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FBL · 2024-10-29

While the STLINK-V3 is compliant with USB 2.0 and exhibits reliable USB performance across various platforms since several years, the USB communication may fail between an STLINK-V3 and some recent computers. 1. Root cause The root cause comes from...

FBL · 2024-10-23

Introduction The article provides a comprehensive guide on selecting suitable endpoints for USB applications using STM32 microcontrollers. This involves understanding the types of data transfers required by the application and determining suitable en...

FBL · 2024-10-10

Introduction There are different ways to supply the USB transceivers on STM32H7 products, depending on VDD33USB and VDD50USB availability. 1. VDD33USB pin configuration According to STM32H7 datasheets, when USB is not used, the VDD33USB pin should...

FBL · 2024-09-08

Introduction Dead battery configuration control (DBCCx) pins play a crucial role in USB Type-C® applications to manage scenarios where the device's main power source is unavailable (dead battery). These pins, used with configuration channel (CC) pin...

FBL · 2024-08-29

Summary This article presents a step-by-step tutorial on how to develop a USB device with dual CDC ACM in the STM32F7 microcontroller using the classic USB library. The tutorial is based on NUCLEO-F767 and can be easily tailored to any other STM32. ...

FBL · 2024-11-26

Hi @williams-one In dual bank mode, the flash memory is divided into two banks, each with its own base address. For 2MB flash, Bank 1 is from 0x0800 0000 to 0x080F FFFF and Bank 2 is from 0x0810 0000 to 0x081F FFFF. For 4MB flash, Bank 1 is from 0x0...

FBL · 2024-11-26

Hi @AGond.2 You can check datasheet to find out the block diagram of the chip and figure out PHYs embedded in the MCU. STM32F72x for example embeds ULPI PHY for high-speed operations.

FBL · 2024-11-26

Hi @Alexander_Aisin PENA bit does not trigger an interrupt to the application. Did you follow the procedure to initialize the host as it is? I suggest you carefully read the reference manual!

FBL · 2024-11-25

Hi @Babaluis Can you check the clock selected for USB? Which board revision do you have? MB1549-U5A5JQ-C02?

FBL · 2024-11-25

Hi @GioBytem Flashing firmware that is not compatible with the MCU on the board can work with the similar internal flash and cortex M but can lead to various issues, including the inability to reprogram the device. So, you must be careful while chec...

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FAQ: Possible communication failure between STLINK-V3 and some recent computers

How to select suitable endpoints for your STM32 USB application

FAQ: Configuring the VDD50USB and VDD33USB pins on STM32H7 when not using USB

FAQ: Using dead battery pins in an STM32 with an integrated UCPD

How to implement a dual CDC ACM USB device using the ST classic library

Re: Dual bank flash organization on STM32U5

Re: How to Configure Micro Controller as USB Host and Device with Single WorkSpace

Re: Vbus interrupt in USB model of STM32F723

Re: Ux_Device_CDC_ACM Application - UART

Re: ST-link stop working after configuring ST32H7 as USB Device