 | |
Kovalev_D | 130:1421dda4d7e7 | 2 | |
Kovalev_D | 130:1421dda4d7e7 | 3 | #include "mbed.h" |
Kovalev_D | 130:1421dda4d7e7 | 4 | #include "IAP.h" |
Kovalev_D | 130:1421dda4d7e7 | 5 | |
Kovalev_D | 130:1421dda4d7e7 | 6 | #define USER_FLASH_AREA_START_STR( x ) STR( x ) |
Kovalev_D | 130:1421dda4d7e7 | 7 | #define STR( x ) #x |
Kovalev_D | 130:1421dda4d7e7 | 8 | |
Kovalev_D | 130:1421dda4d7e7 | 9 | unsigned char user_area[ USER_FLASH_AREA_SIZE ] __attribute__((section( ".ARM.__at_" USER_FLASH_AREA_START_STR( USER_FLASH_AREA_START ) ), zero_init)); |
Kovalev_D | 130:1421dda4d7e7 | 10 | |
Kovalev_D | 130:1421dda4d7e7 | 11 | /* |
Kovalev_D | 130:1421dda4d7e7 | 12 | * Reserve of flash area is explained by Igor. Please refer next URL |
Kovalev_D | 130:1421dda4d7e7 | 13 | * http://mbed.org/users/okano/notebook/iap-in-application-programming-internal-flash-eras/?page=1#comment-271 |
Kovalev_D | 130:1421dda4d7e7 | 14 | */ |
Kovalev_D | 130:1421dda4d7e7 | 15 | |
Kovalev_D | 130:1421dda4d7e7 | 16 | //unsigned char user_area[ size ] __attribute__((section(".ARM.__at_0x78000"), zero_init)); |
Kovalev_D | 130:1421dda4d7e7 | 17 | |
Kovalev_D | 130:1421dda4d7e7 | 18 | /* |
Kovalev_D | 130:1421dda4d7e7 | 19 | * IAP command codes |
Kovalev_D | 130:1421dda4d7e7 | 20 | * Table 589. "IAP Command Summary", Chapter 8. "IAP commands", usermanual |
Kovalev_D | 130:1421dda4d7e7 | 21 | */ |
Kovalev_D | 130:1421dda4d7e7 | 22 | |
Kovalev_D | 130:1421dda4d7e7 | 23 | enum command_code { |
Kovalev_D | 130:1421dda4d7e7 | 24 | IAPCommand_Prepare_sector_for_write_operation = 50, |
Kovalev_D | 130:1421dda4d7e7 | 25 | IAPCommand_Copy_RAM_to_Flash, |
Kovalev_D | 130:1421dda4d7e7 | 26 | IAPCommand_Erase_sector, |
Kovalev_D | 130:1421dda4d7e7 | 27 | IAPCommand_Blank_check_sector, |
Kovalev_D | 130:1421dda4d7e7 | 28 | IAPCommand_Read_part_ID, |
Kovalev_D | 130:1421dda4d7e7 | 29 | IAPCommand_Read_Boot_Code_version, |
Kovalev_D | 130:1421dda4d7e7 | 30 | IAPCommand_Compare, |
Kovalev_D | 130:1421dda4d7e7 | 31 | IAPCommand_Reinvoke_ISP, |
Kovalev_D | 130:1421dda4d7e7 | 32 | IAPCommand_Read_device_serial_number, |
Kovalev_D | 130:1421dda4d7e7 | 33 | #if defined(TARGET_LPC11UXX) |
Kovalev_D | 130:1421dda4d7e7 | 34 | IAPCommand_EEPROM_Write = 61, |
Kovalev_D | 130:1421dda4d7e7 | 35 | IAPCommand_EEPROM_Read, |
Kovalev_D | 130:1421dda4d7e7 | 36 | #elif defined(TARGET_LPC81X) || defined(TARGET_LPC82X) |
Kovalev_D | 130:1421dda4d7e7 | 37 | IAPCommand_Erase_page = 59, |
Kovalev_D | 130:1421dda4d7e7 | 38 | #endif |
Kovalev_D | 130:1421dda4d7e7 | 39 | }; |
Kovalev_D | 130:1421dda4d7e7 | 40 | |
