Sample code for how to erase/write LPC1768, LPC11U24, LPC1114, LPC812 and LPC824 internal flash memory. This program uses IAP call of MCU's ROM routines. The IAP library also supports read/write of EEPROM in LPC11U24.
Sample code for how to erase/write LPC1768, LPC11U24, LPC1114, LPC812 and LPC824 internal flash memory. This program uses IAP call of MCU's ROM routines.
No filesystem interface available. This program is just an interface to flash erasing and writing. User need manage where to store the data in the flash area.
This IAP library supports read/write of EEPROM in LPC11U24.
More information available in
http://mbed.org/users/okano/notebook/iap-in-application-programming-internal-flash-eras/
IAP.h
- Committer:
- okano
- Date:
- 2010-03-12
- Revision:
- 0:b802bd2f4cc9
File content as of revision 0:b802bd2f4cc9:
/** IAP : internal Flash memory access library * * The internal Flash memory access is described in the LPC1768 usermanual. * http://www.nxp.com/documents/user_manual/UM10360.pdf * * Chapter 2: "LPC17xx Memory map" * Chapter 32: "LPC17xx Flash memory interface and programming" * refering Rev. 01 - 4 January 2010 * * Released under the MIT License: http://mbed.org/license/mit * * revision 1.0 09-Mar-2010 1st release * revision 1.1 12-Mar-2010 chaged: to make possible to reserve flash area for user * it can be set by USER_FLASH_AREA_START and USER_FLASH_AREA_SIZE in IAP.h */ #ifndef MBED_IAP #define MBED_IAP #include "mbed.h" #define USER_FLASH_AREA_START FLASH_SECTOR_29 #define USER_FLASH_AREA_SIZE (FLASH_SECTOR_SIZE_16_TO_29 * 1) /* * memory map information is available in next URL also. * http://mbed.org/projects/libraries/svn/mbed/trunk/LPC1768/LPC17xx.h */ /** Table for start adress of sectors * * LPC1768 internal flash memory sector numbers and addresses * * LPC1768 flash memory are and sector number/size * Table 568 "Sectors in a LPC17xx device", Section 5. "Sector numbers", usermanual * * 0x00000000 - 0x0007FFFF flash (29 sectors) * * Sector0: 0x00000000 - 0x00000FFF 4K * Sector1: 0x00001000 - 0x00001FFF 4K * Sector2: 0x00002000 - 0x00002FFF 4K * Sector3: 0x00003000 - 0x00003FFF 4K * Sector4: 0x00004000 - 0x00004FFF 4K * Sector5: 0x00005000 - 0x00005FFF 4K * Sector6: 0x00006000 - 0x00006FFF 4K * Sector7: 0x00007000 - 0x00007FFF 4K * Sector8: 0x00008000 - 0x00008FFF 4K * Sector9: 0x00009000 - 0x00009FFF 4K * Sector10: 0x0000A000 - 0x0000AFFF 4K * Sector11: 0x0000B000 - 0x0000BFFF 4K * Sector12: 0x0000C000 - 0x0000CFFF 4K * Sector13: 0x0000D000 - 0x0000DFFF 4K * Sector14: 0x0000E000 - 0x0000EFFF 4K * Sector15: 0x0000F000 - 0x0000FFFF 4K * * Sector16: 0x00010000 - 0x00017FFF 32K * Sector17: 0x00018000 - 0x0001FFFF 32K * Sector18: 0x00020000 - 0x00027FFF 32K * Sector19: 0x00028000 - 0x0002FFFF 32K * Sector20: 0x00030000 - 0x00037FFF 32K * Sector21: 0x00038000 - 0x0003FFFF 32K * Sector22: 0x00040000 - 0x00047FFF 32K * Sector23: 0x00048000 - 0x0004FFFF 32K * Sector24: 0x00050000 - 0x00057FFF 32K * Sector25: 0x00058000 - 0x0005FFFF 32K * Sector26: 0x00060000 - 0x00067FFF 32K * Sector27: 0x00068000 - 0x0006FFFF 32K * Sector28: 0x00070000 - 0x00077FFF 32K * Sector29: 0x00078000 - 0x0007FFFF 32K */ #define FLASH_SECTOR_0 0x00000000 #define FLASH_SECTOR_1 0x00001000 #define FLASH_SECTOR_2 0x00002000 #define FLASH_SECTOR_3 