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Forum Posts

Disable tracing on STM32H743

Hi Is it possible to disable the ETM on STM32H743?I know It possible to disable the tracing via trace pins or reading the trace data at low speeds using Jtag, but is it possible to disable the CPU from recording instructions into the ETM?Is that what...

deckhard by Associate III
  • 661 Views
  • 2 replies
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UART timeout in DMA Circular mode.

Hi, I have a question about UART + DMA.I have a sensor that needs to send data to my STM32. When the sensor is stimulated, for the duration of the event, it sends a byte approximately every 1 ms.To receive the data there are no problems, I used DMA a...

STM32H755 Rev. V RDP Error when erasing flash sectors

Hi there, Our application has a firmware update method that begins by erasing flash bank 2 sector by sector before writing the new firmware.RDP level is set to 0, but this shouldn't be an issue as we're only erasing a sector.Occasionally (Maybe 1 in ...

MJack.1 by Associate III
  • 4150 Views
  • 7 replies
  • 2 kudos

Weird LPUART interrupt behaviour

Hi,i write code in bare metal so every time i initialize a project in STM32CubeIDE i do it as an empty project. I made a project for STM32L011K4 and try to initialize the LPUART, in the startup file i can find that the handler for the LPUART1 name i...

XKeto.1 by Associate
  • 901 Views
  • 3 replies
  • 1 kudos

Resolved! WWDG - max timeout so short?

I'd like to use one of the watchdogs on STM32F407, but I'm surprised the maximum timeout of the WWDG is so short (around 50millisecs, depending on clock speed).This is very restrictive, for example a sector erase takes much longer than this (and is a...

s_ by Associate III
  • 1367 Views
  • 6 replies
  • 0 kudos