Kovalev_D | 130:1421dda4d7e7 | 41 | int IAP::reinvoke_isp( void ) { |
Kovalev_D | 130:1421dda4d7e7 | 42 | __disable_irq(); |
Kovalev_D | 130:1421dda4d7e7 | 43 | |
Kovalev_D | 130:1421dda4d7e7 | 44 | IAP_command[ 0 ] = IAPCommand_Reinvoke_ISP; |
Kovalev_D | 130:1421dda4d7e7 | 45 | |
Kovalev_D | 130:1421dda4d7e7 | 46 | iap_entry( IAP_command, IAP_result ); |
Kovalev_D | 130:1421dda4d7e7 | 47 | |
Kovalev_D | 130:1421dda4d7e7 | 48 | return ( (int)IAP_result[ 0 ] ); |
Kovalev_D | 130:1421dda4d7e7 | 49 | } |
Kovalev_D | 130:1421dda4d7e7 | 50 | |
Kovalev_D | 130:1421dda4d7e7 | 51 | /** Read part identification number |
Kovalev_D | 130:1421dda4d7e7 | 52 | * |
Kovalev_D | 130:1421dda4d7e7 | 53 | * @return device ID |
Kovalev_D | 130:1421dda4d7e7 | 54 | * @see read_serial() |
Kovalev_D | 130:1421dda4d7e7 | 55 | */ |
Kovalev_D | 130:1421dda4d7e7 | 56 | int IAP::read_ID( void ) |
Kovalev_D | 130:1421dda4d7e7 | 57 | { |
Kovalev_D | 130:1421dda4d7e7 | 58 | IAP_command[ 0 ] = IAPCommand_Read_part_ID; |
Kovalev_D | 130:1421dda4d7e7 | 59 | |
Kovalev_D | 130:1421dda4d7e7 | 60 | iap_entry( IAP_command, IAP_result ); |
Kovalev_D | 130:1421dda4d7e7 | 61 | |
Kovalev_D | 130:1421dda4d7e7 | 62 | // return ( (int)IAP_result[ 0 ] ); |
Kovalev_D | 130:1421dda4d7e7 | 63 | return ( (int)IAP_result[ 1 ] ); // to return the number itself (this command always returns CMD_SUCCESS) |
Kovalev_D | 130:1421dda4d7e7 | 64 | } |
Kovalev_D | 130:1421dda4d7e7 | 65 | |
Kovalev_D | 130:1421dda4d7e7 | 66 | int *IAP::read_serial( void ) { |
Kovalev_D | 130:1421dda4d7e7 | 67 | IAP_command[ 0 ] = IAPCommand_Read_device_serial_number; |
Kovalev_D | 130:1421dda4d7e7 | 68 | |
Kovalev_D | 130:1421dda4d7e7 | 69 | iap_entry( IAP_command, IAP_result ); |
Kovalev_D | 130:1421dda4d7e7 | 70 | |
Kovalev_D | 130:1421dda4d7e7 | 71 | // return ( (int)IAP_result[ 0 ] ); |
Kovalev_D | 130:1421dda4d7e7 | 72 | return ( (int *)&IAP_result[ 1 ] ); // to return the number itself (this command always returns CMD_SUCCESS) |
Kovalev_D | 130:1421dda4d7e7 | 73 | } |
Kovalev_D | 130:1421dda4d7e7 | 74 | |
Kovalev_D | 130:1421dda4d7e7 | 75 | int IAP::blank_check( int start, int end ) |
Kovalev_D | 130:1421dda4d7e7 | 76 | { |
Kovalev_D | 130:1421dda4d7e7 | 77 | IAP_command[ 0 ] = IAPCommand_Blank_check_sector; |
Kovalev_D | 130:1421dda4d7e7 | 78 | IAP_command[ 1 ] = (unsigned int)start; // Start Sector Number |
Kovalev_D | 130:1421dda4d7e7 | 79 | IAP_command[ 2 ] = (unsigned int)end; // End Sector Number (should be greater than or equal to start sector number) |
Kovalev_D | 130:1421dda4d7e7 | 80 | |
Kovalev_D | 130:1421dda4d7e7 | 81 | iap_entry( IAP_command, IAP_result ); |
