STM32 MCUs Embedded software

Ask questions and find answers on STM32Cube packages, including HAL, LL and middleware, and expansion software.

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How to add Touch on USB Host

I have HID keyboard running on HS and trying to add a touch screen on FSbut when it enumerates the touch screen has a pif->bInterfaceSubClass = 0 , causing a fail in USBH_FindInterface pif->bInterfaceSubClass is automatically populated by the Touch ...

USB cdc enum Ok but no works

hello, i starting a project in STM32F103C8T6 bluepill.it's my first project on STM32.configure my hight resonator, usb + cdc + debug, like all the video on youtube.but for my not works.my hardware is correct R10=1.5KO, enumeration was good. COM29.but...

kick by Associate II
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  • 7 replies
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Resolved! USB Host: How to power VBUS?

I'd like to implement a USB host on my STM32F7x3 so that I can connect a USB mouse to it. I'm somewhat confused about VBUS, though.This is the respective diagram in the AN4879 USB Hardware Guide:According to the description, the box "Current limiter ...

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Bug in USB implementation in STM32CubeH7

Hello.I have found a bug in USB implementation in STM32CubeH7 (1.4.0 - 1.6.0). Steps to reproduce:1) Open the project from STM32H743I-EVAL\Applications\USB_Device\MSC_Standalone\MDK-ARM directory2) Apply HEAP fix from https://github.com/STMicroelectr...

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EngyCZ by Associate III
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About FatFs Return FR_NOT_ENABLED

I use stm32F746 & FreeRTOS & SDMMC & DMA.​When I use f_open in somewhere it will return FR_NOT_ENABLED...​But in my system have the other f_open & f_write is normal work(I am not remount).​My English is not very good,if anything can't understand pl...

wu ryan by Associate II
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  • 6 replies
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HAL_UART_Receive_IT - Receives Unknown Bytes

Hello:Problems with the USART1 receive call on this device. Or is it me? I hope not.I have a serial decode option on my scope. I can see what I send out, and what comes back, every byte. This is my call to receive:rxChar[50];HAL_UART_Receive_IT(&huar...

STM32CUBEIDE USB MSC PROBLEM WITH STM32F103C8

I am try to do the project with this controller as a usb mass storage device for a small application. what steps i will do for that, but i already tried the tutorial given by the st.com. but its discussed for f4 series but need f103 series. please he...