stm32f103通过IIC驱动LIS3DH传感器。实测可用！

/******************** (C) COPYRIGHT 2012 STMicroelectronics ******************** * File Name : LIS3DH_driver.c * Author : MSH Application Team * Author : Fabio Tota * Version : $Revision:$ * Date : $Date:$ * Description : LIS3DH driver file * * HISTORY: * Date | Modification | Author * 24/06/2011 | Initial Revision | Fabio Tota * 11/06/2012 | Support for multiple drivers in the same program | Abhishek Anand ******************************************************************************** * 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. * * THIS SOFTWARE IS SPECIFICALLY DESIGNED FOR EXCLUSIVE USE WITH ST PARTS. * *******************************************************************************/ /* Includes ------------------------------------------------------------------*/ #include "speed.h" #include <iic.h> /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ /* Private function prototypes -----------------------------------------------*/ /******************************************************************************* * Function Name : LIS3DH_ReadReg * Description : Generic Reading function. It must be fullfilled with either * : I2C or SPI reading functions * Input : Register Address * Output : Data REad * Return : None *******************************************************************************/ u8_t LIS3DH_ReadReg(u8_t Reg, u8_t* Data) { //To be completed with either I2c or SPI reading function *Data = Single_Read_LIS3DH(Reg); return 1; } /******************************************************************************* * Function Name : LIS3DH_WriteReg * Description : Generic Writing function. It must be fullfilled with either * : I2C or SPI writing function * Input : Register Address, Data to be written * Output : None * Return : None *******************************************************************************/ u8_t LIS3DH_WriteReg(u8_t WriteAddr, u8_t Data) { Single_Write_LIS3DH(WriteAddr,Data); return 1; } /* Private functions ---------------------------------------------------------*/ /******************************************************************************* * Function Name : LIS3DH_GetWHO_AM_I * Description : Read identification code by WHO_AM_I register * Input : Char to empty by Device identification Value * Output : None * Return : Status [value of FSS] *******************************************************************************/ status_t LIS3DH_GetWHO_AM_I(u8_t* val){ if( !LIS3DH_ReadReg(LIS3DH_WHO_AM_I, val) ) return MEMS_ERROR; return MEMS_SUCCESS; } /******************************************************************************* * Function Name : LIS3DH_GetStatusAUX * Description : Read the AUX status register * Input : Char to empty by status register buffer * Output : None * Return : Status [MEMS_ERROR, MEMS_SUCCESS] *******************************************************************************/ status_t LIS3DH_GetStatusAUX(u8_t* val) { if( !LIS3DH_ReadReg(LIS3DH_STATUS_AUX, val) ) return MEMS_ERROR; return MEMS_SUCCESS; } /******************************************************************************* * Function Name : LIS3DH_GetStatusAUXBIT * Description : Read the AUX status register BIT * Input : LIS3DH_STATUS_AUX_321OR, LIS3DH_STATUS_AUX_3OR, LIS3DH_STATUS_AUX_2OR, LIS3DH_STATUS_AUX_1OR, LIS3DH_STATUS_AUX_321DA, LIS3DH_STATUS_AUX_3DA, LIS3DH_STATUS_AUX_2DA, LIS3DH_STATUS_AUX_1DA * Output : None * Return : Status of BIT [MEMS_ERROR, MEMS_SUCCESS] *******************************************************************************/ status_t LIS3DH_GetStatusAUXBit(u8_t statusBIT, u8_t* val) { u8_t value; if( !LIS3DH_ReadReg(LIS3DH_STATUS_AUX, &value) ) return MEMS_ERROR; if(statusBIT == LIS3DH_STATUS_AUX_321OR){ if(value &= LIS3DH_STATUS_AUX_321OR){ *val = MEMS_SET; return MEMS_SUCCESS; } else{ *val = MEMS_RESET; return MEMS_SUCCESS; } } if(statusBIT == LIS3DH_STATUS_AUX_3OR){ if(value &= LIS3DH_STATUS_AUX_3OR){ *val = MEMS_SET; return MEMS_SUCCESS; } else{ *val = MEMS_RESET; return MEMS_SUCCESS; } } if(statusBIT == LIS3DH_STATUS_AUX_2OR){ if(value &= LIS3DH_STATUS_AUX_2OR){ *val = MEMS_SET; return MEMS_SUCCESS; } else{ *val = MEMS_RESET; return MEMS_SUCCESS; } } if(statusBIT == LIS3DH_STATUS_AUX_1OR){ if(value &= LIS3DH_STATUS_AUX_1OR){ *val = MEMS_SET; return MEMS_SUCCESS; } else{ *val = MEMS_RESET; return MEMS_SUCCESS; } } if(statusBIT == LIS3DH_STATUS_AUX_321DA){ if(value &= LIS3DH_STATUS_AUX_321DA) { *val = MEMS_SET; return MEMS_SUCCESS; } else{ *val = MEMS_RESET; return MEMS_SUCCESS; } } if(statusBIT == LIS3DH_STATUS_AUX_3DA){ if(value &= LIS3DH_STATUS_AUX_3DA){ *val = MEMS_SET; return MEMS_SUCCESS; } else{ *val = MEMS_RESET; return MEMS_SUCCESS; } } if(statusBIT == LIS3DH_STATUS_AUX_2DA){ if(value &= LIS3DH_STATUS_AUX_2DA){ *val = MEMS_SET; return MEMS_SUCCESS; } else{ *val = MEMS_RESET; return MEMS_SUCCESS; } } if(statusBIT == LIS3DH_STATUS_AUX_1DA){ if(value &= LIS3DH_STATUS_AUX_1DA){ *val = MEMS_SET; return MEMS_SUCCESS; } else{ *val = MEMS_RESET; return MEMS_SUCCESS; } } return MEMS_ERROR; } /******************************************************************************* * Function Name : LIS3DH_SetODR * Description : Sets LIS3DH Output Data Rate * Input : Output Data Rate * Output : None * Return : Status [MEMS_ERROR, MEMS_SUCCESS] *******************************************************************************/ status_t LIS3DH_SetODR(LIS3DH_ODR_t ov){ u8_t value; if( !LIS3DH_ReadReg(LIS3DH_CTRL_REG1, &value) ) return MEMS_ERROR; value &= 0x0f; value |= ov<<LIS3DH_ODR_BIT; if( !LIS3DH_WriteReg(LIS3DH_CTRL_REG1, value) ) return MEMS_ERROR; return MEMS_SUCCESS; } /******************************************************************************* * Function Name : LIS3DH_SetTemperature * Description : Sets LIS3DH Output Temperature * Input : MEMS_ENABLE, MEMS_DISABLE * Output : None * Note : For Read Temperature by LIS3DH_OUT_AUX_3, LIS3DH_SetADCAux and LIS3DH_SetBDU functions must be ENABLE * Return : Status [MEMS_ERROR, MEMS_SUCCESS] *******************************************************************************/ status_t LIS3DH_SetTemperature(State_t state){ u8_t value; if( !LIS3DH_ReadReg(LIS3DH_TEMP_CFG_REG