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570 lines
22 KiB
C
570 lines
22 KiB
C
/**
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******************************************************************************
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* @file bma2x2_user.c
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* @author William Xu
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* @version V1.0.0
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* @date 21-May-2015
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* @brief bma2x2 sensor control demo.
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******************************************************************************
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* UNPUBLISHED PROPRIETARY SOURCE CODE
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* Copyright (c) 2016 MXCHIP Inc.
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*
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* The contents of this file may not be disclosed to third parties, copied or
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* duplicated in any form, in whole or in part, without the prior written
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* permission of MXCHIP Corporation.
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******************************************************************************
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*/
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/*---------------------------------------------------------------------------*/
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/* Includes*/
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/*---------------------------------------------------------------------------*/
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#include "bma2x2.h"
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#include "bma2x2_user.h"
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#define bma2x2_user_log(M, ...) custom_log("BMA2x2_USER", M, ##__VA_ARGS__)
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#define bma2x2_user_log_trace() custom_log_trace("BMA2x2_USER")
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#define BMA2x2_API
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/* I2C device */
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mico_i2c_device_t bma2x2_i2c_device = {
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BMA2x2_I2C_DEVICE, BMA2x2_I2C_ADDR1, I2C_ADDRESS_WIDTH_7BIT, I2C_STANDARD_SPEED_MODE
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};
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/*----------------------------------------------------------------------------*
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* The following functions are used for reading and writing of
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* sensor data using I2C or SPI communication
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*----------------------------------------------------------------------------*/
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#ifdef BMA2x2_API
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/* \Brief: The function is used as I2C bus read
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* \Return : Status of the I2C read
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* \param dev_addr : The device address of the sensor
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* \param reg_addr : Address of the first register, will data is going to be read
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* \param reg_data : This data read from the sensor, which is hold in an array
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* \param cnt : The no of byte of data to be read
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*/
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s8 BMA2x2_I2C_bus_read(u8 dev_addr, u8 reg_addr, u8 *reg_data, u8 cnt);
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/* \Brief: The function is used as I2C bus write
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* \Return : Status of the I2C write
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* \param dev_addr : The device address of the sensor
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* \param reg_addr : Address of the first register, will data is going to be written
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* \param reg_data : It is a value hold in the array,
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* will be used for write the value into the register
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* \param cnt : The no of byte of data to be write
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*/
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s8 BMA2x2_I2C_bus_write(u8 dev_addr, u8 reg_addr, u8 *reg_data, u8 cnt);
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/* \Brief: The function is used as SPI bus write
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* \Return : Status of the SPI write
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* \param dev_addr : The device address of the sensor
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* \param reg_addr : Address of the first register, will data is going to be written
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* \param reg_data : It is a value hold in the array,
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* will be used for write the value into the register
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* \param cnt : The no of byte of data to be write
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*/
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s8 BMA2x2_SPI_bus_write(u8 dev_addr, u8 reg_addr, u8 *reg_data, u8 cnt);
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/* \Brief: The function is used as SPI bus read
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* \Return : Status of the SPI read
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* \param dev_addr : The device address of the sensor
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* \param reg_addr : Address of the first register, will data is going to be read
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* \param reg_data : This data read from the sensor, which is hold in an array
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* \param cnt : The no of byte of data to be read */
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s8 BMA2x2_SPI_bus_read(u8 dev_addr, u8 reg_addr, u8 *reg_data, u8 cnt);
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/*
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* \Brief: SPI/I2C init routine
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*/
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s8 BMA2x2_I2C_routine(void);
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s8 BMA2x2_SPI_routine(void);
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#endif
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/********************End of I2C/SPI function declarations***********************/
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/* Brief : The delay routine
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* \param : delay in ms
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*/
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void BMA2x2_delay_msek(u32 msek);
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/*!
