STM32 MCUs Other solutions

Question about the aPDMBuffer array in the STM32 smartmic firmware. In what format are the samples of the two Digital MEMS channels stored in the aPDMBuffer array? Are the samples arranged in an alternative fashion in the aPDMBuffer array?

 Does aPDMBuffer[0] refer to mic1 sample and aPDMBuffer[1] refer to mic 2 sample?

Official ST example : How to do the .wav file conversion to use it with the I2S on stm32f2xx

Hello ST community,I am looking at the official ST example from en.stsw-stm32062_F2\STM32F2xx_StdPeriph_Lib_V1.1.0\Project\STM32F2xx_StdPeriph_Examples\I2S\Audioand the file audio_sample.c which has been extracted from here : https://archive.org/down...

hello! i want to know the code of adc and dac that how i can convert real time sound audio frequency and then again convert it int analog signal using dac on output . can anyone help me in its code and which libraries i would need.using stm32f4

Using PDM to PCM conversion library

I am using a STM32L1 MCU and I want to use the PDM to PCM conversion library, so I downloaded X-CUBE-MEMSMIC1, in the audio PDM lib folder I found libPDMFilter_CM3_Keil.lib. In the release note I read this lib is for 16KHz PCM data sampling rate, So ...

STM32F4 I2S clock configuration for stereo PDM

Hi guys,I have an STM32F412 discovery board and am attempting to find the best solution for connecting 8xPDM microphones in 4xStereo pairs and writing the resulting WAV to USB. The method I'm currently attempting is:Use 4xI2S peripherals, each with 2...

How to store I2S data into SD card in STM32f407?

Hi i have a Quad Ana log-to-Digital Converter (ADC)(ADAU1978). I have to interface the same with STM32F407 discovery board by using I2C. The output of the ADAU1978 quad ADC is in I2S mode . Now i want to store the I2S output data into SD card. How do...

Some questions about using stm32f411 discovery with i2s audio and pdm2pcm library

Hi, I am using stm32f411 discovery board with i2s mems microphone, I am using hal library and pdm2pcm librray, I have referred to audio record and play back examples, application notes, and I still have the following questions:It seems that the user ...

STM32F411E-DISCO Audio application Atollic compile woes

We have a new STM32F411E-DISCO kit and are trying to run the Audio playback and record application.I have imported the SW4STM32 project but I keep getting errors with missing files - usually the following:stm32f411e_discovery_accelerometer.c..\Common...

STM32F446 MP3 Player MCU Usage

Hi everyone, I'm developing an HMI with STM32F446. it has 800x480 display as well as a stack for communicating the devices with the CAN. Also, this stack must be updated in 4 milliseconds. Now also needing mp3 player and radio. For radio, a IC can be...