STM32 MCUs Other solutions

Using MP45DT02 on STM32F407 Discover board to save data using DMA.

I am wanting to sample the MP45DT02 microphone data. I am very much a beginner with this but I have cobbled together some code from some examples. Any input as to why I am not able to see any data through the DMA would be greatly appreciated. DMA_In...

Resolved! HAL_I2S_Receive gives 0s although codec transmits data

Hello!For a week i've been trying to configure my stm32f302cbt6 and the tlv320aic3254 codec to trasmit data to the mcu through i2s_ext_sd but HAL_I2S_Receive returns 0s to the buffer although i see data coming out of the codec. I have configured i2s2...

STM32F769I Discovery board example project, voice output using speaker

Greetings to the ST community,I was using the example project provided by ST in "STM32F769I-Discovery\Applications\Audio\Audio_playback_and_record\EWARM" and found out that voice was being output through the headphones. However I connected speakers t...

Stereo PDM microphones(2 mics) data acquisition using PDM2PCM middleware, i want to find code example for such situation.

Hello, i would like to know how to use your PDM2PCM middleware for 2 microphones processing data, if you have some examples for it - it would be perfect.I was able to get the good sound for mono(with 1 mic) when i get the board for stereo sound, i ca...

STM32L552ZE-Q: SAI - I2S, problem on FS signal

Hi, I'm using SAI in I2S mode to play stereo wav file. Audio Data is sent to TAS5722l which is a Mono Audio amplifier. My problem is that the FS (Frame Synchronization) signal stays always at level High. This results in a stereo audio file being play...

Resolved! CubeMX has no NVIC (interrupt) setting for I2S unit 1,4,5 ?

I am using the CubeMX to set up a STM32F413 to receive audio signal form the I2S unit 1 . But then I found that the CubeMX do not allow set up of NVIC for unit 1, 4,5 of the I2S. Only unit 2,3 which have full duplex function have NVIC setting. This m...

STM32F107 read MP34DT05-A mic on I2S

I am working on STM32F107 to read MP34DT05-A mems mic on I2S. I have tried any configuration setting with `pdm2pcm.c` and i2s.c but nothing shows the expected result.The expected result is positive int value. This is what i did so far:i2s3 (SPI3) set...

I have some questions about PDM2PCM library settings.

I tried to use the PDM2PCM library in the STM32L432.I have some questions about PDM2PCM library.1.The values set by an output buffer in the function PDM_Filter().We must use values in the output buffer (= PCM data stream) as uint or int ?2.I am not a...

Does anyone know software which can convert my audio .wav file to C code? I'm trying to use i2s on my stm32 board but the output i am getting is gibberish audio. Currently I have used Wav to code software but i'm not satisfied with it.

Issues with PDM mono microphone with I2S

Dear all,I have some trouble setting up the correct acquisition of the MEMS microphone over I2S.Consider the STM32F401RE Nucleo board connected to the IMP34DT05 PDM microphone with L/R to GND.Through Mx, the I2S peripheral is configured as follows:Th...