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* @brief This function is an example for delay
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* @param : None
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* @return : communication result
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*/
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s32 bma2x2_data_readout_template(void);
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/*----------------------------------------------------------------------------*
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* struct bma2x2_t parameters can be accessed by using bma2x2
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* bma2x2_t having the following parameters
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* Bus write function pointer: BMA2x2_WR_FUNC_PTR
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* Bus read function pointer: BMA2x2_RD_FUNC_PTR
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* Burst read function pointer: BMA2x2_BRD_FUNC_PTR
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* Delay function pointer: delay_msec
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* I2C address: dev_addr
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* Chip id of the sensor: chip_id
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*---------------------------------------------------------------------------*/
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struct bma2x2_t bma2x2;
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/*----------------------------------------------------------------------------*
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* V_BMA2x2RESOLUTION_u8R used for selecting the accelerometer resolution
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* 12 bit
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* 14 bit
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* 10 bit
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*----------------------------------------------------------------------------*/
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extern u8 V_BMA2x2RESOLUTION_u8R;
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/* This function is an example for reading sensor data
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* \param: None
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* \return: communication result
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*/
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s32 bma2x2_data_readout_template(void)
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{
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/*Local variables for reading accel x, y and z data*/
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s16 v_accel_x_s16, v_accel_y_s16, v_accel_z_s16 = 0;
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/* bma2x2acc_data structure used to read accel xyz data*/
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struct bma2x2_accel_data sample_xyz;
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/* bma2x2acc_data_temp structure used to read accel xyz and temperature data*/
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struct bma2x2_accel_data_temp sample_xyzt;
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/* Local variable used to assign the bandwidth value*/
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u8 v_bw_value_u8 = 0;
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/* Local variable used to set the bandwidth value*/
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u8 banwid = 0;
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/* status of communication*/
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s32 com_rslt = 0;
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/*********************** START INITIALIZATION ************************
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* Based on the user need configure I2C or SPI interface.
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* It is example code to explain how to use the bma2x2 API*/
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#ifdef BMA2x2_API
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BMA2x2_I2C_routine();
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/*BMA2x2_SPI_routine(); */
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#endif
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/*--------------------------------------------------------------------------*
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* This function used to assign the value/reference of
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* the following parameters
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* I2C address
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* Bus Write
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* Bus read
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* Chip id
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*-------------------------------------------------------------------------*/
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com_rslt = bma2x2_init(&bma2x2);
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/* For initialization it is required to set the mode of
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* the sensor as "NORMAL"
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* NORMAL mode is set from the register 0x11 and 0x12
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* 0x11 -> bit 5,6,7 -> set value as 0
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* 0x12 -> bit 5,6 -> set value as 0
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* data acquisition/read/write is possible in this mode
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* by using the below API able to set the power mode as NORMAL
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* For the Normal/standby/Low power 2 mode Idle time of at least 2us(micro seconds)
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* required for read/write operations*/
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/* Set the power mode as NORMAL*/
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com_rslt += bma2x2_set_power_mode(BMA2x2_MODE_NORMAL);
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/* Note:
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* For the Suspend/Low power1 mode Idle time of at least 450us(micro seconds)
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* required for read/write operations*/
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/************************* END INITIALIZATION *************************/
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/*------------------------------------------------------------------------*
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************************* START GET and SET FUNCTIONS DATA ****************
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*---------------------------------------------------------------------------*/
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/* This API used to Write the bandwidth of the sensor input
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value have to be given
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bandwidth is set from the register 0x10 bits from 1 to 4*/
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v_bw_value_u8 = 0x08;/* set bandwidth of 7.81Hz*/
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com_rslt += bma2x2_set_bw(v_bw_value_u8);
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/* This API used to read back the written value of bandwidth*/
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com_rslt += bma2x2_get_bw(&banwid);
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/*-----------------------------------------------------------------*
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************************* END GET and SET FUNCTIONS ****************
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*-------------------------------------------------------------------*/
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/*------------------------------------------------------------------*
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************************* START READ SENSOR DATA(X,Y and Z axis) ********
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*---------------------------------------------------------------------*/
