LSM6DSV16X does not generate INT1 interrupt.

[heesu]

Hello.

I am using an STM32H562VI board with an LSM6DSV16X sensor,

and when I read the whoami value, it reads as 71.

I configured the register as follows to check the interrupt on INT1.

/* Enable Block Data Update */
lsm6dsv16x_block_data_update_set(&dev_ctx, PROPERTY_ENABLE); 
pin_int.wakeup = PROPERTY_ENABLE;

lsm6dsv16x_pin_int1_route_set(&dev_ctx, &pin_int);
//lsm6dsv16x_pin_int2_route_set(&dev_ctx, &pin_int);

irq.enable = 1;
irq.lir = 1;
lsm6dsv16x_interrupt_enable_set(&dev_ctx, irq);

lsm6dsv16x_filt_xl_fast_settling_set(&dev_ctx, 1);
lsm6dsv16x_mask_trigger_xl_settl_set(&dev_ctx, 1);
lsm6dsv16x_filt_wkup_act_feed_set(&dev_ctx, LSM6DSV16X_WK_FEED_HIGH_PASS);
wu.inactivity_cfg.inact_dur = 0;
wu.inactivity_cfg.xl_inact_odr = 1;
wu.inactivity_cfg.wu_inact_ths_w = 3; /* threshold resolution to 62.5 mg */
wu.inactivity_ths = 0;
wu.threshold = 1;
wu.duration = 0;
lsm6dsv16x_act_thresholds_set(&dev_ctx, &wu);

/* Set Output Data Rate.*/
lsm6dsv16x_xl_data_rate_set(&dev_ctx, LSM6DSV16X_ODR_AT_480Hz);
/* Set full scale */
lsm6dsv16x_xl_full_scale_set(&dev_ctx, LSM6DSV16X_2g);

 

 

The LSM6DSV16X does not generate interrupts.

The same code above works fine with interrupts on the LSM6DSV32X sensor when only the ID (0x70) is set.

Is there a difference in the configuration or register settings between the LSM6DSV16X and LSM6DSV32X?

 

Which part should I check more?

Thanks.

---

Edited to apply source code formatting - please see How to insert source code for future reference.

[Federica Bossi]

Hi @heesu ,

The power on sequence for both the devices is the same and they both have whomai value 70.

Can you try to implement our official PID and let me know if you read LSM6DSV16X whoami correctly?

Thanks!

[heesu]

Hi,  @Federica Bossi

It was implemented using the official PID.
However, the whoami value for the LSM6DSV16X is 71.

/* USER CODE BEGIN Header */
/**
 ******************************************************************************
 * @file : main.c
 * @brief : Main program body
 ******************************************************************************
 * @attention
 *
 * Copyright (c) 2025 STMicroelectronics.
 * All rights reserved.
 *
 * This software is licensed under terms that can be found in the LICENSE file
 * in the root directory of this software component.
 * If no LICENSE file comes with this software, it is provided AS-IS.
 *
 ******************************************************************************
 */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <string.h>
#include <stdio.h>
#include "lsm6dsv16x_reg.h"
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */

/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

I2C_HandleTypeDef hi2c3;

UART_HandleTypeDef huart1;
UART_HandleTypeDef huart3;

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_I2C3_Init(void);
static void MX_USART1_UART_Init(void);
static void MX_USART3_UART_Init(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* Define communication interface */
#define SENSOR_BUS hi2c3
/* Private macro -------------------------------------------------------------*/
#define BOOT_TIME 10 //ms

/* Private variables ---------------------------------------------------------*/
static uint8_t whoamI;
static uint8_t tx_buffer[1000];

static lsm6dsv16x_interrupt_mode_t irq;
static lsm6dsv16x_act_thresholds_t wu;


int _write(int file, char* p, int len){
	HAL_UART_Transmit(&huart3, (uint8_t*)p, len, 10);
	return len;
}

static int32_t platform_write(void *handle, uint8_t reg, const uint8_t *bufp,
 uint16_t len);
static int32_t platform_read(void *handle, uint8_t reg, uint8_t *bufp,
 uint16_t len);
static void tx_com( uint8_t *tx_buffer, uint16_t len );
static void platform_delay(uint32_t ms);
static void platform_init(void *handle);

static stmdev_ctx_t dev_ctx;
static uint8_t wu_event_catched = 0;

void lsm6dsv16x_wakeup_handler(void)
{
 lsm6dsv16x_all_sources_t status;

