I struggle to use PDM Filter library.
This is the message error I get :
It's still not working :\
In "Paths and Symbols", in libraries, I think I can add a library but I don't know which one to use (all the files were included in mems1 folder). I tried randomly picking but I had another error message;
1 ACCEPTED SOLUTION
Accepted Solutions
I'm using STM32CubeIde 1.8.0 and for the library I took one from memsmic1_v5.6.0.
Maybe I'm doing something wrong with the library because when I do this :
I get this message error :
c:\st\stm32cubeide_1.8.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.9-2020-q2-update.win32_2.0.0.202105311346\tools\arm-none-eabi\bin\ld.exe: cannot find -lC:/Users/username/STM32CubeIDE/workspace_1.8.0/MEMS/PDM/Lib/libPDMFilter_CM4_Keil_wc16.lib
Hi, I am trying to use the pdm2pcm code to get the audio from MEMS I2S interface mics SPH0645LM4H.
I am getting this error during build.
Description Resource Path Location Type
C:/Users/mylaptop/STM32CubeIDE/workspace_1.14.0/audio_mic_I2S/Debug/../Middlewares/ST/STM32_Audio/Addons/PDM/Inc/pdm2pcm_glo.c:31: undefined reference to `PDM_Filter_setConfig' audio_mic_I2S C/C++ Problem
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2024 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 "stdio.h"
#include "pdm2pcm_glo.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 ---------------------------------------------------------*/
I2S_HandleTypeDef hi2s1;
DMA_HandleTypeDef hdma_spi1_rx;
/* USER CODE BEGIN PV */
int16_t data_i2s[100];
volatile int16_t sample_i2s;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_I2S1_Init(void);
/* USER CODE BEGIN PFP */
static void MX_PDM2PCM_Init(void);
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* 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_DMA_Init();
MX_I2S1_Init();
MX_PDM2PCM_Init();
/* USER CODE BEGIN 2 */
HAL_I2S_Receive_DMA(&hi2s1, (uint16_t *)data_i2s , sizeof(data_i2s)/2);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
// printf("Hello World!\r\n");
HAL_GPIO_TogglePin(GPIOA, GPIO_PIN_3);
HAL_Delay(1000);
}
/* 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_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 100;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 2;
RCC_OscInitStruct.PLL.PLLR = 2;
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_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief I2S1 Initialization Function
* @PAram None
* @retval None
*/
static void MX_I2S1_Init(void)
{
/* USER CODE BEGIN I2S1_Init 0 */
/* USER CODE END I2S1_Init 0 */
/* USER CODE BEGIN I2S1_Init 1 */
/* USER CODE END I2S1_Init 1 */
hi2s1.Instance = SPI1;
hi2s1.Init.Mode = I2S_MODE_MASTER_RX;
hi2s1.Init.Standard = I2S_STANDARD_PHILIPS;
hi2s1.Init.DataFormat = I2S_DATAFORMAT_16B_EXTENDED;
hi2s1.Init.MCLKOutput = I2S_MCLKOUTPUT_DISABLE;
hi2s1.Init.AudioFreq = I2S_AUDIOFREQ_32K;
hi2s1.Init.CPOL = I2S_CPOL_LOW;
hi2s1.Init.ClockSource = I2S_CLOCK_PLL;
hi2s1.Init.FullDuplexMode = I2S_FULLDUPLEXMODE_DISABLE;
if (HAL_I2S_Init(&hi2s1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN I2S1_Init 2 */
/* USER CODE END I2S1_Init 2 */
}
/**
* Enable DMA controller clock
*/
static void MX_DMA_Init(void)
{
/* DMA controller clock enable */
__HAL_RCC_DMA2_CLK_ENABLE();
/* DMA interrupt init */
/* DMA2_Stream0_IRQn interrupt configuration */
HAL_NVIC_SetPriority(DMA2_Stream0_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(DMA2_Stream0_IRQn);
}
/**
* @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_GPIOA_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3, GPIO_PIN_RESET);
/*Configure GPIO pin : PA3 */
GPIO_InitStruct.Pin = GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
/* USER CODE BEGIN 4 */
PDM_Filter_Handler_t PDM_Filter_Handler[4];
PDM_Filter_Config_t PDM_Filter_Config[4];
static void MX_PDM2PCM_Init(void)
{
/*Enables and resets CRC-32 from STM32 HW */
__HAL_RCC_CRC_CLK_ENABLE();
CRC->CR = CRC_CR_RESET;
for (uint8_t index = 0; index < 4; index++)
{
PDM_Filter_Handler[index].bit_order = PDM_FILTER_BIT_ORDER_LSB;
PDM_Filter_Handler[index].endianness = PDM_FILTER_ENDIANNESS_BE;
PDM_Filter_Handler[index].high_pass_tap = 2122358088;
PDM_Filter_Handler[index].out_ptr_channels = 1;
PDM_Filter_Handler[index].in_ptr_channels = 1;
PDM_Filter_Init((PDM_Filter_Handler_t *)(&PDM_Filter_Handler[index]));
PDM_Filter_Config[index].output_samples_number = 16;
PDM_Filter_Config[index].mic_gain = 24;
PDM_Filter_Config[index].decimation_factor = PDM_FILTER_DEC_FACTOR_64;
PDM_Filter_setConfig((PDM_Filter_Handler_t *)&PDM_Filter_Handler[index], &PDM_Filter_Config[index]);
}
}
void HAL_I2S_RxCpltCallback(I2S_HandleTypeDef *hi2s)
{
sample_i2s = data_i2s[0];
}
/* 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 */