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com_rslt += bma2x2_read_accel_x(&v_accel_x_s16);/* Read the accel X data*/
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com_rslt += bma2x2_read_accel_y(&v_accel_y_s16);/* Read the accel Y data*/
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com_rslt += bma2x2_read_accel_z(&v_accel_z_s16);/* Read the accel Z data*/
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/* accessing the bma2x2acc_data parameter by using sample_xyz*/
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com_rslt += bma2x2_read_accel_xyz(&sample_xyz);/* Read the accel XYZ data*/
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/* accessing the bma2x2acc_data_temp parameter by using sample_xyzt*/
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com_rslt += bma2x2_read_accel_xyzt(&sample_xyzt);/* Read the accel XYZT data*/
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/*--------------------------------------------------------------------*
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************************* END READ SENSOR DATA(X,Y and Z axis) ************
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*-------------------------------------------------------------------------*/
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/*-----------------------------------------------------------------------*
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************************* START DE-INITIALIZATION ***********************
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*-------------------------------------------------------------------------*/
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/* For de-initialization it is required to set the mode of
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* the sensor as "DEEP SUSPEND"
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* DEEP SUSPEND mode is set from the register 0x11
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* 0x11 -> bit 5 -> set value as 1
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* the device reaches the lowest power consumption only
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* interface selection is kept alive
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* No data acquisition is performed
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* by using the below API able to set the power mode as DEEPSUSPEND*/
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/* Set the power mode as DEEPSUSPEND*/
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com_rslt += bma2x2_set_power_mode(BMA2x2_MODE_DEEP_SUSPEND);
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/*---------------------------------------------------------------------*
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************************* END DE-INITIALIZATION **********************
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*---------------------------------------------------------------------*/
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return com_rslt;
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}
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#ifdef BMA2x2_API
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/*--------------------------------------------------------------------------*
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* The following function is used to map the I2C bus read, write, delay and
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* device address with global structure bma2x2_t
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*-------------------------------------------------------------------------*/
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s8 BMA2x2_I2C_routine(void) {
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/*--------------------------------------------------------------------------*
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* By using bma2x2 the following structure parameter can be accessed
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* Bus write function pointer: BMA2x2_WR_FUNC_PTR
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* Bus read function pointer: BMA2x2_RD_FUNC_PTR
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* Delay function pointer: delay_msec
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* I2C address: dev_addr
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*--------------------------------------------------------------------------*/
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bma2x2.bus_write = BMA2x2_I2C_bus_write;
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bma2x2.bus_read = BMA2x2_I2C_bus_read;
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bma2x2.delay_msec = BMA2x2_delay_msek;
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bma2x2.dev_addr = BMA2x2_I2C_ADDR2;
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return 0;
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}
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/*---------------------------------------------------------------------------*
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* The following function is used to map the SPI bus read, write and delay
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* with global structure bma2x2_t
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// *--------------------------------------------------------------------------*/
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//s8 BMA2x2_SPI_routine(void) {
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///*--------------------------------------------------------------------------*
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// * By using bma2x2 the following structure parameter can be accessed
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// * Bus write function pointer: BMA2x2_WR_FUNC_PTR
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// * Bus read function pointer: BMA2x2_RD_FUNC_PTR
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// * Delay function pointer: delay_msec
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// *--------------------------------------------------------------------------*/
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// bma2x2.bus_write = BMA2x2_SPI_bus_write;
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// bma2x2.bus_read = BMA2x2_SPI_bus_read;
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// bma2x2.delay_msec =BMA2x2_delay_msek;
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// return 0;
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//}
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/************** I2C/SPI buffer length ******/
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#define I2C_BUFFER_LEN 8
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#define SPI_BUFFER_LEN 5
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/*-------------------------------------------------------------------*
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* This is a sample code for read and write the data by using I2C/SPI
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* Use either I2C or SPI based on your need
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*
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*-----------------------------------------------------------------------*/
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/* For configuring the I2C it is required to switch ON
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* SDI, SDO and CLk and also select the device address
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* The following definition of I2C address is used for the following sensors
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* BMA255
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* BMA355
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* BMA280
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* BMA282
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* BMA223
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* BMA254
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* BMA284
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* BMA250E
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* BMA222E
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#define BMA2x2_I2C_ADDR1 0x18
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#define BMA2x2_I2C_ADDR2 0x19