Kovalev_D | 130:1421dda4d7e7 | 82 | |
Kovalev_D | 130:1421dda4d7e7 | 83 | return ( (int)IAP_result[ 0 ] ); |
Kovalev_D | 130:1421dda4d7e7 | 84 | } |
Kovalev_D | 130:1421dda4d7e7 | 85 | |
Kovalev_D | 130:1421dda4d7e7 | 86 | int IAP::erase( int start, int end ) |
Kovalev_D | 130:1421dda4d7e7 | 87 | { |
Kovalev_D | 130:1421dda4d7e7 | 88 | IAP_command[ 0 ] = IAPCommand_Erase_sector; |
Kovalev_D | 130:1421dda4d7e7 | 89 | IAP_command[ 1 ] = (unsigned int)start; // Start Sector Number |
Kovalev_D | 130:1421dda4d7e7 | 90 | IAP_command[ 2 ] = (unsigned int)end; // End Sector Number (should be greater than or equal to start sector number) |
Kovalev_D | 130:1421dda4d7e7 | 91 | IAP_command[ 3 ] = cclk_kHz; // CPU Clock Frequency (CCLK) in kHz |
Kovalev_D | 130:1421dda4d7e7 | 92 | |
Kovalev_D | 130:1421dda4d7e7 | 93 | iap_entry( IAP_command, IAP_result ); |
Kovalev_D | 130:1421dda4d7e7 | 94 | |
Kovalev_D | 130:1421dda4d7e7 | 95 | return ( (int)IAP_result[ 0 ] ); |
Kovalev_D | 130:1421dda4d7e7 | 96 | } |
Kovalev_D | 130:1421dda4d7e7 | 97 | |
Kovalev_D | 130:1421dda4d7e7 | 98 | int IAP::prepare( int start, int end ) |
Kovalev_D | 130:1421dda4d7e7 | 99 | { |
Kovalev_D | 130:1421dda4d7e7 | 100 | IAP_command[ 0 ] = IAPCommand_Prepare_sector_for_write_operation; |
Kovalev_D | 130:1421dda4d7e7 | 101 | IAP_command[ 1 ] = (unsigned int)start; // Start Sector Number |
Kovalev_D | 130:1421dda4d7e7 | 102 | IAP_command[ 2 ] = (unsigned int)end; // End Sector Number (should be greater than or equal to start sector number). |
Kovalev_D | 130:1421dda4d7e7 | 103 | |
Kovalev_D | 130:1421dda4d7e7 | 104 | iap_entry( IAP_command, IAP_result ); |
Kovalev_D | 130:1421dda4d7e7 | 105 | |
Kovalev_D | 130:1421dda4d7e7 | 106 | return ( (int)IAP_result[ 0 ] ); |
Kovalev_D | 130:1421dda4d7e7 | 107 | } |
Kovalev_D | 130:1421dda4d7e7 | 108 | |
Kovalev_D | 130:1421dda4d7e7 | 109 | int IAP::write( char *source_addr, char *target_addr, int size ) |
Kovalev_D | 130:1421dda4d7e7 | 110 | { |
Kovalev_D | 130:1421dda4d7e7 | 111 | IAP_command[ 0 ] = IAPCommand_Copy_RAM_to_Flash; |
Kovalev_D | 130:1421dda4d7e7 | 112 | 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. |
Kovalev_D | 130:1421dda4d7e7 | 113 | 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. |
Kovalev_D | 130:1421dda4d7e7 | 114 | IAP_command[ 3 ] = size; // Number of bytes to be written. Should be 256 | 512 | 1024 | 4096. |
Kovalev_D | 130:1421dda4d7e7 | 115 | IAP_command[ 4 ] = cclk_kHz; // CPU Clock Frequency (CCLK) in kHz. |
Kovalev_D | 130:1421dda4d7e7 | 116 | |
Kovalev_D | 130:1421dda4d7e7 | 117 | iap_entry( IAP_command, IAP_result ); |
