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Optimizing Throughput for High-Fidelity (320kbps) MP3 Decoding on STM32 Systems

Hi everyone,I’ve been working on some firmware lately for a media-based project, and I’m looking at the practical limits of decoding high-fidelity mp3 streams (specifically 320kbps CBR) on mid-range MCUs like the STM32U5 series.While standard 128kbps

49 minutes ago

gsmith84099Visitor

STM32 MCUs Wireless

NUCLEO-WL55JC1: LoRaWAN_End_Node_LBM Join Accept Failed with Code 14 (ChirpStack)

Hello ST Community,I am attempting to run the LoRaWAN_End_Node_LBM example project from the STM32CubeWL MCU Firmware Package on a NUCLEO-WL55JC1 board, connecting to a ChirpStack LoRaWAN Network Server.While ChirpStack shows both the Join Request and

361

1 hour ago

lcordierVisitor II

STM32 MCUs Wireless

[LoRaWAN_End_Node_LBM] Process join accept failed with code = 14

I’m trying to make the example LoRaWAN_End_Node_LBM] work on my nucleo-wl55jc1.For now i’ve just changed the DevEUI and AppKey in se-identity.h to match my chirpstack configuration.I can see the join request from my object and the join accept answer

762

1 hour ago

SUMSUM0701Visitor

STM32 MCUs Embedded software

MPU9250 I2C fails with escalating WHOAMI→no-ACK pattern, only power cycle recovers it

Setup: STM32F446RE Nucleo + MPU9250 (I2C1, PB8=SCL/PB9=SDA), breadboard wiring, HAL library, 100kHz standard mode.Symptom progression: Sensor works intermittently. When it fails, I see two distinct failure signatures that seem to escalate:First failu

161

2 hours ago

mdmrl00Associate II

STM32 MCUs Motor control

STM32G431KB TIMER XOR ON/Hall Sensor Mode Not Triggering the PWM Timer

Hello everyone,I am working on a project where I need to control a BLDC motor with integrated hall sensors.I saw this feature on RM0440 Document ‘29.3.28 Timer input XOR function’I decided to use the TIM2 as the ‘Interfacing Timer’ and TIM1 as the PW

13510

2 hours ago

tylerlAssociate

STM32 MCUs Products

VBAT operating voltage range

In later revisions of the stm32n657 datasheet the minimum Vbat has been changed from TBD to 3.0V. Can you shed some light on why 3.0V was chosen? It looks like everything that Vbat powers should theoretically work below 3V(in particular VSW is good

592

2 hours ago

RobJAssociate II

STM32CubeIDE (MCUs)

ST-Link Docker / OpenOCD problem

We are currently shifting from using CubeIDE to a Docker + VS-Code combo and this works great for compiling but debugging still has some challenges.On Linux it seems to work (for the colleagues I spoke to) but on Windows we still have some issues.For

551

2 hours ago

sidisyom_sAssociate II

STM32 MCUs Products

USART issue in loopback mode

Hi 👋I have implemented a simple program to send and receive characters over the USART device which works as expected when I connect my MCU up to minicom via usb as in I can see the characters sent by the program getting printed on the console and I c

1466

3 hours ago

paulrpottsAssociate II

STM32 MCUs Embedded software

Nucleo H563ZI SPI Comms with an ADC: Works with HAL Interrupt APIs, Not with DMA APIs

Hi all - I have a problem getting DMA working with SPI, for communication with an MCP3564R ADC as one task in a complex project running on FreeRTOS. I have made a stripped-down version of the project that just does the ADC reading task. It runs on a

372

4 hours ago

Jeeva_Gen4Associate

Power management

VIPER16LDTR Buck Converter — COMP stuck at 0.75V, very low duty cycle, output 500mV despite correct 60kHz switching1

Hello ST Community,We are using the VIPER16LDTR in a non-isolated buck converter to generate 12VDC from a 325VDC rectified bus. The input is 230VAC from a Variac, rectified to approximately 325VDC through our input rectification stage. The circuit fo

645

5 hours ago

ClaramaeAssociate

Others: hardware and software

Optimizing Throughput for High-Fidelity (320kbps) MP3 Decoding on STM32 Systems

49 minutes ago

gsmith84099Visitor

STM32 MCUs Wireless

NUCLEO-WL55JC1: LoRaWAN_End_Node_LBM Join Accept Failed with Code 14 (ChirpStack)

361

1 hour ago

lcordierVisitor II