How can I detect the connection disconnecting the usb virtual - com port?
Hi. How can I understand that USB is connected or disconnected? There is no way to use Vbus. Microcontroller stm32h743.
Forum Posts
Freertos patch file error with segger system viewer
Hi,I want to use segger system viewer with STM32F4 discovery board. I installed required J-link files and added required segger system viewer files. I am using STMCube IDE with HAL. Here is the free rtos version configuration I have set.API:FreeRTOS ...
USB Manufacturer String
Hi I have developed a product based on STM32F411 for commercial use, but dont have USB VID. My question is, can I use below combination of VID - 0x0483, PID - 0xAB12 and my company name as Manfacturer string for my product which is going to market in...
httpd not working after IP changed at runtime (no rtos)
Hi,I'm trying to implement a webpage to change network parameters (IP, Gateway, netmask) on nucleo-F429ZIIf i change parameters before httpd_init() is called, all works ok: the board responds to the ping, and the httpd returns the webpages. But if I ...
How to develop my STM32 USB based application?
You would like to learn how to use USB Device and USB Host within STM32 based application? You want to follow step by step videos to build your own USB application?Here a set of STM32 USB trainings: https://www.youtube.com/watch?v=rI3yBmnfAZU&list=PL...
USB HID driver fails right at end of enumeration
Hi all,I'm trying to write my own bare-metal USB HID driver for a personal project, on an STM32F042 microcontroller. The hardware is a custom PCB, with a USB Type-C in a USB 2.0 setup.The project is a keyboard, but for now I've defined the device as ...
Resolved! AT command using stm32l496
I recently bought "P-L496G-CELL02" and I would like to communicate in AT command with the module:here is the message that appears:Welcome to STM32-Cellular to Cloud (STM32-C2C)AT commands terminal: connection to PC with USB-OTG FS is needed.Modem is ...
USB Sticks / Mass Storage devices of some make not detecting with STM32F407VET6 USB_FS configuration using only USB_OTG_FS_DP and USB_OTG_FS_DM pins.
we want to use USB mass storage devices like PEN drives in one of our project based on STM32F407VET6, in which we use only USB_OTG_FS_DP and USB_OTG_FS_DM pins for communication and generated VBUS by means of other IC's. we observing that some mass ...
Own USB OTG FS Mass storage Host for STM32H743IIT6 3.3V not coming
Hi, We are developing a custom board based on STM32H743IIT6 microcontroller. The application is USB mass storage acting as HostWe are using USB OTG_FS connection for the microcontroller. We are connecting the VDD33USB to 3.3V. And here is the USB co...
hid usb device function
I'm using 'STM32F103RCT' and been create a HID Custom keyboard.When the HID Keyboard disconnects from the computer, is there a function that occurs?