Dmitry Kovalev
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LGstaandart
forkd
Fork of LG2 by
IAP.cpp
- Committer:
- Kovalev_D
- Date:
- 2016-04-12
- Revision:
- 130:1421dda4d7e7
File content as of revision 130:1421dda4d7e7:
#include "mbed.h" #include "IAP.h" #define USER_FLASH_AREA_START_STR( x ) STR( x ) #define STR( x ) #x unsigned char user_area[ USER_FLASH_AREA_SIZE ] __attribute__((section( ".ARM.__at_" USER_FLASH_AREA_START_STR( USER_FLASH_AREA_START ) ), zero_init)); /* * Reserve of flash area is explained by Igor. Please refer next URL * http://mbed.org/users/okano/notebook/iap-in-application-programming-internal-flash-eras/?page=1#comment-271 */ //unsigned char user_area[ size ] __attribute__((section(".ARM.__at_0x78000"), zero_init)); /* * IAP command codes * Table 589. "IAP Command Summary", Chapter 8. "IAP commands", usermanual */ enum command_code { IAPCommand_Prepare_sector_for_write_operation = 50, IAPCommand_Copy_RAM_to_Flash, IAPCommand_Erase_sector, IAPCommand_Blank_check_sector, IAPCommand_Read_part_ID, IAPCommand_Read_Boot_Code_version, IAPCommand_Compare, IAPCommand_Reinvoke_ISP, IAPCommand_Read_device_serial_number, #if defined(TARGET_LPC11UXX) IAPCommand_EEPROM_Write = 61, IAPCommand_EEPROM_Read, #elif defined(TARGET_LPC81X) || defined(TARGET_LPC82X) IAPCommand_Erase_page = 59, #endif }; int IAP::reinvoke_isp( void ) { __disable_irq(); IAP_command[ 0 ] = IAPCommand_Reinvoke_ISP; iap_entry( IAP_command, IAP_result ); return ( (int)IAP_result[ 0 ] ); } /** Read part identification number * * @return device ID * @see read_serial() */ int IAP::read_ID( void ) { IAP_command[ 0 ] = IAPCommand_Read_part_ID; iap_entry( IAP_command, IAP_result ); // return ( (int)IAP_result[ 0 ] ); return ( (int)IAP_result[ 1 ] ); // to return the number itself (this command always returns CMD_SUCCESS) } int *IAP::read_serial( void ) { IAP_command[ 0 ] = IAPCommand_Read_device_serial_number; iap_entry( IAP_command, IAP_result ); // return ( (int)IAP_result[ 0 ] ); return ( (int *)&IAP_result[ 1 ] ); // to return the number itself (this command always returns CMD_SUCCESS) } int IAP::blank_check( int start, int end ) { IAP_command[ 0 ] = IAPCommand_Blank_check_sector; IAP_command[ 1 ] = (unsigned int)start; // Start Sector Number IAP_command[ 2 ] = (unsigned int)end; // End Sector Number (should be greater than or equal to start sector number) iap_entry( IAP_command, IAP_result ); return ( (int)IAP_result[ 0 ] ); } int IAP::erase( int start, int end ) { IAP_command[ 0 ] = IAPCommand_Erase_sector; IAP_command[ 1 ] = (unsigned int)start; // Start Sector Number IAP_command[ 2 ] = (unsigned int)end; // End Sector Number (should be greater than or equal to start sector number) IAP_command[ 3 ] = cclk_kHz; // CPU Clock Frequency (CCLK) in kHz iap_entry( IAP_command, IAP_result ); return ( (int)IAP_result[ 0 ] ); } int IAP::prepare( int start, int end ) { IAP_command[ 0 ] = IAPCommand_Prepare_sector_for_write_operation; IAP_command[ 1 ] = (unsigned int)start; // Start Sector Number IAP_command[ 2 ] = (unsigned int)end; // End Sector Number (should be greater than or equal to start sector number). iap_entry( IAP_command, IAP_result ); return ( (int)IAP_result[ 0 ] ); } int IAP::write( char *source_addr, char *target_addr, int size ) { IAP_command[ 0 ] = IAPCommand_Copy_RAM_to_Flash; 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. 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. IAP_command[ 3 ] = size; // Number of bytes to be written. Should be 256 | 512 | 1024 | 4096. IAP_command[ 4 ] = cclk_kHz; // CPU Clock Frequency (CCLK) in kHz. iap_entry( IAP_command, IAP_result ); return ( (int)IAP_result[ 0 ] ); } int IAP::compare( char *source_addr, char *target_addr, int size ) { IAP_command[ 0 ] = IAPCommand_Compare; 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. 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. IAP_command[ 3 ] = size; // Number of bytes to be compared; should be a multiple of 4. iap_entry( IAP_command, IAP_result ); return ( (int)IAP_result[ 0 ] ); } int IAP::read_BootVer(void) { IAP_command[0] = IAPCommand_Read_Boot_Code_version; IAP_result[1] = 0; // not sure if in high or low bits. iap_entry(IAP_command, IAP_result); return ((int)IAP_result[1]); } char * IAP::reserved_flash_area_start( void ) { return ( (char *)USER_FLASH_AREA_START ); } int IAP::reserved_flash_area_size( void ) { return ( USER_FLASH_AREA_SIZE ); } #if defined(TARGET_LPC11UXX) int IAP::write_eeprom( char *source_addr, char *target_addr, int size ) { IAP_command[ 0 ] = IAPCommand_EEPROM_Write; 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. 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. IAP_command[ 3 ] = size; // Number of bytes to be written. Should be 256 | 512 | 1024 | 4096. IAP_command[ 4 ] = cclk_kHz; // CPU Clock Frequency (CCLK) in kHz. iap_entry( IAP_command, IAP_result ); return ( (int)IAP_result[ 0 ] ); } int IAP::read_eeprom( char *source_addr, char *target_addr, int size ) { IAP_command[ 0 ] = IAPCommand_EEPROM_Read; 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. 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. IAP_command[ 3 ] = size; // Number of bytes to be written. Should be 256 | 512 | 1024 | 4096. IAP_command[ 4 ] = cclk_kHz; // CPU Clock Frequency (CCLK) in kHz. iap_entry( IAP_command, IAP_result ); return ( (int)IAP_result[ 0 ] ); } #elif defined(TARGET_LPC81X) || defined(TARGET_LPC82X) int IAP::erase_page( int start, int end ) { IAP_command[ 0 ] = IAPCommand_Erase_page; IAP_command[ 1 ] = (unsigned int)start; // Start Sector Number IAP_command[ 2 ] = (unsigned int)end; // End Sector Number (should be greater than or equal to start sector number) IAP_command[ 3 ] = cclk_kHz; // CPU Clock Frequency (CCLK) in kHz iap_entry( IAP_command, IAP_result ); return ( (int)IAP_result[ 0 ] ); } #endif