Add optional BMA456 accelerometer init on shared I2C bus.

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>
2026-05-18 22:51:32 +02:00
parent 755bdd92d7
commit e5db0b21c7
168 changed files with 42062 additions and 2 deletions
@@ -0,0 +1,18 @@
+COINES_INSTALL_PATH ?= ../../../..
+
+EXAMPLE_FILE ?= wrist_wear_wakeup.c
+
+API_LOCATION ?= ../..
+
+COMMON_LOCATION ?= ..
+
+C_SRCS += \
+$(API_LOCATION)/bma4.c \
+$(API_LOCATION)/bma456w.c \
+$(COMMON_LOCATION)/common/common.c
+
+INCLUDEPATHS += \
+$(API_LOCATION) \
+$(COMMON_LOCATION)/common
+
+include $(COINES_INSTALL_PATH)/coines.mk
@@ -0,0 +1,127 @@
+/**\
+ * Copyright (c) 2022 Bosch Sensortec GmbH. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ **/
+
+#include <stdio.h>
+#include "bma456w.h"
+#include "common.h"
+
+int main(void)
+{
+    struct bma4_dev bma;
+    struct bma4_accel_config accel_conf;
+    struct bma456w_wrist_wear_wakeup_params setting;
+    uint8_t try = 10;
+    int8_t rslt;
+
+    /* Variable to get the interrupt status */
+    uint16_t int_status = 0;
+
+    /* 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 = bma456w_init(&bma);
+    bma4_error_codes_print_result("bma456w_init", rslt);
+
+    /* Upload the configuration file to enable the features of the sensor. */
+    rslt = bma456w_write_config_file(&bma);
+    bma4_error_codes_print_result("bma456w_write_config", rslt);
+
+    /* Accelerometer Configuration Setting */
+    /* Output data Rate */
+    accel_conf.odr = BMA4_OUTPUT_DATA_RATE_100HZ;
+
+    /* Gravity range of the sensor (+/- 2G, 4G, 8G, 16G) */
+    accel_conf.range = BMA4_ACCEL_RANGE_2G;
+
+    /* Bandwidth configure number of sensor samples required to average
+     * if value = 2, then 4 samples are averaged
+     * averaged samples = 2^(val(accel bandwidth))
+     * Note1 : More info refer datasheets
+     * Note2 : A higher number of averaged samples will result in a lower noise level of the signal, but since the
+     * performance power mode phase is increased, the power consumption will also rise.
+     */
+    accel_conf.bandwidth = BMA4_ACCEL_NORMAL_AVG4;
+
+    /* Enable the filter performance mode where averaging of samples
+     * will be done based on above set bandwidth and ODR.
+     * There are two modes
+     *  0 -> Averaging samples (Default)
+     *  1 -> No averaging
+     * For more info on No Averaging mode refer datasheets.
+     */
+    accel_conf.perf_mode = BMA4_CIC_AVG_MODE;
+
+    /* Set the accel configurations */
+    rslt = bma4_set_accel_config(&accel_conf, &bma);
+    bma4_error_codes_print_result("bma4_set_accel_config status", rslt);
+
+    /* NOTE : Enable accel after set of configurations */
+    rslt = bma4_set_accel_enable(1, &bma);
+    bma4_error_codes_print_result("bma4_set_accel_enable status", rslt);
+
+    printf("\nEnable wear feature\n");
+
+    rslt = bma456w_feature_enable(BMA456W_WRIST_WEAR_WAKEUP, 1, &bma);
+    bma4_error_codes_print_result("bma456w_feature_enable status", rslt);
+
+    rslt = bma456w_get_wrist_wear_wakeup_param_config(&setting, &bma);
+    bma4_error_codes_print_result("bma456w_get_wrist_wear_wakeup_param_config status", rslt);
+
+    rslt = bma456w_map_interrupt(BMA4_INTR1_MAP, BMA456W_WRIST_WEAR_WAKEUP_INT, BMA4_ENABLE, &bma);
+    bma4_error_codes_print_result("bma456w_map_interrupt status", rslt);
+
+    printf("Do wear movement\n");
+
+    for (;;)
+    {
+        /* Read the interrupt register to check whether wrist wear interrupt is received. */
+        rslt = bma456w_read_int_status(&int_status, &bma);
+        bma4_error_codes_print_result("bma456w_read_int_status status", rslt);
+
+        /* Check if step counter interrupt is triggered */
+        if ((BMA4_OK == rslt) && (int_status & BMA456W_WRIST_WEAR_WAKEUP_INT))
+        {
+            printf("\nWear interrupt is received\n\n");
+
+            break;
+        }
+    }
+
+    printf("\nDisable wear feature\n");
+    rslt = bma456w_feature_enable(BMA456W_WRIST_WEAR_WAKEUP, BMA4_DISABLE, &bma);
+    bma4_error_codes_print_result("bma456w_feature_enable status", rslt);
+
+    rslt = bma456w_map_interrupt(BMA4_INTR1_MAP, BMA456W_WRIST_WEAR_WAKEUP_INT, BMA4_ENABLE, &bma);
+    bma4_error_codes_print_result("bma456w_map_interrupt status", rslt);
+
+    printf("Do wear movement\n\n");
+
+    while (try--)
+    {
+        rslt = bma456w_read_int_status(&int_status, &bma);
+        bma4_error_codes_print_result("bma456w_read_int_status status", rslt);
+
+        if (int_status & BMA456W_WRIST_WEAR_WAKEUP_INT)
+        {
+            printf("Wear interrupt is received, Test is failed\n");
+            break;
+        }
+        else
+        {
+            printf("Wear feature disable and wear interrupt not received\n");
+        }
+    }
+
+    bma4_coines_deinit();
+
+    return rslt;
+}