simon
e5db0b21c7
Probe and configure the sensor when present; log and continue boot if init fails so boards without BMA456 still run normally. Co-authored-by: Cursor <cursoragent@cursor.com>
104 lines
3.5 KiB
C
104 lines
3.5 KiB
C
/**\
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* Copyright (c) 2022 Bosch Sensortec GmbH. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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**/
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#include <stdio.h>
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#include "bma456h.h"
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#include "common.h"
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/******************************************************************************/
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/*! Function */
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/* This function starts the execution of program. */
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int main(void)
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{
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/* Variable to store the status of API */
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int8_t rslt;
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/* Sensor initialization configuration */
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struct bma4_dev bma = { 0 };
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/* Variable to store step counter interrupt status */
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uint16_t int_status = 0;
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/* Variable to store step counter output */
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uint32_t step_out = 0;
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/* Interface reference is given as a parameter
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* For I2C : BMA4_I2C_INTF
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* For SPI : BMA4_SPI_INTF
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* Variant information given as parameter - BMA45X_VARIANT
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*/
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rslt = bma4_interface_init(&bma, BMA4_SPI_INTF, BMA45X_VARIANT);
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bma4_error_codes_print_result("bma4_interface_init", rslt);
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/* Sensor initialization */
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rslt = bma456h_init(&bma);
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bma4_error_codes_print_result("bma456h_init status", rslt);
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/* Upload the configuration file to enable the features of the sensor. */
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rslt = bma456h_write_config_file(&bma);
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bma4_error_codes_print_result("bma456h_write_config status", rslt);
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/* Enable the accelerometer */
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rslt = bma4_set_accel_enable(BMA4_ENABLE, &bma);
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bma4_error_codes_print_result("bma4_set_accel_enable status", rslt);
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if (rslt == BMA4_OK)
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{
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/* Map the interrupt pin 1 for step counter */
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rslt = bma456h_map_interrupt(BMA4_INTR1_MAP, BMA456H_STEP_CNTR_INT, BMA4_ENABLE, &bma);
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bma4_error_codes_print_result("bma456h_map_interrupt status", rslt);
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if (rslt == BMA4_OK)
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{
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/* Setting watermark level 1, the output step resolution is 20 steps.
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* Eg: 1 means, 1 * 20 = 20. Every 20 steps once output triggers
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*/
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rslt = bma456h_step_counter_set_watermark(1, &bma);
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bma4_error_codes_print_result("bma456h_step_counter_set_watermark status", rslt);
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if (rslt == BMA4_OK)
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{
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/* Enabling step counter feature */
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rslt = bma456h_feature_enable(BMA456H_STEP_COUNTER_EN, BMA4_ENABLE, &bma);
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bma4_error_codes_print_result("bma456h_feature_enable status", rslt);
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}
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}
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if (rslt == BMA4_OK)
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{
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printf("Step counter feature is enabled\n");
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printf("Step counter watermark level is 1 (Output resolution is 20 steps)\n");
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printf("Move the board in steps to perform step counter\n");
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for (;;)
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{
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/* Read interrupt status */
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rslt = bma456h_read_int_status(&int_status, &bma);
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bma4_error_codes_print_result("bma456h_read_int_status", rslt);
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/* Enters only if the obtained interrupt is step counter */
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if ((rslt == BMA4_OK) && (int_status & BMA456H_STEP_CNTR_INT))
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{
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printf("Step counter interrupt received when watermark level is reached (20 steps)\n");
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rslt = bma456h_step_counter_output(&step_out, &bma);
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printf("The step counter output is %lu\n", (long unsigned int)step_out);
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break;
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}
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int_status = 0;
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}
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}
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}
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bma4_coines_deinit();
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return rslt;
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}
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