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* The following definition of I2C address is used for the following sensors
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* BMC150
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* BMC056
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* BMC156
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#define BMA2x2_I2C_ADDR3 0x10
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#define BMA2x2_I2C_ADDR4 0x11
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*************************************************************************/
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/* \Brief: The function is used as I2C bus write
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* \Return : Status of the I2C write
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* \param dev_addr : The device address of the sensor
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* \param reg_addr : Address of the first register, will data is going to be written
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* \param reg_data : It is a value hold in the array,
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* will be used for write the value into the register
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* \param cnt : The no of byte of data to be write
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*/
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s8 BMA2x2_I2C_bus_write(u8 dev_addr, u8 reg_addr, u8 *reg_data, u8 cnt)
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{
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mico_i2c_message_t bma2x2_i2c_msg = {NULL, NULL, 0, 0, 0, false};
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s32 iError = 0;
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u8 array[I2C_BUFFER_LEN];
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u8 stringpos = 0;
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array[0] = reg_addr;
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for (stringpos = 0; stringpos < cnt; stringpos++) {
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array[stringpos + 1] = *(reg_data + stringpos);
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}
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/*
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* Please take the below function as your reference for
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* write the data using I2C communication
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* "IERROR = I2C_WRITE_STRING(DEV_ADDR, ARRAY, CNT+1)"
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* add your I2C write function here
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* iError is an return value of I2C read function
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* Please select your valid return value
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* In the driver SUCCESS defined as 0
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* and FAILURE defined as -1
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* Note :
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* This is a full duplex operation,
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* The first read data is discarded, for that extra write operation
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* have to be initiated. For that cnt+1 operation done in the I2C write string function
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* For more information please refer data sheet SPI communication:
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*/
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iError = MicoI2cBuildTxMessage(&bma2x2_i2c_msg, array, cnt + 1, 3);
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iError = MicoI2cTransfer(&bma2x2_i2c_device, &bma2x2_i2c_msg, 1);
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if(0 != iError){
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iError = -1;
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}
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return (s8)iError;
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}
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/* \Brief: The function is used as I2C bus read
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* \Return : Status of the I2C read
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* \param dev_addr : The device address of the sensor
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* \param reg_addr : Address of the first register, will data is going to be read
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* \param reg_data : This data read from the sensor, which is hold in an array
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* \param cnt : The no of byte of data to be read
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*/
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s8 BMA2x2_I2C_bus_read(u8 dev_addr, u8 reg_addr, u8 *reg_data, u8 cnt)
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{
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mico_i2c_message_t bma2x2_i2c_msg = {NULL, NULL, 0, 0, 0, false};
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s32 iError = 0;
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u8 array[I2C_BUFFER_LEN] = {0};
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// u8 stringpos = 0;
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array[0] = reg_addr;
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/* Please take the below function as your reference
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* for read the data using I2C communication
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* add your I2C rad function here.
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* "IERROR = I2C_WRITE_READ_STRING(DEV_ADDR, ARRAY, ARRAY, 1, CNT)"
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* iError is an return value of SPI write function
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* Please select your valid return value
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* In the driver SUCCESS defined as 0
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* and FAILURE defined as -1
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*/
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iError = MicoI2cBuildCombinedMessage(&bma2x2_i2c_msg, array, reg_data, 1, cnt, 3);
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if(0 != iError){
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return (s8)iError;
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}
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iError = MicoI2cTransfer(&bma2x2_i2c_device, &bma2x2_i2c_msg, 1);
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if(0 != iError){
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return (s8)iError;
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}
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// for (stringpos = 0; stringpos < cnt; stringpos++) {
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// *(reg_data + stringpos) = array[stringpos];
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// }
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return (s8)iError;
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}
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/* \Brief: The function is used as SPI bus read
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* \Return : Status of the SPI read
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* \param dev_addr : The device address of the sensor
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* \param reg_addr : Address of the first register, will data is going to be read
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* \param reg_data : This data read from the sensor, which is hold in an array
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* \param cnt : The no of byte of data to be read */
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s8 BMA2x2_SPI_bus_read(u8 dev_addr, u8 reg_addr, u8 *reg_data, u8 cnt)
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{
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s32 iError=0;
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u8 array[SPI_BUFFER_LEN]={0xFF};
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u8 stringpos;
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/* For the SPI mode only 7 bits of register addresses are used.