 /* Read output only if new xl value is available */
 lsm6dsv16x_all_sources_get(&dev_ctx, &status);

 if (status.wake_up) {
 wu_event_catched = 1;
 }
}

/* USER CODE END 0 */

/**
 * @brief The application entry point.
 * @retval int
 */
int main(void)
{

 /* USER CODE BEGIN 1 */
 lsm6dsv16x_pin_int_route_t pin_int;
 dev_ctx.write_reg = platform_write;
 dev_ctx.read_reg = platform_read;
 dev_ctx.mdelay = platform_delay;
 dev_ctx.handle = &SENSOR_BUS;
 /* USER CODE END 1 */

 /* MCU Configuration--------------------------------------------------------*/

 /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
 HAL_Init();

 /* USER CODE BEGIN Init */

 /* USER CODE END Init */

 /* Configure the system clock */
 SystemClock_Config();

 /* USER CODE BEGIN SysInit */

 /* USER CODE END SysInit */

 /* Initialize all configured peripherals */
 MX_GPIO_Init();
 MX_I2C3_Init();
 MX_USART1_UART_Init();
 MX_USART3_UART_Init();
 /* USER CODE BEGIN 2 */
 /* Init test platform */
 platform_init(dev_ctx.handle);

 /* Wait sensor boot time */
 platform_delay(BOOT_TIME);

 /* Check device ID */
 lsm6dsv16x_device_id_get(&dev_ctx, &whoamI);

 printf("whoamI %x \n", whoamI);

 if (whoamI != LSM6DSV16X_ID)
 while (1);

 /* Restore default configuration */
 lsm6dsv16x_sw_por(&dev_ctx);

 /* Enable Block Data Update */
 lsm6dsv16x_block_data_update_set(&dev_ctx, PROPERTY_ENABLE);

 pin_int.wakeup = PROPERTY_ENABLE;
 lsm6dsv16x_pin_int1_route_set(&dev_ctx, &pin_int);
 //lsm6dsv16x_pin_int2_route_set(&dev_ctx, &pin_int);

 irq.enable = 1;
 irq.lir = 1;
 lsm6dsv16x_interrupt_enable_set(&dev_ctx, irq);

 lsm6dsv16x_filt_xl_fast_settling_set(&dev_ctx, 1);
 lsm6dsv16x_mask_trigger_xl_settl_set(&dev_ctx, 1);
 lsm6dsv16x_filt_wkup_act_feed_set(&dev_ctx, LSM6DSV16X_WK_FEED_HIGH_PASS);

 wu.inactivity_cfg.inact_dur = 0;
 wu.inactivity_cfg.xl_inact_odr = 1;
 wu.inactivity_cfg.wu_inact_ths_w = 3; /* threshold resolution to 62.5 mg */
 wu.inactivity_ths = 0;
 wu.threshold = 1;
 wu.duration = 0;
 lsm6dsv16x_act_thresholds_set(&dev_ctx, &wu);

 /* Set Output Data Rate.*/
 lsm6dsv16x_xl_data_rate_set(&dev_ctx, LSM6DSV16X_ODR_AT_480Hz);
 /* Set full scale */
 lsm6dsv16x_xl_full_scale_set(&dev_ctx, LSM6DSV16X_2g);

 /* USER CODE END 2 */

 /* Infinite loop */
 /* USER CODE BEGIN WHILE */
 while (1)
 {
 /* USER CODE END WHILE */

 /* USER CODE BEGIN 3 */
 if (wu_event_catched) {
	 wu_event_catched = 0;

	 snprintf((char *)tx_buffer, sizeof(tx_buffer), "Wakeup event\r\n");
	 tx_com(tx_buffer, strlen((char const *)tx_buffer));
	}
 }
 /* USER CODE END 3 */
}

/**
 * @brief System Clock Configuration
 * @retval None
 */
void SystemClock_Config(void)
{
 RCC_OscInitTypeDef RCC_OscInitStruct = {0};
 RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

 /** Configure the main internal regulator output voltage
 */
 __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE0);

 while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}

 /** Initializes the RCC Oscillators according to the specified parameters
 * in the RCC_OscInitTypeDef structure.
 */
 RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_CSI;
 RCC_OscInitStruct.CSIState = RCC_CSI_ON;
 RCC_OscInitStruct.CSICalibrationValue = RCC_CSICALIBRATION_DEFAULT;
 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
 RCC_OscInitStruct.PLL.PLLSource = RCC_PLL1_SOURCE_CSI;
 RCC_OscInitStruct.PLL.PLLM = 1;
 RCC_OscInitStruct.PLL.PLLN = 125;
 RCC_OscInitStruct.PLL.PLLP = 2;
 RCC_OscInitStruct.PLL.PLLQ = 2;
 RCC_OscInitStruct.PLL.PLLR = 2;
 RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1_VCIRANGE_2;
 RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1_VCORANGE_WIDE;
 RCC_OscInitStruct.PLL.PLLFRACN = 0;
 if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
 {
 Error_Handler();
 }

