STM32 MCUs Products

NUCLEO-H755ZI-Q does not boot at 480 MHz after power-on; OK after reset

Hello,I am using NUCLEO-H755ZI-Q (STM32H755) and I am observing a reproducible boot issue related to high system clock frequency.1. Hardware / EnvironmentBoard: NUCLEO-H755ZI-QMCU: STM32H755Power supply: USB (on-board)Debugger: ST-LINK (Connect under...

STM32h7s7: CubeIde Indexing lost after adding external loader in IOC file

Hello there,I'm trying to create a project for stm32h7s7 with external loader. But when i added the external loader in IOC file the all indexes were lost in editor mode. But I checked for building, i can't see any problem. I tried index -> rebuild bu...

Hint on STM32G030x6/x8 Errata: Boot select after debug interface connection (empty device)

The Errata sheet for STM32G030x6/x8, ES0486 - Rev 6, states in chapter 2.2.9:After connecting the debug interface and until the device power-down, the boot source upon reset or wakeup from a low-power mode is determined by the PA14-BOOT0 pin level be...

Resolved! STM32H7R7: How to setup XSPI for external nor flash AT25XE321D

Hi,The external nor flash AT25XE321D is 32Mbits, support quad IO/XIP spi operation, max. 133MHz Freq. Std. JEDEC/SFDP. It is connected to STM32H7R7Z8J6 with with XSPI1 port-1 interface.I am using MX v6.116.1 to setup project for my board. By IDE v2.0...

CAN Loopback on STM32L431KCU Issue

I am trying to get the CAN Loopback up and running on my STM32L431KCU (CAN1), I have tried to follow the: Guide to CAN (bxCAN/CAN2.0) configuration in Loop back mode on STM32 MCUs. But I am getting stuck in the "HAL_CAN_Start()" function where its wa...

Encountering garbage values when programming with LoRa module

TL;DR: The receiver ESP32-LoRa node is showing garbage values instead of accelerometer values. The STM32 - LoRa sender node does read correct values from the MPU6050 sensor, as we confirmed that through PuTTY. .ioc configuration Context: So I am tryi...

STM32F446ZCT6 CAN Bus goes to Bus-Off state

Hi everyone, I am facing an issue with CAN communication on STM32F446ZCT6, where the CAN controller frequently enters the Bus-Off state. Hardware Details MCU: STM32F446ZCT6 CAN Transceiver: (TJA1042T) I am working with CAN communication on STM32F4...

STM32H750 and USB3300-EZK has stopped working

I designed a board that uses a STM32H750 with a USB3300-EZK that has stopped communicating over USB. It's been having intermittent issues for the last day or so (sometimes I'd need to power cycle the board before it would show up, but then it would w...

stm32u073k8 No VLCD pin

I'm using the LCD of the STM32U073K8, but the program failed to initialize the LCD. After checking, I found that the STM32U073K8 doesn't have the VLCD pin. Is the STM32U073K8 not compatible with the LCD peripheral? Or are there other settings?