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The MSB of register address is declared the bit what functionality it is
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read/write (read as 1/write as 0)*/
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array[0] = reg_addr|0x80;/*read routine is initiated register address is mask with 0x80*/
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/*
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* Please take the below function as your reference for
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* read the data using SPI communication
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* " IERROR = SPI_READ_WRITE_STRING(ARRAY, ARRAY, CNT+1)"
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* add your SPI read function here
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* iError is an return value of SPI read function
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* Please select your valid return value
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* In the driver SUCCESS defined as 0
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* and FAILURE defined as -1
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* Note :
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* This is a full duplex operation,
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* The first read data is discarded, for that extra write operation
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* have to be initiated. For that cnt+1 operation done in the SPI read
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* and write string function
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* For more information please refer data sheet SPI communication:
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*/
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for (stringpos = 0; stringpos < cnt; stringpos++) {
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*(reg_data + stringpos) = array[stringpos+1];
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}
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return (s8)iError;
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}
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//
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///* \Brief: The function is used as SPI bus write
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// * \Return : Status of the SPI write
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// * \param dev_addr : The device address of the sensor
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// * \param reg_addr : Address of the first register, will data is going to be written
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// * \param reg_data : It is a value hold in the array,
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// * will be used for write the value into the register
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// * \param cnt : The no of byte of data to be write
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// */
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//s8 BMA2x2_SPI_bus_write(u8 dev_addr, u8 reg_addr, u8 *reg_data, u8 cnt)
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//{
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// s32 iError = 0;
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// u8 array[SPI_BUFFER_LEN * 2];
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// u8 stringpos = 0;
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// for (stringpos = 0; stringpos < cnt; stringpos++) {
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// /* the operation of (reg_addr++)&0x7F done: because it ensure the
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// 0 and 1 of the given value
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// It is done only for 8bit operation*/
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// array[stringpos * 2] = (reg_addr++) & 0x7F;
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// array[stringpos * 2 + 1] = *(reg_data + stringpos);
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// }
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// /* Please take the below function as your reference
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// * for write the data using SPI communication
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// * add your SPI write function here.
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// * "IERROR = SPI_WRITE_STRING(ARRAY, CNT*2)"
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// * iError is an return value of SPI write function
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// * Please select your valid return value
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// * In the driver SUCCESS defined as 0
|
|
// * and FAILURE defined as -1
|
|
// */
|
|
// return (s8)iError;
|
|
//}
|
|
|
|
/* Brief : The delay routine
|
|
* \param : delay in ms
|
|
*/
|
|
void BMA2x2_delay_msek(u32 msek)
|
|
{
|
|
/*Here you can write your own delay routine*/
|
|
mico_thread_msleep(msek);
|
|
}
|
|
#endif
|
|
|
|
|
|
OSStatus bma2x2_sensor_init(void)
|
|
{
|
|
OSStatus err = kUnknownErr;
|
|
/* Local variable used to assign the bandwidth value*/
|
|
u8 v_bw_value_u8 = 0;
|
|
/* Local variable used to set the bandwidth value*/
|
|
u8 banwid = 0;
|
|
s32 com_rslt = BMA2x2_ERROR; // result of communication results
|
|
// u8 v_stand_by_time_u8 = BME280_INIT_VALUE; // The variable used to assign the standby time
|
|
|
|
// I2C init
|
|
MicoI2cFinalize(&bma2x2_i2c_device); // in case error
|
|
err = MicoI2cInitialize(&bma2x2_i2c_device);
|
|
require_noerr_action( err, exit, bma2x2_user_log("BMA2x2_ERROR: MicoI2cInitialize err = %d.", err) );
|
|
if( false == MicoI2cProbeDevice(&bma2x2_i2c_device, 5) ){
|
|
bma2x2_user_log("BMA2x2_ERROR: no i2c device found!");
|
|
err = kNotFoundErr;
|
|
goto exit;
|
|
}
|
|
|
|
// sensor init
|
|
|
|
/*********************** START INITIALIZATION ************************/
|
|
/* Based on the user need configure I2C or SPI interface.
