STM32 MCUs Embedded software

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

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Forum Posts

USB double buffered endpoint question

Posted on July 14, 2016 at 14:56Hello, I have a CDC working with a double buffered endpoint. Everything seems fine, but I was wondering about the following situation. When I transfer a block of data, and the last piece is <64 bytes, shouldn't the t...

srdjan by Associate II
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STM32F0xx HAL_I2C Driver - Slave Functions

Posted on July 14, 2016 at 01:38Hello - I am looking for clarification on why each of the HAL_I2C_Slave_xxxx() transmit and receive functions take a Size parameter.  If I were going to call HAL_I2C_Slave_Recieve() (after being write-addressed by the...

mrussell by Associate
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EVAL_AUDIO Codec Configuration STM32F4 Discovery

Posted on July 13, 2016 at 18:56Hi, I am working with the STM32F4 discovery board and I'm trying to use the built in codec. I am trying to configure it to play audio from 2 alternating buffers I create. I have set up my callback function to start pl...

epalaima by Associate II
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USE_BUFF_WO_ALIGNMENT with FatFS in STM32CubeMX

Posted on July 12, 2016 at 04:44I's using STm32CubeMX to generate code for 429's OTG-FS. But I find there is a grayed option 'USE_BUFF_WO_ALIGNMENT', it's fixed to 'Enable', and on USB_OTG_FS configuration wizard, the 'Enable internal IP DMA' is fix...

trouble shooting USB MSC device firmware

Posted on March 26, 2016 at 16:57Hello,I could use some help. I have to implement a USB Mass Storage device on a STM32L476. The final hardware is not ready jet, so I started by using a stm32476RG Nucleo board. I�ve started with the MSC_Standalone ex...

torsten2 by Associate II
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audio ringing/crosstalk

Posted on June 07, 2016 at 16:54I posted on the eval forum but after further experiments trying here. I'm using the STM32F746G Discovery.  I'm using the audio_loopback.c demo slightly modified to use line inputs instead of mics.  I get lots of cross...

dennis by Associate II
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  • 2 replies
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Interruption problem with SPI cubemx

Posted on July 11, 2016 at 17:18 Hello, I have a reception problem with SPI interruption, I only triggers once the interruption and my array is filled with this one character who repeats.. Thank you for your help. main.c /* ...

ibrahim by Associate II
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STM32 Cube USB VCP

Posted on August 18, 2014 at 14:31Hello,I'm trying to get a virtual com port working on the stm32f4 discovery board. This is something that I've managed to do in the past using the old USB libraries and std peripheral libraries. However, since st is...

CMSIS in Discovery board example

Posted on July 11, 2016 at 14:48Hi, I'm using Discovery Board with USB_Device\MSC_Standalone\MDK-ARM project. I'm trying to read sd card written with my Android phone. The result is the image attached. What is the problem? Thanks #usb #sdcard #cm...

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