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

STM32 USB Library NAKs OUT packets from host

Posted on February 01, 2017 at 02:32I have the STMicro USB library configured as a full speed CDC device.  This is running on a STM32F405OG chip.  Everything works as expected but (very) occasionally it gets into a state where the device NAKs every ...

Resolved! How does the UART bootloader responds feedback?

Posted on February 20, 2017 at 16:46Hi,We are designing a project where we would like to use the default bootloader on a LIN connection.The MCU we plan on using is the STM32F030RC, with external LIN-driver.The LIN-driver merges Tx & Rx, so everythin...

USB Device DMA memory corruption

Posted on February 21, 2017 at 12:11Hi,I am using an STM32F7556NG microcontroller, connecting it to a host PC via USB, with the STM32 acting as a virtual COM port.I have enabled DMA, an I have noticed very strange behaviour. By supplying a address 0...

FreeRTOS STM32 tick

Posted on February 20, 2017 at 12:26Hi, I'm trying to use FreeRTOS with a STM32F401RE Nucleo64 board. I have all the project files in place and the project compiles fine. But I'm trying to use the HAL_Delay() routine from the Cube HAL but I'm runnin...

USART - reading 1 byte at a time

Posted on February 19, 2017 at 13:39Hi,I need to parse incoming data from UART, with unknown length.The packet length is sent within the packet, so I need to parse the packet as it arrives.So - I need to read 1 byte at a time, and parse the packet w...