|
|
* It is example code to explain how to use the bme280 API*/
|
|
#ifdef BMA2x2_API
|
|
BMA2x2_I2C_routine();
|
|
com_rslt = bma2x2_init(&bma2x2);
|
|
com_rslt += bma2x2_set_power_mode(BMA2x2_MODE_NORMAL);
|
|
/*------------------------------------------------------------------------*
|
|
************************* START GET and SET FUNCTIONS DATA ****************
|
|
*---------------------------------------------------------------------------*/
|
|
/* This API used to Write the bandwidth of the sensor input
|
|
value have to be given
|
|
bandwidth is set from the register 0x10 bits from 1 to 4*/
|
|
v_bw_value_u8 = 0x08;/* set bandwidth of 7.81Hz*/
|
|
com_rslt += bma2x2_set_bw(v_bw_value_u8);
|
|
|
|
/* This API used to read back the written value of bandwidth*/
|
|
com_rslt += bma2x2_get_bw(&banwid);
|
|
/*-----------------------------------------------------------------*
|
|
************************* END GET and SET FUNCTIONS ****************
|
|
*-------------------------------------------------------------------*/
|
|
|
|
if(com_rslt < 0){
|
|
bma2x2_user_log("BMA2x2_ERROR: bme280 sensor init failed!");
|
|
err = kNotInitializedErr;
|
|
goto exit;
|
|
}
|
|
/************************* END INITIALIZATION *************************/
|
|
#endif
|
|
return kNoErr;
|
|
|
|
exit:
|
|
return err;
|
|
}
|
|
|
|
|
|
OSStatus bma2x2_data_readout(s16 *v_accel_x_s16, s16 *v_accel_y_s16, s16 *v_accel_z_s16)
|
|
{
|
|
OSStatus err = kUnknownErr;
|
|
|
|
/* result of communication results*/
|
|
s32 com_rslt = BMA2x2_ERROR;
|
|
|
|
//-------------------------- NOTE ----------------------------------
|
|
// this is to avoid i2c pin is re-init by other module because they use the same pin.
|
|
MicoI2cInitialize(&bma2x2_i2c_device);
|
|
//------------------------------------------------------------------
|
|
|
|
/************ START READ TRUE PRESSURE, TEMPERATURE AND HUMIDITY DATA *********/
|
|
|
|
com_rslt = bma2x2_read_accel_x(v_accel_x_s16);/* Read the accel X data*/
|
|
|
|
com_rslt += bma2x2_read_accel_y(v_accel_y_s16);/* Read the accel Y data*/
|
|
|
|
com_rslt += bma2x2_read_accel_z(v_accel_z_s16);/* Read the accel Z data*/
|
|
|
|
/************ END READ TRUE PRESSURE, TEMPERATURE AND HUMIDITY ********/
|
|
|
|
if(0 == com_rslt){
|
|
err = kNoErr;
|
|
}
|
|
return err;
|
|
}
|
|
|
|
OSStatus bma2x2_sensor_deinit(void)
|
|
{
|
|
OSStatus err = kUnknownErr;
|
|
s32 com_rslt = BMA2x2_ERROR;
|
|
|
|
err = MicoI2cFinalize(&bma2x2_i2c_device);
|
|
require_noerr_action( err, exit, bma2x2_user_log("BMA2x2_ERROR: MicoI2cFinalize err = %d.", err));
|
|
|
|
/*-----------------------------------------------------------------------*
|
|
************************* START DE-INITIALIZATION ***********************
|
|
*-------------------------------------------------------------------------*/
|
|
/* For de-initialization it is required to set the mode of
|
|
* the sensor as "DEEP SUSPEND"
|
|
* DEEP SUSPEND mode is set from the register 0x11
|
|
* 0x11 -> bit 5 -> set value as 1
|
|
* the device reaches the lowest power consumption only
|
|
* interface selection is kept alive
|
|
* No data acquisition is performed
|
|
* by using the below API able to set the power mode as DEEPSUSPEND*/
|
|
/* Set the power mode as DEEPSUSPEND*/
|
|
com_rslt = bma2x2_set_power_mode(BMA2x2_MODE_DEEP_SUSPEND);
|
|
/*---------------------------------------------------------------------*
|
|
************************* END DE-INITIALIZATION **********************
|
|
*---------------------------------------------------------------------*/
|
|
|
|
if(0 == com_rslt){
|
|
err = kNoErr;
|
|
}
|
|
|
|
exit:
|
|
return err;
|
|
}
|
|
|
|
|
|
|
|
|