 /** Initializes the CPU, AHB and APB buses clocks
 */
 RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
 |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2
 |RCC_CLOCKTYPE_PCLK3;
 RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
 RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
 RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
 RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
 RCC_ClkInitStruct.APB3CLKDivider = RCC_HCLK_DIV1;

 if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
 {
 Error_Handler();
 }

 /** Configure the programming delay
 */
 __HAL_FLASH_SET_PROGRAM_DELAY(FLASH_PROGRAMMING_DELAY_2);
}

/**
 * @brief I2C3 Initialization Function
 * @param None
 * @retval None
 */
static void MX_I2C3_Init(void)
{

 /* USER CODE BEGIN I2C3_Init 0 */

 /* USER CODE END I2C3_Init 0 */

 /* USER CODE BEGIN I2C3_Init 1 */

 /* USER CODE END I2C3_Init 1 */
 hi2c3.Instance = I2C3;
 hi2c3.Init.Timing = 0x60808CD3;
 hi2c3.Init.OwnAddress1 = 0;
 hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
 hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
 hi2c3.Init.OwnAddress2 = 0;
 hi2c3.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
 hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
 hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
 if (HAL_I2C_Init(&hi2c3) != HAL_OK)
 {
 Error_Handler();
 }

 /** Configure Analogue filter
 */
 if (HAL_I2CEx_ConfigAnalogFilter(&hi2c3, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
 {
 Error_Handler();
 }

 /** Configure Digital filter
 */
 if (HAL_I2CEx_ConfigDigitalFilter(&hi2c3, 0) != HAL_OK)
 {
 Error_Handler();
 }
 /* USER CODE BEGIN I2C3_Init 2 */

 /* USER CODE END I2C3_Init 2 */

}

/**
 * @brief USART1 Initialization Function
 * @param None
 * @retval None
 */
static void MX_USART1_UART_Init(void)
{

 /* USER CODE BEGIN USART1_Init 0 */

 /* USER CODE END USART1_Init 0 */

 /* USER CODE BEGIN USART1_Init 1 */

 /* USER CODE END USART1_Init 1 */
 huart1.Instance = USART1;
 huart1.Init.BaudRate = 115200;
 huart1.Init.WordLength = UART_WORDLENGTH_8B;
 huart1.Init.StopBits = UART_STOPBITS_1;
 huart1.Init.Parity = UART_PARITY_NONE;
 huart1.Init.Mode = UART_MODE_TX_RX;
 huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
 huart1.Init.OverSampling = UART_OVERSAMPLING_16;
 huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
 huart1.Init.ClockPrescaler = UART_PRESCALER_DIV1;
 huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
 if (HAL_UART_Init(&huart1) != HAL_OK)
 {
 Error_Handler();
 }
 if (HAL_UARTEx_SetTxFifoThreshold(&huart1, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
 {
 Error_Handler();
 }
 if (HAL_UARTEx_SetRxFifoThreshold(&huart1, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
 {
 Error_Handler();
 }
 if (HAL_UARTEx_DisableFifoMode(&huart1) != HAL_OK)
 {
 Error_Handler();
 }
 /* USER CODE BEGIN USART1_Init 2 */

 /* USER CODE END USART1_Init 2 */

}

/**
 * @brief USART3 Initialization Function
 * @param None
 * @retval None
 */
static void MX_USART3_UART_Init(void)
{

 /* USER CODE BEGIN USART3_Init 0 */

 /* USER CODE END USART3_Init 0 */

 /* USER CODE BEGIN USART3_Init 1 */

 /* USER CODE END USART3_Init 1 */
 huart3.Instance = USART3;
 huart3.Init.BaudRate = 115200;
 huart3.Init.WordLength = UART_WORDLENGTH_8B;
 huart3.Init.StopBits = UART_STOPBITS_1;
 huart3.Init.Parity = UART_PARITY_NONE;
 huart3.Init.Mode = UART_MODE_TX_RX;
 huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
 huart3.Init.OverSampling = UART_OVERSAMPLING_16;
 huart3.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
 huart3.Init.ClockPrescaler = UART_PRESCALER_DIV1;
 huart3.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
 if (HAL_UART_Init(&huart3) != HAL_OK)
 {
 Error_Handler();
 }
 if (HAL_UARTEx_SetTxFifoThreshold(&huart3, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
 {
 Error_Handler();
 }
 if (HAL_UARTEx_SetRxFifoThreshold(&huart3, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
 {
 Error_Handler();
 }
 if (HAL_UARTEx_DisableFifoMode(&huart3) != HAL_OK)
 {
 Error_Handler();
 }
 /* USER CODE BEGIN USART3_Init 2 */

