Ask questions and find answers on STM32Cube packages, including HAL, LL and middleware, and expansion software.
Posted on August 15, 2016 at 19:37Hello. I try connect USB modem to STM32F207. I'm used AT^U2DIAG=0 command for switch modem to CDC mode. But in debug i see interfeise with bInterfaceClass = 0xFF only on modem. What is the interface? How get CDC?PC ...
Posted on September 06, 2013 at 09:20Hello. I am trying to use usb host in stm32f105. Done everything according to reference manual, usb libs, application notes, etc. The host works,but not always. To be more exact: not with all usb-devices. Keyboar...
Posted on October 18, 2016 at 23:43I'm working on USB on an STM32L4 chip and cannot seem to reliably trigger when a USB Device is both Connected and Disconnected. I trigger the interrupt overall and handle it, but I need changes to happen as soon as...
Posted on October 12, 2016 at 19:56I'm working on a USB CDC project to get a virtual com port using an STM32L476VG processor, I have it configured to be a device only in hopes to simply pass information over the com port between my board and PC. I a...
Posted on October 18, 2016 at 14:40We use the internal bootloader of the controller to do the initial firmware programming via USB (DFU). In the last time the we run into trouble with some units - the devices don't properly enumerate on USB (unknown...
Posted on October 17, 2016 at 12:37 Hi, I wrote a custom bootloader which downloads new firmware using GSM module and starts application firmware. Bootloader is able to start application firmware and application firmware is able to configure vecto...
Posted on January 28, 2014 at 15:02Hello, USB Virtual Com Port example doesn't work on device modeI have a uC card wtih stm32f107 which works host and FS mode, reads Flash disc.. Now I am trying eval vcp example, I made necessary changes but it doe...
Posted on October 17, 2016 at 20:20 Hello Guys, I have got a problem with the configuration of the ethernet PHY which I use. The problem occurs when i connect my PC and my custom board(which uses a STM32F107VCT). Under network settings I...
Posted on October 15, 2016 at 00:45I have STM32L476G-DISCO that came pre-loaded with some demo firmware including a Mass Storage device that works when you plug it into a computer like a flash drive. How does one go about a reading in a file from ...
Posted on October 09, 2016 at 12:35Hello! Using an own board with a F103 and a TAS5715 Class-D amplifier on it I'm trying to implement an USB-Speaker. Learning from various AN I modified the speaker example from STM USB FS Device Stack V3.3.0 by ch...
