STM32 MCUs Embedded software

STM32F446RCT6 with FatFS + HSB Host (USB OTG HS) falls in infinite loop

Hello, I have a design with an STM32F446RCT6 where I use the FatFS file system and the USB HS as USB Host in Mass Storage Host Class.The design is made with STM32CubeIDE 1.8.0 and the firmware package is V1.26.2 / 16-july-2021.The configuration param...

Has anyone managed to get a USBX audio device working on STM32 MCU? Do any official examples exist?

I am trying to implement a USB audio device using ThreadX/AZURE and USBX, mostly by following instructions from: https://docs.microsoft.com/en-us/azure/rtos/usbx/usbx-device-stack-supplemental-2#usb-device-audio-class It's been pretty frustrating, un...

LwIP tcp_write() function returns ERR_MEM after running for a while

I am running a tcp server in STM32H753 MCU using LwIP driver. LwIP raw APIs are used for setting up the server. The server is sending a packet of size 200 bytes every 200ms.Ther server is connected to a single client(application running on an linux P...

How is CMSIS DSP and NN library implement using SIMD instruction and FPU?

I came across a documentation stating that arm m4+ processors have CMSIS DSP api that is implemented with SIMD instructions. When we try to take the library file to use it there are 2 variants single precision and doubles precision FPU. I assumed tha...

STM32F7508-DK Communication with computer.

Dear All,i'm try to working on this beautiful discovery kit. I was able to create a simple gui in touchGFX with some buttons and managing virtual functions to set a text variable to some letters string. I'm now trying to send these texts to my pc usi...

Access FD-CAN bootloader from classic CAN transceiver

I'm in situation ​programming STM32L552 (FD-CAN) MCU from classic CAN (CAN 2.0B) transceiver host through CAN communication line. According to AN5405, this kind of bootloader doesn't be compatible with classic CAN. However, for avoiding my hardware c...

I am using STM32 microcontroller and I am facing problem of DFU/RESET Switch that after booting the controller by reset pin the DFU mode is not detect. what is the possible solution of this?