 /* USER CODE END USART3_Init 2 */

}

/**
 * @brief GPIO Initialization Function
 * @param None
 * @retval None
 */
static void MX_GPIO_Init(void)
{
 GPIO_InitTypeDef GPIO_InitStruct = {0};
 /* USER CODE BEGIN MX_GPIO_Init_1 */

 /* USER CODE END MX_GPIO_Init_1 */

 /* GPIO Ports Clock Enable */
 __HAL_RCC_GPIOC_CLK_ENABLE();
 __HAL_RCC_GPIOB_CLK_ENABLE();
 __HAL_RCC_GPIOD_CLK_ENABLE();
 __HAL_RCC_GPIOA_CLK_ENABLE();

 /*Configure GPIO pin Output Level */
 HAL_GPIO_WritePin(GPIOB, GPIO_PIN_8|GPIO_PIN_9, GPIO_PIN_RESET);

 /*Configure GPIO pins : INT2_PIN_Pin INT1_PIN_Pin */
 GPIO_InitStruct.Pin = INT2_PIN_Pin|INT1_PIN_Pin;
 GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
 GPIO_InitStruct.Pull = GPIO_NOPULL;
 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

 /*Configure GPIO pins : PA9 PA10 */
 GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
 GPIO_InitStruct.Pull = GPIO_NOPULL;
 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
 GPIO_InitStruct.Alternate = GPIO_AF3_LPUART1;
 HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

 /*Configure GPIO pins : PB8 PB9 */
 GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9;
 GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
 GPIO_InitStruct.Pull = GPIO_NOPULL;
 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
 HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

 /* EXTI interrupt init*/
 HAL_NVIC_SetPriority(EXTI1_IRQn, 0, 0);
 HAL_NVIC_EnableIRQ(EXTI1_IRQn);

 HAL_NVIC_SetPriority(EXTI13_IRQn, 0, 0);
 HAL_NVIC_EnableIRQ(EXTI13_IRQn);

 /* USER CODE BEGIN MX_GPIO_Init_2 */

 /* USER CODE END MX_GPIO_Init_2 */
}

/* USER CODE BEGIN 4 */

void HAL_GPIO_EXTI_Rising_Callback(uint16_t GPIO_Pin)
{

	printf("HAL_GPIO_EXTI_Rising_Callback\n");
	if(GPIO_Pin == INT1_PIN_Pin)
	{
		lsm6dsv16x_wakeup_handler();
		printf("GPIO_INT1_Callback \n");
	}

	if(GPIO_Pin == INT2_PIN_Pin)
	{
		printf("GPIO_INT2_Callback \n");
	}

}


static int32_t platform_write(void *handle, uint8_t reg, const uint8_t *bufp,
 uint16_t len)
{
 HAL_I2C_Mem_Write(handle, LSM6DSV16X_I2C_ADD_L, reg,
 I2C_MEMADD_SIZE_8BIT, (uint8_t*) bufp, len, 1000);
 return 0;
}

static int32_t platform_read(void *handle, uint8_t reg, uint8_t *bufp,
 uint16_t len)
{

 HAL_I2C_Mem_Read(handle, LSM6DSV16X_I2C_ADD_L, reg,
 I2C_MEMADD_SIZE_8BIT, bufp, len, 1000);
 return 0;
}

static void tx_com(uint8_t *tx_buffer, uint16_t len)
{
 HAL_UART_Transmit(&huart3, tx_buffer, len, 1000);
}

static void platform_delay(uint32_t ms)
{
 HAL_Delay(ms);
}

static void platform_init(void *handle)
{

}
/* USER CODE END 4 */

/**
 * @brief This function is executed in case of error occurrence.
 * @retval None
 */
void Error_Handler(void)
{
 /* USER CODE BEGIN Error_Handler_Debug */
 /* User can add his own implementation to report the HAL error return state */
 __disable_irq();
 while (1)
 {
 }
 /* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
 * @brief Reports the name of the source file and the source line number
 * where the assert_param error has occurred.
 * @param file: pointer to the source file name
 * @param line: assert_param error line source number
 * @retval None
 */
void assert_failed(uint8_t *file, uint32_t line)
{
 /* USER CODE BEGIN 6 */
 /* User can add his own implementation to report the file name and line number,
 ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
 /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

Is there any LSM6DSV16X product with a whoami value of 71?

Thanks!