STM32 MCUs Embedded software

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

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STM32f429 and MP3 Decoder spirit

Hello all ; I am using free MP3 decoder from spirti that supported by ST. but I noticed I cant use hardware floating point when I use this libraru . AM I wrong ? Can I use hardware floating point ? Regards

Trouble with STM32H7 bootloader

Hello,we have some trouble with STM32H742, trying to flash it via bootloader. It seems to accept only every second line of a hex file. We receive a hexfile with another microcontroller, build the bootloader commands and perform the bootloader communi...

STM32L496 Virtual COM "USB device not recognised"

I'm using an STM32L496 on a custom board and using USB CDC configured through CubeMX (STM32Cube FW_L4 V1.14.0). This connects to a Windows 10 laptop. Randomly I get "USB device not recognised". I can go days without the issue and then it suddenly ap...

Paul3 by Associate II
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Resolved! How to determine USB Data OUT end of packet

I'm busy with a USB to Ethernet implementation using the ST USB library and LwIP.When I send a packet to the host (Data IN) that came from the ethernet interface, I know where is the end of an ethernet frame send a zero length packet (ZLP) accordingl...

bluscape by Associate III
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When is HAL USB ready for me to send?

I have taken the STM32Cube_FW_F1_V1.8.0 example CDC_Standalone and adapted it to my purposes. The original example intends to forward bi-direction USB communication over a serial port. I have removed the serial port stuff and intend to simply send me...