STM32 MCUs Products

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...

I am currently working with an STM32H747XIH6-DISCO and am stuck on how to get my DMA to trigger from an external clock source. I was going to set up a periodic DMA from a timer, but I'd like that timer driven by a 10-ish Mhz external clock. How could I?

DMB() in atomic_fetch_add leads to hard fault if MPU AXI is not cacheable

Hi there,I have got an STM32H7B0 processor.I would like to make a part of the AXI (main RAM of application) not cacheable so I don't need SCB_CleanDCache() before/after DMA write/read transaction.But another part of the AXI RAM should be cacheable an...

How to calculate minimum sampling time for ADC channels using RAIN, CAIN, RADC, CADC hardware value on STM32H7 MCUs ?

STM32F373 SDADC injected sequence using DMA drifts through the data buffer

I am having trouble using the DMA with SDADC. The samples are coming in ok but their sequence in the buffer drifts through it. Anyone can help? i.e. every channel is open to the air except for one input i have a voltage applied. This value you can cl...

How to receive UART data with checksum value in stm32l4r5zi MCU?

Is it possible to use UART with more than one buffer?

I have no idea why this code is not working. I am sending chunks of a file with UART followed by short instructions of 2 bytes to tell the MCU whether another chunk is coming or to start playing the file.The MCU receives the first chunk without an is...

Continously Receiving UART Data and Transferring to DMA without Generating Interrupts With Variable Length Data on the STM32L475RE

I am working on a portion of code that handles some UART messages that come in periodically from an LCD. The reception of a message over UART from this screen will generate a response based on the parsing of the message received.It is part of a large...