AMiRo-OS

/*

AMiRo-LLD is a compilation of low-level hardware drivers for the Autonomous Mini Robot (AMiRo) platform.

Copyright (C) 2016..2020  Thomas Schöpping et al.

This program is free software: you can redistribute it and/or modify

it under the terms of the GNU Lesser General Public License as published by

the Free Software Foundation, either version 3 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License

along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

/**

 * @file    alld_AT24C01B.h

 * @brief   EEPROM macros and structures.

 *

 * @addtogroup lld_eeprom

 * @{

 */

#ifndef AMIROLLD_AT24C01B_H

#define AMIROLLD_AT24C01B_H

#include <amiro-lld.h>

/******************************************************************************/

/* CONSTANTS                                                                  */

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/**

 * @brief Memory size of the EEPROM in bits.

 */

#define AT24C01B_LLD_SIZE_BITS              1024

/**

 * @brief Memory size of the EEPROM in bytes

 */

#define AT24C01B_LLD_SIZE_BYTES             128

/**

 * @brief Size of a page in bytes

 */

#define AT24C01B_LLD_PAGE_SIZE_BYTES        8

/**

 * @brief  Time in microseconds a write operation takes to complete (I2C will not respond).

 * @note   The system should wait slightly longer.

 */

#define AT24C01B_LLD_WRITECYCLETIME_US      5000

/**

 * @brief Maximum I2C frequency.

 */

#define AT24C01B_LLD_I2C_MAXFREQUENCY       400000

/**

 * @brief Maximum I2C frequency at 5V.

 */

#define AT24C01B_LLD_I2C_MAXFREQUENCY_5V    1000000

/******************************************************************************/

/* SETTINGS                                                                   */

/******************************************************************************/

/******************************************************************************/

/* CHECKS                                                                     */

/******************************************************************************/

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/* DATA STRUCTURES AND TYPES                                                  */

/******************************************************************************/

/**

 * @brief The AT24C01B driver struct

 */

typedef struct {

  apalI2CDriver_t* i2cd;  /**< @brief The I2C Driver */

  apalI2Caddr_t addr;     /**< @brief The address of the AT24C01B for I2C communication, which is defined by the wiring of the A0, A1, A2 pins */

} AT24C01BDriver;

/**

 * @brief Bitmasks for the I2C address, including the wiring of the A0, A1, A2 pins.

 */

enum {

  AT24C01B_LLD_I2C_ADDR_FIXED       = 0x0050u,

  AT24C01B_LLD_I2C_ADDR_A0          = 0x0001u,

  AT24C01B_LLD_I2C_ADDR_A1          = 0x0002u,

  AT24C01B_LLD_I2C_ADDR_A2          = 0x0004u,

};

/******************************************************************************/

/* MACROS                                                                     */

/******************************************************************************/

/******************************************************************************/

/* EXTERN DECLARATIONS                                                        */

/******************************************************************************/

#ifdef __cplusplus

extern "C" {

#endif

  apalExitStatus_t at24c01b_lld_poll_ack(const AT24C01BDriver* const at24c01b, const apalTime_t timeout);

  apalExitStatus_t at24c01b_lld_read_current_address(const AT24C01BDriver* const at24c01b, uint8_t* const data, const uint8_t num, const apalTime_t timeout);

  apalExitStatus_t at24c01b_lld_read(const AT24C01BDriver* const at24c01b, const uint8_t addr, uint8_t* const data, const uint8_t num, const apalTime_t timeout);

  apalExitStatus_t at24c01b_lld_write_byte(const AT24C01BDriver* const at24c01b, const uint8_t addr, const uint8_t data, const apalTime_t timeout);

  apalExitStatus_t at24c01b_lld_write_page(const AT24C01BDriver* const at24c01b, const uint8_t addr, const uint8_t* const data, const uint8_t num, const apalTime_t timeout);

#ifdef __cplusplus

}

#endif

/******************************************************************************/

/* INLINE FUNCTIONS                                                           */

/******************************************************************************/

#endif /* AMIROLLD_AT24C01BN_H */

/** @} */