diff options
Diffstat (limited to 'examples/imx7_colibri_m4/demo_apps/sensor_demo/common/mma8451q.c')
| -rw-r--r-- | examples/imx7_colibri_m4/demo_apps/sensor_demo/common/mma8451q.c | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/examples/imx7_colibri_m4/demo_apps/sensor_demo/common/mma8451q.c b/examples/imx7_colibri_m4/demo_apps/sensor_demo/common/mma8451q.c deleted file mode 100644 index d44f63d..0000000 --- a/examples/imx7_colibri_m4/demo_apps/sensor_demo/common/mma8451q.c +++ /dev/null @@ -1,185 +0,0 @@ -/* - * Copyright (c) 2015, Freescale Semiconductor, Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * o Redistributions of source code must retain the above copyright notice, this list - * of conditions and the following disclaimer. - * - * o Redistributions in binary form must reproduce the above copyright notice, this - * list of conditions and the following disclaimer in the documentation and/or - * other materials provided with the distribution. - * - * o Neither the name of Freescale Semiconductor, Inc. nor the names of its - * contributors may be used to endorse or promote products derived from this - * software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR - * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include <stdint.h> -#include <stdbool.h> -#include "board.h" -#include "debug_console_imx.h" -#include "i2c_xfer.h" -#include "mma8451q.h" - -static uint8_t mma8451qMode; - -/*FUNCTION**************************************************************** -* -* Function Name : MMA8451Q_Init -* Returned Value : true or false -* Comments : Initialize MMA8451Q 3-axis accelerometer sensor. -* -*END*********************************************************************/ -bool MMA8451Q_Init(void) -{ - uint8_t txBuffer; - uint8_t rxBuffer; - uint8_t cmdBuffer[3]; - - /* Place the MMA8451Q in Standby */ - PRINTF("Place the MMA8451Q in standby mode... "); - cmdBuffer[0] = BOARD_I2C_MMA8451Q_ADDR << 1; - cmdBuffer[1] = MMA8451Q_CTRL_REG1; - txBuffer = 0x00; - if (!I2C_XFER_SendDataBlocking(cmdBuffer, 2, &txBuffer, 1)) - { - PRINTF("ERROR\n\r"); - return false; - } - PRINTF("OK\n\r"); - - // write 0000 0000= 0x00 to MMA8451Q_XYZ_DATA_CFG register - // [7]: reserved - // [6]: reserved - // [5]: reserved - // [4]: hpf_out=0 - // [3]: reserved - // [2]: reserved - // [1-0]: fs=00 for 2g mode. - PRINTF("Set the mode: 2G ... "); - cmdBuffer[0] = BOARD_I2C_MMA8451Q_ADDR << 1; - cmdBuffer[1] = MMA8451Q_XYZ_DATA_CFG; - txBuffer = 0x00; - if (!I2C_XFER_SendDataBlocking(cmdBuffer, 2, &txBuffer, 1)) - { - PRINTF("ERROR\n\r"); - return false; - } - mma8451qMode = 0U; - PRINTF("OK\n\r"); - - // write 0000 0001 = 0x01 to MMA8451Q_CTRL_REG1 - // [7-6]: aslp_rate=00 - // [5-3]: dr=000 - // [2]: lnoise=0 - // [1]: f_read=0 for normal read mode - // [0]: active=1 to take the part out of standby and enable sampling - PRINTF("Fast read clear and active mode ... "); - cmdBuffer[0] = BOARD_I2C_MMA8451Q_ADDR << 1; - cmdBuffer[1] = MMA8451Q_CTRL_REG1; - txBuffer = 0x01; - if (!I2C_XFER_SendDataBlocking(cmdBuffer, 2, &txBuffer, 1)) - { - PRINTF("ERROR\n\r"); - return false; - } - PRINTF("OK\n\r"); - - // read WHO_AM_I device register, 0x1A - PRINTF("Test WHO_AM_I check... "); - cmdBuffer[0] = BOARD_I2C_MMA8451Q_ADDR << 1; - cmdBuffer[1] = MMA8451Q_WHO_AM_I; - cmdBuffer[2] = (BOARD_I2C_MMA8451Q_ADDR << 1) + 1; - if (!I2C_XFER_ReceiveDataBlocking(cmdBuffer, 3, &rxBuffer, 1)) - { - PRINTF("ERROR\n\r"); - return false; - } - if(rxBuffer == MMA8451Q_DEVICE_ID) - PRINTF("OK\n\r"); - else - { - PRINTF("ERROR\n\r"); - return false; - } - return true; -} - -/*FUNCTION**************************************************************** -* -* Function Name : MMA8451Q_ReadData -* Returned Value : true or false -* Comments : Get current acceleration from MMA8451Q. -* -*END*********************************************************************/ -bool MMA8451Q_ReadData(int16_t *x, int16_t *y, int16_t *z) -{ - uint8_t rxBuffer[7]; - uint8_t cmdBuffer[3]; - - cmdBuffer[0] = BOARD_I2C_MMA8451Q_ADDR << 1; - cmdBuffer[1] = MMA8451Q_OUT_X_MSB; - cmdBuffer[2] = (BOARD_I2C_MMA8451Q_ADDR << 1) + 1; - if (!I2C_XFER_ReceiveDataBlocking(cmdBuffer, 3, rxBuffer, 7)) - return false; - - *x = ((rxBuffer[0] << 8) & 0xff00) | rxBuffer[1]; - *y = ((rxBuffer[2] << 8) & 0xff00) | rxBuffer[3]; - *z = ((rxBuffer[4] << 8) & 0xff00) | rxBuffer[5]; - *x = (int16_t)(*x) >> 2; - *y = (int16_t)(*y) >> 2; - *z = (int16_t)(*z) >> 2; - - if(mma8451qMode == mma8451qMode_4G) - { - (*x) = (*x) << 1; - (*y) = (*y) << 1; - (*z) = (*z) << 1; - } - else if(mma8451qMode == mma8451qMode_8G) - { - (*x) = (*x) << 2; - (*y) = (*y) << 2; - (*z) = (*z) << 2; - } - - return true; -} - - /*FUNCTION**************************************************************** -* -* Function Name : MMA8451Q_ChangeMode -* Returned Value : true or false -* Comments : Change the current mode. -* -*END*********************************************************************/ -bool MMA8451Q_ChangeMode(uint8_t mode) -{ - uint8_t txBuffer; - uint8_t cmdBuffer[2]; - - cmdBuffer[0] = BOARD_I2C_MMA8451Q_ADDR << 1; - cmdBuffer[1] = MMA8451Q_XYZ_DATA_CFG; - txBuffer = mode; - if (!I2C_XFER_SendDataBlocking(cmdBuffer, 2, &txBuffer, 1)) - return false; - return true; -} - -/******************************************************************************* - * EOF - ******************************************************************************/ |