STM32 MCUs Embedded software

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

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Resolved! STM32H7 USB Full Speed SOF interrupt. I used the CDC class as a template to implement a cusom vendor class. It seems to me that the Start of Frame interrupt never fires. How do I enable it?

I am attempting to send data in bulk, 64 bytes at a time for every SOF interrupt, however I don't see how to enable the interrupt.I attempted defining USE_HAL_PCD_REGISTER_CALLBACKS as 1, but that doesn't seem to trigger the SOF interrupt.

NBaro.1 by Associate II
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  • 1 replies
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I cannot use USB DFU bootloader

I am using STM32L082KZT6 and want to use bootloader with USB. I have read instruction and in my perspective I thought that just by connecting boot0 pint to high then usb bootloader mode would start. But it didn't. I putted the schematic picture belo...

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SShir.2 by Associate II
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  • 3 replies
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I have a lot of questions about USBX

How does the FIFO created in MX_USB_Device_Init() match the endpoint?In the USBX document of Azure, the descriptor is directly made into an array, while the sample program uses a lot of functions to implement it. What are the benefits of this? Not ea...

arilink by Associate III
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  • 1 replies
  • 0 kudos

Resolved! Why does FatFS work sometimes, and sometimes not?

Hi!I'm using FatFS R0.11 with STM32F373 and sometimes it works to use FATFS and sometimes not.These are the issues I got and I don't know why. Can it be something with NVIC interrupts that causing issues with the FatFS library?Mount SD card: Mount SD...

0693W00000D0tRxQAJ.png 0693W00000D0tFIQAZ.png
DMårt by Lead
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  • 2 replies
  • 0 kudos

STM32 custom Bootloader with external/seperate main app code and ISRs - two seperate programs as per examples but do not deal with ISRs

I am using STM32CubeIDE and have used the linker to change settings, so have a pretty good grasp.I have read on custom bootloaders but not found how they deal with the following issue, as it seems ignored in the demo code. The custom bootloaders show...