STM32 MCUs Embedded software

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STM32 I2S Audio Frequency Question

Hey guys, I just need some clarification on the I2S Fs real quick, on the STM32F4DISCOV1 board. The formula in the reference manual says, Fs = I2SxClk/((16*2)(2*I2SxDiv + ODD)) or Fs = I2SxClk/((32*2)(2*I2SxDiv + ODD)) for 16 and 32 bit respectively ...

CFran.1 by Associate II
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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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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 II
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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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