Hotboards_eeprom.h

00001 /*
00002   Hotboards_eeprom.h - Driver to control serial (spi) eeprom memories, The memories are
00003   compatibles amount the manufactures Microchip, Atmel and ST, and of course you can control
00004   Hotboards eeprom board (http://hotboards.org)
00005   Created by Diego Perez, January 16, 2016.
00006   Released into the public domain.
00007   
00008   Density:   1Kbit   | 2Kbit   | 4Kbit   | 8Kbit   | 16Kbit  | 32Kbit  | 64Kbit  | 128Kbit | 256Kbit | 512Kbit | 1 Mbit
00009   Part:      25xx010 | 25xx020 | 25xx040 | 25xx080 | 25xx160 | 25xx320 | 25xx640 | 25xx128 | 25xx256 | 25xx512 | 25xx1024
00010   Page/Byte: 16      | 16      | 16      | 16(32)  | 16(32)  | 32      | 32      | 64      | 64      | 128     | 256
00011   Addr/Bits: 7       | 8       | 9       | 16      | 16      | 16      | 16      | 16      | 16      | 16 
00012 */
00013 
00014 #ifndef Hotboards_eeprom_h
00015 #define Hotboards_eeprom_h
00016 
00017 #include "mbed.h"
00018 
00019 //EEPROM size in kilobits. EEPROM part numbers are usually designated in k-bits.
00020 typedef enum
00021 {
00022     HT_EEPROM25xx_1Kb = 0,
00023     HT_EEPROM25xx_2Kb,
00024     HT_EEPROM25xx_4Kb,
00025     HT_EEPROM25xx_8Kb,
00026     HT_EEPROM25xx_16Kb,
00027     HT_EEPROM25xx_32Kb,
00028     HT_EEPROM25xx_64Kb,
00029     HT_EEPROM25xx_128Kb,
00030     HT_EEPROM25xx_256Kb,
00031     HT_EEPROM25xx_512Kb,
00032     HT_EEPROM25xx_1Mb   
00033 }_eEEPROM;
00034 
00035 class Hotboards_eeprom
00036 {
00037     public :
00038         Hotboards_eeprom( SPI &spi, PinName cs, uint8_t type );
00039         void init( void );
00040         void write( uint32_t address, uint8_t data );
00041         void write( uint32_t address, uint8_t *data, uint16_t size );
00042         uint8_t read( uint32_t address );
00043         void read( uint32_t address, uint8_t *data, uint16_t size );
00044     
00045     protected :
00046         void sendAddress( uint8_t cmd, uint32_t address );
00047         void writePage( uint32_t address, uint8_t *data, uint16_t size );
00048     
00049         SPI _spi;    
00050         DigitalOut _cs_pin;
00051         uint8_t _type;
00052         uint16_t _page;
00053         uint32_t _density;
00054 };
00055 
00056 #endif