skruecken/esp_alox
1
0
Fork 0
Code Issues 1 Pull Requests Actions Packages Projects 1 Releases Wiki Activity

BMA456 HW Interrupt after 2 Steps working

Browse Source
This commit is contained in:
simon 2025-12-16 17:47:58 +01:00
parent 6521e290d6
commit de747ef463
1 changed files with 59 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
main/i2c.c
View File

@ -7,6 +7,7 @@
#include "esp_err.h"
#include "esp_log.h"
#include "freertos/idf_additions.h"
#include "hal/gpio_types.h"
#include "ota_update.h"
#include <rom/ets_sys.h>
#include <stdint.h>
@ -17,7 +18,18 @@ static i2c_master_bus_handle_t bus_handle;
static i2c_master_dev_handle_t bma456_dev_handle;
static struct bma4_dev bma456_struct;
volatile uint8_t interrupt_status = 0;
uint8_t int_line;
struct bma4_int_pin_config pin_config = {0};
uint16_t int_status = 0;
#define BMA4_READ_WRITE_LEN UINT8_C(46)
#define BMA456W_INT_PIN 7
static void interrupt_callback(void *) {
interrupt_status = 1;
// ESP_LOGI("INTERRUPT", "STEP DETECTED");
}
/******************************************************************************/
/*! User interface functions */
@ -123,7 +135,14 @@ void read_sensor_task(void *params) {
ret = bma4_read_accel_xyz(&sens_data, &bma456_struct);
bma4_error_codes_print_result("bma4_read_accel_xyz", ret);
ESP_LOGI("i2c", "X:%d, Y%d, Z%d", sens_data.x, sens_data.y, sens_data.z);
if (interrupt_status) {
ESP_LOGI("INTERRUPT", "Da war der Interrupt resetting");
interrupt_status = 0;
ret = bma456w_read_int_status(&int_status, &bma456_struct);
bma4_error_codes_print_result("bma456w_step_counter_output status", ret);
}
// ESP_LOGI("i2c", "X:%d, Y%d, Z%d", sens_data.x, sens_data.y, sens_data.z);
vTaskDelay(pdMS_TO_TICKS(100));
}
}
@ -172,6 +191,45 @@ void init_bma456() {
ret = bma4_set_accel_enable(BMA4_ENABLE, &bma456_struct);
bma4_error_codes_print_result("bma4_set_accel_enable status", ret);
ret = bma456w_feature_enable(BMA456W_STEP_CNTR, BMA4_ENABLE, &bma456_struct);
bma4_error_codes_print_result("bma456w_feature_enable status", ret);
/* Setting watermark level 1, the output step resolution is 20 steps.
* Eg: 1 means, 1 * 20 = 20. Every 20 steps once output triggers
*/
ret = bma456w_step_counter_set_watermark(1, &bma456_struct);
bma4_error_codes_print_result("bma456w_step_counter_set_watermark status",
ret);
/* Hardware interrupt configuration */
int_line = BMA4_INTR2_MAP;
ret = bma4_get_int_pin_config(&pin_config, int_line, &bma456_struct);
bma4_error_codes_print_result("bma4_get_int_pin_config status", ret);
ret = bma456w_map_interrupt(int_line, BMA456W_STEP_CNTR_INT, BMA4_ENABLE,
&bma456_struct);
bma4_error_codes_print_result("bma456w_map_interrupt status", ret);
pin_config.edge_ctrl = BMA4_EDGE_TRIGGER;
pin_config.output_en = BMA4_OUTPUT_ENABLE;
pin_config.lvl = BMA4_ACTIVE_HIGH;
pin_config.od = BMA4_PUSH_PULL;
pin_config.input_en = BMA4_INPUT_DISABLE;
ret = bma4_set_int_pin_config(&pin_config, int_line, &bma456_struct);
bma4_error_codes_print_result("bma4_set_int_pin_config status", ret);
gpio_reset_pin(BMA456W_INT_PIN);
gpio_set_direction(BMA456W_INT_PIN, GPIO_MODE_INPUT);
gpio_set_pull_mode(BMA456W_INT_PIN, GPIO_PULLDOWN_ONLY);
gpio_set_intr_type(BMA456W_INT_PIN, GPIO_INTR_POSEDGE);
gpio_intr_enable(BMA456W_INT_PIN);
gpio_install_isr_service(0);
gpio_isr_handler_add(BMA456W_INT_PIN, interrupt_callback,
(void *)BMA456W_INT_PIN);
xTaskCreate(read_sensor_task, "READ_SENSOR", 4096, NULL, 1, NULL);
}