/**\ * Copyright (c) 2023 Bosch Sensortec GmbH. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause **/ #include #include "bma456_tablet.h" #include "common.h" /*****************************************************************************/ /*! Global variable */ /*! Structure to define any/no-motion configurations */ struct bma456_tablet_any_no_mot_config any_no_mot = { 0 }; /******************************************************************************/ /*! Static Function Declaration */ /*! * @brief This internal API is used to get any/no-motion configurations. * * @param[in] bma : Structure instance of bma4_dev. * * @return Status of execution. */ static int8_t get_any_no_mot_config(struct bma4_dev *bma); /******************************************************************************/ /*! Functions */ /* This function starts the execution of program. */ int main(void) { /* Variable to store the status of API */ int8_t rslt; /* Sensor initialization configuration */ struct bma4_dev bma = { 0 }; /* Variable to store any/no-motion interrupt status */ uint16_t int_status = 0; uint8_t iteration = 20; /* Interface reference is given as a parameter * For I2C : BMA4_I2C_INTF * For SPI : BMA4_SPI_INTF * Variant information given as parameter - BMA45X_VARIANT */ rslt = bma4_interface_init(&bma, BMA4_I2C_INTF, BMA45X_VARIANT); bma4_error_codes_print_result("bma4_interface_init", rslt); /* Sensor initialization */ rslt = bma456_tablet_init(&bma); bma4_error_codes_print_result("bma456_tablet_init status", rslt); /* Upload the configuration file to enable the features of the sensor. */ rslt = bma456_tablet_write_config_file(&bma); bma4_error_codes_print_result("bma456_tablet_write_config status", rslt); /* Enable the accelerometer */ rslt = bma4_set_accel_enable(BMA4_ENABLE, &bma); bma4_error_codes_print_result("bma4_set_accel_enable status", rslt); /* Map the interrupt pin 1 for any/no-motion */ rslt = bma456_tablet_map_interrupt(BMA4_INTR1_MAP, (BMA456_TABLET_ANY_MOT_INT | BMA456_TABLET_NO_MOT_INT), BMA4_ENABLE, &bma); bma4_error_codes_print_result("bma456_tablet_map_interrupt status", rslt); /* Get any-motion and no-motion configurations */ rslt = get_any_no_mot_config(&bma); bma4_error_codes_print_result("get_any_no_mot_config status", rslt); printf("Shake the board for any-motion interrupt whereas do not shake the board for no-motion interrupt\n"); if (rslt == BMA4_OK) { for (;;) { /* Read interrupt status */ rslt = bma456_tablet_read_int_status(&int_status, &bma); bma4_error_codes_print_result("bma456_tablet_read_int_status", rslt); if (rslt == BMA4_OK) { /* Enters only if the obtained interrupt is any-motion */ if (int_status & BMA456_TABLET_ANY_MOT_INT) { printf("Any-motion interrupt occurred\n"); iteration--; } /* Enters only if the obtained interrupt is no-motion */ else if (int_status & BMA456_TABLET_NO_MOT_INT) { printf("No-motion interrupt occurred\n"); iteration--; } int_status = 0; /* Break out of the loop when iteration has reached zero */ if (iteration == 0) { printf("Iterations are done. Exiting !\n\n"); break; } } } } bma4_coines_deinit(); return rslt; } /*! * @brief This internal API is used to get any/no-motion configurations. */ static int8_t get_any_no_mot_config(struct bma4_dev *bma) { /* Variable to store the status of API */ int8_t rslt; /* Getting any-motion configuration to get default configuration */ rslt = bma456_tablet_get_any_mot_config(&any_no_mot, bma); bma4_error_codes_print_result("bma456_tablet_get_any_mot_config status", rslt); if (rslt == BMA4_OK) { /* Select the axis for which any/no motion interrupt should be generated */ any_no_mot.axes_en = BMA456_TABLET_EN_ALL_AXIS; /* * Set the slope threshold: * Interrupt will be generated if the slope of all the axis exceeds the threshold (1 bit = 0.48mG) */ any_no_mot.threshold = 10; /* * Set the duration for any-motion interrupt: * Duration defines the number of consecutive data points for which threshold condition must be true(1 * bit = * 20ms) */ any_no_mot.duration = 4; /* Like threshold and duration, we can also change the config of int_bhvr and slope */ /* Set the threshold and duration configuration */ rslt = bma456_tablet_set_any_mot_config(&any_no_mot, bma); bma4_error_codes_print_result("bma456_tablet_set_any_mot_config status", rslt); if (rslt == BMA4_OK) { /* Getting no-motion configuration to get default configuration */ rslt = bma456_tablet_get_no_mot_config(&any_no_mot, bma); bma4_error_codes_print_result("bma456_tablet_get_no_mot_config status", rslt); if (rslt == BMA4_OK) { /* Select the axis for which any/no motion interrupt should be generated */ any_no_mot.axes_en = BMA456_TABLET_EN_ALL_AXIS; /* * Set the slope threshold: * Interrupt will be generated if the slope of all the axis exceeds the threshold (1 bit = 0.48mG) */ any_no_mot.threshold = 10; /* * Set the duration for no-motion interrupt: * Duration defines the number of consecutive data points for which threshold condition must be * true(1 bit = 20ms) */ any_no_mot.duration = 4; /* Like threshold and duration, we can also change the config of int_bhvr */ /* Set the threshold and duration configuration */ rslt = bma456_tablet_set_no_mot_config(&any_no_mot, bma); bma4_error_codes_print_result("bma456_tablet_set_no_mot_config status", rslt); } } } return rslt; }