Chip selection for 2-port CDC host
I need a 2-port host that can bridge 2 CDC slaves. What is the best chip for doing this? I don't want to spend much time doing software development like writing CDC drivers.
STM32 MCUs Embedded software
Ask questions and find answers on STM32Cube packages, including HAL, LL and middleware, and expansion software.
Forum Posts
STM32L412 VDDUSB Disconnect
I am using STM32L412RB for a low power application.VDD: 1.8VI have a 3.3V regulator that I would like to only turn on when I am using USB. According to the datasheet (https://www.st.com/resource/en/datasheet/stm32l412kb.pdf pg 19), VDDUSB = 3.0 to 3....
How to compare bytes received in a uint8_t?
I have a STM32F103C8T card, I am developing an application that receives a byte array by usb / serial.I have a variable "uint8_t USBBuffer;" in "usbd_cdc_if.c" which stores the bytes.My question is: how can a non-vector variable receive an external m...
A barrier to "generate code" for a new project in CubeMX
Hey guys,I used ST CubeMX(v5.2.0) with TrueSTUDIO IDE in Windows 10 PC. My work is to generate a new project for STM32 F411E DISCO board and tweak and implement the examples given for STM32 F446RE board in the ST's FP-AUD-SMARTMIC1 software's projec...
How to properly change sysclk frequency in STM32L0
Hi,I'm trying to dynamically change sysclk frequency in STM32L011xx. It's quite easy for STM32L4. All steps are described in detail in RM for L4 (here is what I extracted from RM: https://pastebin.com/KcCZNGAr) - my implementation here: https://githu...
STM32H750 - USB CDC not working from System Bootloader - need to clear IABR ?
I'm using the STM32H750. Using the discovery kit I developed a system that always boots into the system bootloader. When I start the application code using a dfu-util, the application code starts a USB FS CDC device and I can communicate with it as v...
Hi, I am using fatfs on flash along with usb msc device on stm32 mcu ,it is working usb detected I am able to do file operations and check files from desktop when plugged in the usb.
what i noticed is if i create n no of files, only 8 files are displayed however the remaining files are also created but not displayed, i am using elm chans fatfs. What could be the problem why only first 8 files displayed on pc .Kindly let me know ...
AN4826 Errors
There are a couple of inconsistencies in AN4826.First one that has been repeated in other posts is that there is a bug in the bootloader and BOOT0 pin's state is actually irrelevant as it always boots from BOOT_ADD0 anyway.So the select BOOT_ADDx bas...
Issue using LwIP (netconn) with CMSIS-DSP on Nucleo F767
I'm trying to get my board set up to receive data via UDP, run an FFT and then return the data back to the requesting port, I receive and echo back data but as soon as I try to process it with the FFT function the system locks up waiting for a memory...
Resolved! Controller stalls at NVIC_EnableIRQ(CAN_TX_IRQn) after jump to application from a bootloader.
Hi,I am using a CAN bootloader to update my application. But after flashing the application and jumping from the bootloader to the reset vector of the app, the program stalls after calling NVIC_EnableIRQ(CAN_TX_IRQn). Is there a problem that the boot...
