shortened
Dependents: CDMS_CODE CDMS_CODE_FM_28JAN2017 CDMS_CODE_FM_28JAN2017 CDMS_FM_21JUL2017_EEPROM_JOEL ... more
Fork of eeprom by
eeprom.h
- Committer:
- chaithanyarss
- Date:
- 2017-01-04
- Revision:
- 4:0c5b1545007c
- Parent:
- 3:925096a4c7f0
- Child:
- 5:b65b74065b7f
File content as of revision 4:0c5b1545007c:
#ifndef __EEPROM__H_ #define __EEPROM__H_ // Includes #include <string> #include "mbed.h" // Defines #define EEPROM_Address 0xa0 #define EEPROM_NoError 0x00 #define EEPROM_BadAddress 0x01 #define EEPROM_I2cError 0x02 #define EEPROM_ParamError 0x03 #define EEPROM_OutOfRange 0x04 #define EEPROM_MallocError 0x05 #define EEPROM_MaxError 6 static std::string _ErrorMessageEEPROM[EEPROM_MaxError] = { "", "Bad chip address", "I2C error (nack)", "Invalid parameter", "Data address out of range", "Memory allocation error" }; /** EEPROM Class */ class EEPROM { public: enum TypeEeprom {T24C512=65536} Type; /** * Constructor, initialize the eeprom on i2c interface. * @param sda sda i2c pin (PinName) * @param scl scl i2c pin (PinName) * @param address eeprom address, according to eeprom type (uint8_t) * @param type eeprom type (TypeEeprom) * @return none */ EEPROM(PinName sda, PinName scl, uint8_t address, TypeEeprom type); /** * Random read long * @param address start address (uint32_t) * @param data long to read (int32_t&) * @return none */ void read(uint32_t address, int32_t& data); /** * Sequential read byte * @param address start address (uint32_t) * @param data bytes array to read (int8_t[]&) * @param size number of bytes to read (uint32_t) * @return none */ void read(uint32_t address, int8_t *data, uint32_t size); /** * Write long * @param address start address (uint32_t) * @param data long to write (int32_t) * @return none */ void write(uint32_t address, int32_t data); /** * Write array of bytes (use the page mode) * @param address start address (uint32_t) * @param data bytes array to write (int8_t[]) * @param size number of bytes to write (uint32_t) * @return none */ void write(uint32_t address, int8_t data[], uint32_t size); /** * Wait eeprom ready * @param none * @return none */ void ready(void); /** * Get eeprom size in bytes * @param none * @return size in bytes (uint32_t) */ uint32_t getSize(void); /** * Get eeprom name * @param none * @return name (const char*) */ const char* getName(void); /** * Clear eeprom (write with 0) * @param none * @return none */ void clear(void); /** * Get the current error number (EEPROM_NoError if no error) * @param none * @return none */ uint8_t getError(void); /** * Get current error message * @param none * @return current error message(std::string) */ std::string getErrorMessage(void) { return(_ErrorMessageEEPROM[_errnum]); } //---------- local variables ---------- private: I2C _i2c; // Local i2c communication interface instance int _address; // Local i2c address uint8_t _errnum; // Error number TypeEeprom _type; // EEPROM type uint8_t _page_write; // Page write size uint8_t _page_number; // Number of page uint32_t _size; // Size in bytes bool checkAddress(uint32_t address); // Check address range static const char * const _name[]; // eeprom name //------------------------------------- }; #endif