EEPROM.h

00001 //**********************
00002 // EEPROM.h for TG-LPC11U35-501
00003 //
00004 // (C)Copyright 2014 All rights reserved by Y.Onodera
00005 // http://einstlab.web.fc2.com
00006 //**********************
00007 
00008 #ifndef __ROMAPI_11U35_H_
00009 #define __ROMAPI_11U35_H_
00010 
00011 #include "mbed.h"
00012 
00013 typedef enum {
00014     CMD_SUCCESS = 0,            // Command is executed successfully.
00015     INVALID_COMMAND = 1,        // Invalid command.
00016     SRC_ADDR_ERROR = 2,         // Source address is not on a word boundary.
00017     DST_ADDR_ERROR = 3,         // Destination address is not on a correct boundary.
00018     SRC_ADDR_NOT_MAPPED = 4,    // Source address is not mapped in the memory map.
00019     DST_ADDR_NOT_MAPPED = 5,    // Destination address is not mapped in the memory map. 
00020     COUNT_ERROR = 6,            // Byte count is not multiple of 4 or is not a permitted value.
00021     INVALID_SECTOR = 7,         // Sector number is invalid.
00022     SECTOR_NOT_BLANK = 8,       // Sector is not blank.
00023     SECTOR_NOT_PREPARED_FOR_WRITE_OPERATION = 9,    // Command to prepare sector for write operation was not executed.
00024     COMPARE_ERROR =10,          // Source and destination data is not same.
00025     BUSY = 11                   // flash programming hardware interface is busy.
00026 } IAPstatus;
00027 
00028 
00029 typedef enum {
00030     Prepare_sector = 50,
00031     Copy_RAM_flash = 51,
00032     Erase_sector = 52,
00033     Blank_check_sector = 53,
00034     Read_Part_ID = 54,
00035     Read_Boot_version = 55,
00036     Compare = 56,
00037     Reinvoke_ISP = 57,
00038     Read_UID = 58,
00039     Erase_page = 59,
00040     EEPROM_Write = 61,
00041     EEPROM_Read = 62
00042 } IAPcommand;
00043 
00044 
00045 #define IAP_LOCATION (0x1FFF1FF1UL)
00046 typedef void (*IAP)(unsigned int[], unsigned int[]);
00047 
00048 
00049 class EEPROM {
00050 public:
00051     EEPROM() : iap_entry( reinterpret_cast<IAP>(IAP_LOCATION) ), cclk_kHz( SystemCoreClock / 1000 ) {}
00052 
00053     int write( unsigned int EEPROM_addr, char *RAM_addr, unsigned int n );
00054     int read( unsigned int EEPROM_addr, char *RAM_addr, unsigned int n );
00055     int put( unsigned int EEPROM_addr, char data );
00056     char get( unsigned int EEPROM_addr );
00057  
00058 private:
00059     IAP             iap_entry;
00060     unsigned int    command[5];
00061     unsigned int    status[4];
00062     char            dat[1];
00063     int             cclk_kHz;
00064 };
00065 
00066 
00067 #endif /* __ROMAPI_11U35_H_ */