Kovalev_D | 130:1421dda4d7e7 | 118 | |
Kovalev_D | 130:1421dda4d7e7 | 119 | return ( (int)IAP_result[ 0 ] ); |
Kovalev_D | 130:1421dda4d7e7 | 120 | } |
Kovalev_D | 130:1421dda4d7e7 | 121 | |
Kovalev_D | 130:1421dda4d7e7 | 122 | int IAP::compare( char *source_addr, char *target_addr, int size ) |
Kovalev_D | 130:1421dda4d7e7 | 123 | { |
Kovalev_D | 130:1421dda4d7e7 | 124 | IAP_command[ 0 ] = IAPCommand_Compare; |
Kovalev_D | 130:1421dda4d7e7 | 125 | 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. |
Kovalev_D | 130:1421dda4d7e7 | 126 | 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. |
Kovalev_D | 130:1421dda4d7e7 | 127 | IAP_command[ 3 ] = size; // Number of bytes to be compared; should be a multiple of 4. |
Kovalev_D | 130:1421dda4d7e7 | 128 | |
Kovalev_D | 130:1421dda4d7e7 | 129 | iap_entry( IAP_command, IAP_result ); |
Kovalev_D | 130:1421dda4d7e7 | 130 | |
Kovalev_D | 130:1421dda4d7e7 | 131 | return ( (int)IAP_result[ 0 ] ); |
Kovalev_D | 130:1421dda4d7e7 | 132 | } |
Kovalev_D | 130:1421dda4d7e7 | 133 | |
Kovalev_D | 130:1421dda4d7e7 | 134 | int IAP::read_BootVer(void) |
Kovalev_D | 130:1421dda4d7e7 | 135 | { |
Kovalev_D | 130:1421dda4d7e7 | 136 | IAP_command[0] = IAPCommand_Read_Boot_Code_version; |
Kovalev_D | 130:1421dda4d7e7 | 137 | IAP_result[1] = 0; // not sure if in high or low bits. |
Kovalev_D | 130:1421dda4d7e7 | 138 | iap_entry(IAP_command, IAP_result); |
Kovalev_D | 130:1421dda4d7e7 | 139 | return ((int)IAP_result[1]); |
Kovalev_D | 130:1421dda4d7e7 | 140 | } |
Kovalev_D | 130:1421dda4d7e7 | 141 | |
Kovalev_D | 130:1421dda4d7e7 | 142 | char * IAP::reserved_flash_area_start( void ) |
Kovalev_D | 130:1421dda4d7e7 | 143 | { |
Kovalev_D | 130:1421dda4d7e7 | 144 | return ( (char *)USER_FLASH_AREA_START ); |
Kovalev_D | 130:1421dda4d7e7 | 145 | } |
Kovalev_D | 130:1421dda4d7e7 | 146 | |
Kovalev_D | 130:1421dda4d7e7 | 147 | int IAP::reserved_flash_area_size( void ) |
Kovalev_D | 130:1421dda4d7e7 | 148 | { |
Kovalev_D | 130:1421dda4d7e7 | 149 | return ( USER_FLASH_AREA_SIZE ); |
Kovalev_D | 130:1421dda4d7e7 | 150 | } |
Kovalev_D | 130:1421dda4d7e7 | 151 | |
Kovalev_D | 130:1421dda4d7e7 | 152 | #if defined(TARGET_LPC11UXX) |
Kovalev_D | 130:1421dda4d7e7 | 153 | |
Kovalev_D | 130:1421dda4d7e7 | 154 | int IAP::write_eeprom( char *source_addr, char *target_addr, int size ) |
Kovalev_D | 130:1421dda4d7e7 | 155 | { |
Kovalev_D | 130:1421dda4d7e7 | 156 | IAP_command[ 0 ] = IAPCommand_EEPROM_Write; |
Kovalev_D | 130:1421dda4d7e7 | 157 | 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. |
Kovalev_D | 130:1421dda4d7e7 | 158 | 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. |
