STM32 MCUs Products

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Question with editing linker file (variable stored in flash)

Hello! I was trying to set aside a section in flash for a variable (I do have a reason to be doing so but, for the time being, I'm in the learning process to make sure I understand how it works before I do anything (too) stupid).Anyway, my chip was t...

JayDev by Senior II
  • 1907 Views
  • 3 replies
  • 0 kudos

Resolved! L412 documentation error.

I think I found a documentation error in the L412 datasheet. The Quadspi is documented to support two banks in the QUADSPI module description, but I can only find the pins for BK1, which I assume is the first bank. My guess is that the QUADSPI module...

STM32F407 Ref Manual Bus Matrix - Typo?

Histudying the DMA of the STM32F407 MCU, I came across Figure 1: System architecture.It says DMA_PI for GP_DMA1 but DMA_P2 for GP_DMA2.I reckon that DMA_PI is a simple typo and should be called DMA_P1 and stands for the DMA peripheral bus.Would you a...

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AAnth.1 by Senior
  • 854 Views
  • 3 replies
  • 1 kudos

Resolved! Hardfault randomly when I do sprintf

Hello everyone,I'm developing a firmware for an STM32F767 and I have a problem that happens randomly and I can't figure out why. From what I could analyze looking at the stack I think the problem comes when doing a sprintf and I have the hypothesis t...

Nickjmas by Associate III
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  • 10 replies
  • 2 kudos

HAL_UARTEx_ReceiveToIdle_IT fails to initialize

Hello There,I'm using STM32H7A3 and facing a weird issue with HAL_UARTEx_ReceiveToIdle_IT() API.STM is connected to Cellular Modem via UART. When I turn on the modem via some GPIOs, initially it throws some init data. But when I call HAL_UARTEx_Recei...

KAgga.1 by Associate III
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  • 3 replies
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In MCU STM32F103RETxLQFP64, UART program stop system

To,Sir or MadamI am making a embedded system with MCU STM32F103RETxLQFP64. In this MCU pin PC10 and PC11 is multipurpose pin. I use it for UART.In project, PC10 and PC11 is used as GPIOs. I change functionality of pin. I used pin PC10 for UART4_TX an...