0x00003000 #define FLASH_SECTOR_4 0x00004000 #define FLASH_SECTOR_5 0x00005000 #define FLASH_SECTOR_6 0x00006000 #define FLASH_SECTOR_7 0x00007000 #define FLASH_SECTOR_8 0x00008000 #define FLASH_SECTOR_9 0x00009000 #define FLASH_SECTOR_10 0x0000A000 #define FLASH_SECTOR_11 0x0000B000 #define FLASH_SECTOR_12 0x0000C000 #define FLASH_SECTOR_13 0x0000D000 #define FLASH_SECTOR_14 0x0000E000 #define FLASH_SECTOR_15 0x0000F000 #define FLASH_SECTOR_16 0x00010000 #define FLASH_SECTOR_17 0x00018000 #define FLASH_SECTOR_18 0x00020000 #define FLASH_SECTOR_19 0x00028000 #define FLASH_SECTOR_20 0x00030000 #define FLASH_SECTOR_21 0x00038000 #define FLASH_SECTOR_22 0x00040000 #define FLASH_SECTOR_23 0x00048000 #define FLASH_SECTOR_24 0x00050000 #define FLASH_SECTOR_25 0x00058000 #define FLASH_SECTOR_26 0x00060000 #define FLASH_SECTOR_27 0x00068000 #define FLASH_SECTOR_28 0x00070000 #define FLASH_SECTOR_29 0x00078000 #define FLASH_SECTOR_SIZE_0_TO_15 ( 4 * 1024) #define FLASH_SECTOR_SIZE_16_TO_29 (32 * 1024) static char * sector_start_adress[] = { (char *)FLASH_SECTOR_0, (char *)FLASH_SECTOR_1, (char *)FLASH_SECTOR_2, (char *)FLASH_SECTOR_3, (char *)FLASH_SECTOR_4, (char *)FLASH_SECTOR_5, (char *)FLASH_SECTOR_6, (char *)FLASH_SECTOR_7, (char *)FLASH_SECTOR_8, (char *)FLASH_SECTOR_9, (char *)FLASH_SECTOR_10, (char *)FLASH_SECTOR_11, (char *)FLASH_SECTOR_12, (char *)FLASH_SECTOR_13, (char *)FLASH_SECTOR_14, (char *)FLASH_SECTOR_15, (char *)FLASH_SECTOR_16, (char *)FLASH_SECTOR_17, (char *)FLASH_SECTOR_18, (char *)FLASH_SECTOR_19, (char *)FLASH_SECTOR_20, (char *)FLASH_SECTOR_21, (char *)FLASH_SECTOR_22, (char *)FLASH_SECTOR_23, (char *)FLASH_SECTOR_24, (char *)FLASH_SECTOR_25, (char *)FLASH_SECTOR_26, (char *)FLASH_SECTOR_27, (char *)FLASH_SECTOR_28, (char *)FLASH_SECTOR_29 }; /** Error code by IAP routine * * Table 588 "ISP Return Codes Summary", Section 7.15 "ISP Return Codes", usermanual */ enum error_code { CMD_SUCCESS, INVALID_COMMAND, SRC_ADDR_ERROR, DST_ADDR_ERROR, SRC_ADDR_NOT_MAPPED, DST_ADDR_NOT_MAPPED, COUNT_ERROR, INVALID_SECTOR, SECTOR_NOT_BLANK, SECTOR_NOT_PREPARED_FOR_WRITE_OPERATION, COMPARE_ERROR, BUSY, PARAM_ERROR, ADDR_ERROR, ADDR_NOT_MAPPED, CMD_LOCKED, INVALID_CODE, INVALID_BAUD_RATE, INVALID_STOP_BIT, CODE_READ_PROTECTION_ENABLED }; /* * IAP routine entry * * Chapter 8. "IAP commands", usermanual */ #define IAP_LOCATION 0x1fff1ff1 typedef void (*IAP_call)(unsigned int [], unsigned int []); /** IAP class * * Interface for internal flash memory access */ class IAP { public: /* * SystemCoreClock ??? : * http://mbed.org/forum/mbed/topic/229/ * http://mbed.org/users/simon/programs/SystemCoreClock/16mhsh/ */ /** Constructor for IAP * */ IAP() : iap_entry( reinterpret_cast<IAP_call>(IAP_LOCATION) ), cclk_kHz( SystemCoreClock / 1000 ) {} int read_ID( void ); int read_serial( void ); int blank_check( int start, int end ); int erase( int start, int end ); int prepare( int start, int end ); int write( char *source_addr, char *target_addr, int size ); int compare( char *source_addr, char *target_addr, int size ); char *reserved_flash_area_start( void ); int reserved_flash_area_size( void ); private: IAP_call iap_entry; unsigned int IAP_command[ 5 ]; unsigned int IAP_result[ 5 ]; int cclk_kHz; //int cpu_clock( void ); } ; #endif // #ifndef MBED_IAP