Kovalev_D | 130:1421dda4d7e7 | 159 | IAP_command[ 3 ] = size; // Number of bytes to be written. Should be 256 | 512 | 1024 | 4096. |
Kovalev_D | 130:1421dda4d7e7 | 160 | IAP_command[ 4 ] = cclk_kHz; // CPU Clock Frequency (CCLK) in kHz. |
Kovalev_D | 130:1421dda4d7e7 | 161 | |
Kovalev_D | 130:1421dda4d7e7 | 162 | iap_entry( IAP_command, IAP_result ); |
Kovalev_D | 130:1421dda4d7e7 | 163 | |
Kovalev_D | 130:1421dda4d7e7 | 164 | return ( (int)IAP_result[ 0 ] ); |
Kovalev_D | 130:1421dda4d7e7 | 165 | } |
Kovalev_D | 130:1421dda4d7e7 | 166 | |
Kovalev_D | 130:1421dda4d7e7 | 167 | int IAP::read_eeprom( char *source_addr, char *target_addr, int size ) |
Kovalev_D | 130:1421dda4d7e7 | 168 | { |
Kovalev_D | 130:1421dda4d7e7 | 169 | IAP_command[ 0 ] = IAPCommand_EEPROM_Read; |
Kovalev_D | 130:1421dda4d7e7 | 170 | 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. |
Kovalev_D | 130:1421dda4d7e7 | 171 | 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. |
Kovalev_D | 130:1421dda4d7e7 | 172 | IAP_command[ 3 ] = size; // Number of bytes to be written. Should be 256 | 512 | 1024 | 4096. |
Kovalev_D | 130:1421dda4d7e7 | 173 | IAP_command[ 4 ] = cclk_kHz; // CPU Clock Frequency (CCLK) in kHz. |
Kovalev_D | 130:1421dda4d7e7 | 174 | |
Kovalev_D | 130:1421dda4d7e7 | 175 | iap_entry( IAP_command, IAP_result ); |
Kovalev_D | 130:1421dda4d7e7 | 176 | |
Kovalev_D | 130:1421dda4d7e7 | 177 | return ( (int)IAP_result[ 0 ] ); |
Kovalev_D | 130:1421dda4d7e7 | 178 | } |
Kovalev_D | 130:1421dda4d7e7 | 179 | |
Kovalev_D | 130:1421dda4d7e7 | 180 | #elif defined(TARGET_LPC81X) || defined(TARGET_LPC82X) |
Kovalev_D | 130:1421dda4d7e7 | 181 | |
Kovalev_D | 130:1421dda4d7e7 | 182 | int IAP::erase_page( int start, int end ) |
Kovalev_D | 130:1421dda4d7e7 | 183 | { |
Kovalev_D | 130:1421dda4d7e7 | 184 | IAP_command[ 0 ] = IAPCommand_Erase_page; |
Kovalev_D | 130:1421dda4d7e7 | 185 | IAP_command[ 1 ] = (unsigned int)start; // Start Sector Number |
Kovalev_D | 130:1421dda4d7e7 | 186 | IAP_command[ 2 ] = (unsigned int)end; // End Sector Number (should be greater than or equal to start sector number) |
Kovalev_D | 130:1421dda4d7e7 | 187 | IAP_command[ 3 ] = cclk_kHz; // CPU Clock Frequency (CCLK) in kHz |
Kovalev_D | 130:1421dda4d7e7 | 188 | |
Kovalev_D | 130:1421dda4d7e7 | 189 | iap_entry( IAP_command, IAP_result ); |
Kovalev_D | 130:1421dda4d7e7 | 190 | |
Kovalev_D | 130:1421dda4d7e7 | 191 | return ( (int)IAP_result[ 0 ] ); |
Kovalev_D | 130:1421dda4d7e7 | 192 | } |
Kovalev_D | 130:1421dda4d7e7 | 193 | |
Kovalev_D | 130:1421dda4d7e7 | 194 | #endif |