41 lines
1.7 KiB
C
41 lines
1.7 KiB
C
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/***************************************************************************//**
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* @file dev_accel.h
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* @brief Accelerometer driver of RT-Thread RTOS for EFM32
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* COPYRIGHT (C) 2011, RT-Thread Development Team
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* @author onelife
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* @version 0.4 beta
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*******************************************************************************
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* @section License
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* The license and distribution terms for this file may be found in the file
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* LICENSE in this distribution or at http://www.rt-thread.org/license/LICENSE
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*******************************************************************************
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* @section Change Logs
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* Date Author Notes
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* 2011-07-13 onelife Initial creation for using EFM32 ADC module to
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* interface the Freescale MMA7361L
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******************************************************************************/
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#ifndef __DEV_ACCEL_H__
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#define __DEV_ACCEL_H__
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/* Includes ------------------------------------------------------------------*/
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/* Exported types ------------------------------------------------------------*/
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struct efm32_accel_result_t
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{
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rt_uint32_t x;
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rt_uint32_t y;
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rt_uint32_t z;
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};
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/* Exported constants --------------------------------------------------------*/
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/* Exported macro ------------------------------------------------------------*/
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#define ACCEL_X_ADC_CH ADC_SCANCTRL_INPUTMASK_CH2
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#define ACCEL_Y_ADC_CH ADC_SCANCTRL_INPUTMASK_CH3
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#define ACCEL_Z_ADC_CH ADC_SCANCTRL_INPUTMASK_CH4
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/* Exported functions ------------------------------------------------------- */
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rt_err_t efm_accel_get_data(struct efm32_accel_result_t *data);
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rt_err_t efm_accel_auto_zero(rt_tick_t period);
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rt_err_t efm_accel_init(void);
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#endif /*__DEV_ACCEL_H__ */
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