Hello everyone,I'm currently working on a project using the STM32H723VE microcontroller and have encountered a problem with the SAI1 peripheral. Previously, I developed my code on the STM32H723ZG Nucleo and everything worked perfectly, including the ...
Hi, I am unable to communicate via i2c with the TLV320AIC3104IRHBR chip, the bus response is always busy. I'm just using the STM's internal pullup, I check it on the oscilloscope and the pins are high but no communication happens. Below is my i2c con...
Not just an idea, something to verify:"PDM microphone via USB or Network"Instead of doing the PDM2PCM conversion (inside MCU) - send the PDM bit stream to a host PC at it is. We can do the PDM to PCM conversion, e.g. with Python scripts, on a host PC...
Hi, in my current audio processing set up I have a CODEC set as master connected to my STM32F446RE (slave). The current configuration utilizes I2S DMA interrupt callbacks to handle the input and processing of these samples received. The CODEC receive...
Hello,I'm working on an audio application using a NUCLEO-H723ZG, where I am trying to setup two DMA channels for full duplex audio. I am using the Zephyr RTOS with a modified I2S driver I am writing since the one in mainline zephyr is non-functional ...
Hello guys, I'm testing a PDM mic with the nucleo-h723gz to capture in polling mode. Now I tested it with the I2S peripheral and I don't have any problem at all. But when i try to use the SPI I don't get any data: my buffer remain empty and the regis...
I have compared my platforms using PDM microphones related to PDM to PCM and filtering:Platform 1:STM32H747 (Portenta H7), with SW PDM2PCM filter (and optional to add post-processing)Platform 2:STM32U5A5 with ADF filter (in MCU) or external PCMD3180 ...
This is more an experience report.I want to get audio from an INput source and forward to an OUTput sink. And both should stay in sync "forever" (I do not want to have a clock drift, I do not want to have the condition to skip a sample or to add one,...
Hello. I built a project with STM32F407 DISCO board, I record audio and store it in USB OTG for later playbacks... Anyways, I've been using the onboard MEMS mic as well as the 3.5 audio jack. But I want to replace those for an electret mic and a tiny...
Hello, I'm new to the forum and I want to ask about how to make the I2S connection between an STM32F441RETx and an SSM2604 Audio CODEC.Here are the corrections:My doubt is on how I should connect the Serial Data pins from the CODEC to the MCU. Should...