nes-proj/platform/mbxxx/dev/mems.h

/**
 * \addtogroup mbxxx-platform
 *
 * @{
 */
/******************** (C) COPYRIGHT 2009 STMicroelectronics ********************
* File Name          : mems.h
* Author             : MCD Application Team
* Version            : V1.0
* Date               : January 2010
* Description        : header file for mems driver
********************************************************************************
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/

#ifndef MEMS_H_
#define MEMS_H_

/* Define --------------------------------------------------------------------*/
#include "mems_regs.h"

/* Define --------------------------------------------------------------------*/
// Sensitivity values in mg/digit
#define HIGH_RANGE_SENSITIVITY  72
#define LOW_RANGE_SENSITIVITY  18

#define MEMS_LOW_RANGE   0
#define MEMS_HIGH_RANGE  1

/* Typedef -------------------------------------------------------------------*/
/* Mems data type: three acceleration values each related to a specific direction
   Watch out: only lower data values (e.g. those terminated by the _l) are 
   currently used by the device */

typedef struct {
  int8_t outx_l;
  int8_t outx_h;
  int8_t outy_l;
  int8_t outy_h;
  int8_t outz_l;
  int8_t outz_h;
} t_mems_data;

/* Functions -----------------------------------------------------------------*/

/* Mems Initialization function */
uint8_t MEMS_Init(void);

uint8_t MEMS_On(void);
uint8_t MEMS_Off(void);
uint8_t MEMS_SetFullScale(boolean range);
boolean MEMS_GetFullScale(void);
uint8_t MEMS_Read_Reg (uint8_t slave_addr, uint8_t reg_addr, uint8_t *pBuffer,
		       uint8_t NoOfBytes);
uint8_t MEMS_Write_Reg (uint8_t slave_addr, uint8_t reg_addr,
			uint8_t reg_value);

#endif /*MEMS_H_ */

/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/
/** @} */