STM32 MCUs Embedded software

STM32f7 USB HS Device mode DMA

Hi,For USB HS device mode DMA to work correctly, we need to consider:1- address alignment (4byte align due to hardware design) ... OTG_D(I/O)DMAx registers2- size of data (not recommended but can be set in byte size using HBSTLEN in OTG_GAHBCFG regis...

I built project on stm32f745 and used plugins of FreeRTOS+LwIP. When I send small packet, I haven't got problem, but when I try send big packet I lose tcp packets. I attache file from wireshark. Where could I made of mistake?

Why Lower Layer(ll_usart & ll_gpio)is used in the Open bootloader project? can we use hal_uart & hal_gpio for this project?

I'm doing an Open bootloader project for STM32L4R5ZI MCU, I don't want to use lower layer configurations for Usart, so how should I adapt the open bootloader project for my controller, what are the changes i need to do?

STM32f401RC USB mass storage host issue?

I am using an stm32f401rc microcontroller, peripheral USB mass storage host is not detected, I am generating code as per the USB MSC HOST labs document.MX_USB_HOST_Process(); switch(Appli_state) { case APPLICATION_IDLE: break; case APPLICATION_START:...

USB HID implementation error: DEVICE_DESCRIPTOR_FAILURE:00FF2000

Hi,I have massive trouble while implementing USB HID on a STM32F373.I use the CubeIDE, made a new project configured the USB pins and the USB Device middleware as „Custom Human Interface Device Class„.The report descriptor has a length of 37 Byte and...

How to integrate slow-write (SPI) FLASH into STM32 USB device library, to return "OK" CSW when FLASH write finishes?

Currently I have it working, but while the FLASH READ is about 200us and can be done wholly inside STORAGE_Read_FS (which is within an ISR), the FLASH WRITE takes ~17ms and while it works fine done wholly inside STORAGE_Write_FS, it needs the disabli...

I am going to design HID Keyboard using STM32F072RBT6. I used a generic keyboard descriptor, it is working fine but on this keyboard, I want to add brightness and volume increment and decrement buttons please help me how can I implement these functions?

problem in LL SPI example code

I have been testing Examples_LL code (SPI_TwoBoards_FullDuplex_DMA_Master_Init ) in STM32Cube_FW_G4_V1.4.0 package.Here is my problem:I modified the original code such that I only need one board./* Enable the SPI1 peripheral */ Activate_SPI();   ...

USB CDC fails on F745 when communicating through USB hub.

The USB communication fails when connecting F745 MCU to a USB hub that is connected to a PC. Without the hub it is working normally without any errors. Currently the setup consist of a desktop app that sends something to the MCU and expects a respons...