STM32 MCUs Embedded software

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

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USB HS Failure to ACK Bulk OUT packet

Posted on March 09, 2016 at 15:55 Hi All, I'm working on a STM32F429-based USB HighSpeed peripheral which exchanges MIDI data with a host computer.If you're not familiar with MIDI, don't worry about it - just know that in the land of USB ...

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cnicolls by Associate
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usb enumeration errors, new project from cubemx

Posted on July 22, 2015 at 19:03Hi, i have an discovery STM32F407 board, using cubemx (4.9.0), opened new project for the STM32F407 discovery board. enabled USB_OTG_FS ''Device Only'' mode without SOF and without VBUS. Selected the CDC class, the cl...

netanelu by Associate III
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STM32F4 : Usb flash drive and fatfs

Posted on March 03, 2016 at 10:49Hello, My 4GB usb flash drive works perfectly fine with FATFS and STM32Cube. However, my program is not able to make a read/write operation on the other usb keys. Actually, f_mount function returns ''FR_OK'' and I c...

USB audio has more than two interfaces

Posted on March 02, 2016 at 23:34STM examples of USB audio are all has two interfaces(one is for control). If the number of interface is bigger than 2, is there any change in usbd_audio_setup function. How to deal with this situation?  #usb

fangdu by Associate II
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STM32L0 SPI + DMA + interrupts = Problem

Posted on February 28, 2016 at 16:16Hallo, I have a problem with SPI and DMA in interrupt mode. on my stm32l053. When I start SPI transmition, SCK and NSS pins looks ok, but there is nothing at MOSI line. I checked DR register but it is 0 during who...

fiske23 by Associate II
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STM32L476 Discovery + HAL Library + FatFs

Posted on March 02, 2016 at 10:35Hello ! I would like to add some memory to the STM32L476 Discovery board.For that, I am trying to connect a microSD through SPI using FatFs.I found : http://stm32f4-discovery.com/2014/07/library-21-read-sd-card-fatfs...

celine by Associate
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STMF2 USB BULK IN/OUT Incomplete

Posted on February 26, 2016 at 23:29Hi,I'm working on getting a WinUsb working.  I have the device enumerating successfully.  However, when I try to send data on BULK OUT to the device or read data from BULK IN in both cases I see 'incomplete' on my...

STM32CubeFx HAL library and Errata

Posted on February 26, 2016 at 10:52Hi CubeMX team,how do you solve microcontroler errata in HAL libraries ? It is possible to activate and deactivate the recommended workaround for different revision of microcontroller ? Petr #hal-library-erra...