STM32 MCUs Embedded software

Hi! I've got a very strange behaviour of stm32g431. Sometimes, when I plug my device into USB port, it doesn't start, becoming completely non-functional. When I try to reprogram it, openocd shows that device is protected

processing full erase cycle helps, but still have no idea, why device enters such condition!Please help!

I'm using stm32u5 and azurertos system. In a thread, I do this instruction <sprintf(g_test,"phase%d\n",g_frame);> where <char g_test[20]> and <u8 g_frame> and a hard fault is generated. Any suggestion, please?

Getting started with analog, STM32F769I-DISCO. undefined reference to wm8994_drv

I am trying this example on my STM32F769I-DISCO. I followed the given tutorial for adding the dependecy. wm8994 is in ../Components/wm8994/wm8994.h. But when building the code I am getting ../stm32disco/test2_audioread/Debug/../Core/Src/main.c:1263: ...

I have an issue with STM32L552 USB library. After sending an HID message once, the usb will send empty packets indefinitely (len=27, data len =0).

This is the data I recorded with WireShark. As shown in the picture, when I send HID packet once (len=91), the USB will send empty data packets indefinitely (len=27), then trying to send packets from host to device (out direction) will cause the tran...

STM32H750 RTC wakeup timer not periodically triggered

Hi,​I am using RTC with LSE (32.768Khz) in my product, and I programed RTC wakeup timer to 5min by calling HAL_RTCEx_SetWakeUpTimer_IT(&hrtc, 300, RTC_WAKEUPCLOCK_CK_SPRE_16BITS);It works perfectly on my test machine, but it will not trigger on my cu...

Is there a simple example how to combine USB CDC device and FreeRTOS ?

I am trying to implement a cdc device and would also like to use the FreeRTOS. For code generation I use CubeMX. To keep the interrupt of the receives as short as possible I want to send the answer to the host using a task. But after a few seconds my...

Two STM32F4-discovery boards unable to communicate over CAN

Hi,I am new to HAL libraries and currently working on a small CAN bus consisting of two STM32F4-discovery boards connected to a CAN transceiver connected to the bus. Both transceivers are externally powered with 5V.So far, I tried the existing CAN ex...

going from normal SPI to dma, no call back.

I got my SPI5 running the way I want it but now I want to move to DMA. When I do this the SPI lines remain low after sending its data. So I assume my config is off. Using the IOC to make changes I only see the fowling added.    /* SPI5 DMA Init */   ...