diff options
Diffstat (limited to 'examples/imx7_colibri_m4/demo_apps/sensor_demo/common/fxos8700.c')
| -rw-r--r-- | examples/imx7_colibri_m4/demo_apps/sensor_demo/common/fxos8700.c | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/examples/imx7_colibri_m4/demo_apps/sensor_demo/common/fxos8700.c b/examples/imx7_colibri_m4/demo_apps/sensor_demo/common/fxos8700.c deleted file mode 100644 index 207c594..0000000 --- a/examples/imx7_colibri_m4/demo_apps/sensor_demo/common/fxos8700.c +++ /dev/null @@ -1,158 +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 "i2c_xfer.h" -#include "fxos8700.h" - -/*FUNCTION**************************************************************** -* -* Function Name : fxos8700_init -* Returned Value : result -* Comments : Initialize FXOS8700 Acc and Mag sensor. -* -*END*********************************************************************/ -bool fxos8700_init(void) -{ - uint8_t txBuffer; - uint8_t cmdBuffer[2]; - - // write 0000 0000 = 0x00 to CTRL_REG1 to place FXOS8700 into standby - // [7-1] = 0000 000 - // [0]: active=0 - cmdBuffer[0] = BOARD_I2C_FXOS8700_ADDR << 1; - cmdBuffer[1] = FXOS8700_CTRL_REG1; - txBuffer = 0x00; - if (!I2C_XFER_SendDataBlocking(cmdBuffer, 2, &txBuffer, 1)) - return false; - - // write 0001 1111 = 0x1F to M_CTRL_REG1 - // [7]: m_acal=0: auto calibration disabled - // [6]: m_rst=0: one-shot magnetic reset disabled - // [5]: m_ost=0: one-shot magnetic measurement disabled - // [4-2]: m_os=111=7: 8x oversampling (for 200Hz) to reduce magnetometer noise - // [1-0]: m_hms=11=3: select hybrid mode with accel and magnetometer active - cmdBuffer[0] = BOARD_I2C_FXOS8700_ADDR << 1; - cmdBuffer[1] = FXOS8700_M_CTRL_REG1; - txBuffer = 0x1F; - if (!I2C_XFER_SendDataBlocking(cmdBuffer, 2, &txBuffer, 1)) - return false; - - // write 0010 0000 = 0x20 to magnetometer control register 2 - // [7]: reserved - // [6]: reserved - // [5]: hyb_autoinc_mode=1 to map the magnetometer registers to follow the accelerometer registers - // [4]: m_maxmin_dis=0 to retain default min/max latching even though not used - // [3]: m_maxmin_dis_ths=0 - // [2]: m_maxmin_rst=0 - // [1-0]: m_rst_cnt=00 to enable magnetic reset each cycle - cmdBuffer[0] = BOARD_I2C_FXOS8700_ADDR << 1; - cmdBuffer[1] = FXOS8700_M_CTRL_REG2; - txBuffer = 0x20; - if (!I2C_XFER_SendDataBlocking(cmdBuffer, 2, &txBuffer, 1)) - return false; - - // write 0000 0001= 0x01 to XYZ_DATA_CFG register - // [7]: reserved - // [6]: reserved - // [5]: reserved - // [4]: hpf_out=0 - // [3]: reserved - // [2]: reserved - // [1-0]: fs=01 for 4g mode: 2048 counts / g = 8192 counts / g after 2 bit left shift - cmdBuffer[0] = BOARD_I2C_FXOS8700_ADDR << 1; - cmdBuffer[1] = FXOS8700_XYZ_DATA_CFG; - txBuffer = 0x01; - if (!I2C_XFER_SendDataBlocking(cmdBuffer, 2, &txBuffer, 1)) - return false; - - // write 0000 0010 = 0x02 to CTRL_REG2 to set MODS bits - // [7]: st=0: self test disabled - // [6]: rst=0: reset disabled - // [5]: unused - // [4-3]: smods=00 - // [2]: slpe=0: auto sleep disabled - // [1-0]: mods=10 for high resolution (maximum over sampling) - cmdBuffer[0] = BOARD_I2C_FXOS8700_ADDR << 1; - cmdBuffer[1] = FXOS8700_CTRL_REG2; - txBuffer = 0x02; - if (!I2C_XFER_SendDataBlocking(cmdBuffer, 2, &txBuffer, 1)) - return false; - - // write 0000 1101 = 0x0D to accelerometer control register 1 - // [7-6]: aslp_rate=00 - // [5-3]: dr=001=1 for 200Hz data rate (when in hybrid mode) - // [2]: lnoise=1 for low noise mode (since we're in 4g mode) - // [1]: f_read=0 for normal 16 bit reads - // [0]: active=1 to take the part out of standby and enable sampling - cmdBuffer[0] = BOARD_I2C_FXOS8700_ADDR << 1; - cmdBuffer[1] = FXOS8700_CTRL_REG1; - txBuffer = 0x0D; - if (!I2C_XFER_SendDataBlocking(cmdBuffer, 2, &txBuffer, 1)) - return false; - - return true; -} - -/*FUNCTION**************************************************************** -* -* Function Name : fxos8700_read_data -* Returned Value : result -* Comments : Get current Acc and Mag from FXOS8700 6-axis sensor. -* -*END*********************************************************************/ -bool fxos8700_read_data(int16_t *Ax, int16_t *Ay, int16_t *Az, - int16_t *Mx, int16_t *My, int16_t *Mz) -{ - uint8_t rxBuffer[12]; - uint8_t cmdBuffer[3]; - - // Fetch Current Acc and Mag in all Axis - cmdBuffer[0] = BOARD_I2C_FXOS8700_ADDR << 1; - cmdBuffer[1] = FXOS8700_OUT_X_MSB; - cmdBuffer[2] = (BOARD_I2C_FXOS8700_ADDR << 1) + 1; - if (!I2C_XFER_ReceiveDataBlocking(cmdBuffer, 3, rxBuffer, 12)) - return false; - - *Ax = (rxBuffer[2] << 8) | rxBuffer[3]; - *Ay = (rxBuffer[0] << 8) | rxBuffer[1]; - *Az = (rxBuffer[4] << 8) | rxBuffer[5]; - *Mx = (rxBuffer[8] << 8) | rxBuffer[9]; - *My = (rxBuffer[6] << 8) | rxBuffer[7]; - *Mz = (rxBuffer[10] << 8) | rxBuffer[11]; - - return true; -} - -/******************************************************************************* - * EOF - ******************************************************************************/ |