STM32 MCUs Embedded software

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Alternative to MSC device (MTP)

Posted on March 26, 2018 at 07:30Hello there,I was able to implement an MSC class device basing on external qspi flash memory ( https://community.st.com/message/190720-re-qspi-fatfs-usb-mass-storage?commentID=190720 ).It works, but after some resear...

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Bug in HAL SD driver code

Posted on April 06, 2018 at 02:31 I spent the day chasing a bug that I had discovered a year ago, but forgot about. As detailed here: https://community.st.com/thread/39452-sdio-demo-code-doesnt-work-with-usd-ver-1 , there is a flaw in STM32...

usbh_userprocess never called

Posted on October 13, 2017 at 21:30USBH_UserProcess  (USBH_HandleTypeDef *phost, uint8_t id) function never calledI'm using Cube MX 4.22.1. STM32CubeF4 Firmware Package V1.16.0.Stm32F4Discovery board.Cube settings:Peripherals-USB_OTG_FS -> Host_Only...

Resolved! DMA doesn't copy data from UART RDR

Posted on March 27, 2018 at 12:55Hello,I have ported an exisiting code for a UART peripheral that uses DMA to copy the data from stm32F4 to an stm32L4When I send a character through the UART bus, and wait for the IDLE line detection interrupt to acc...