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Resolved! Strange CRC behaviour

I've got some trouble with the CRC unit in an STM32L475.At first, I got wrong CRC results, but then it dawned on me that the compiled code didn't force only 8 bits at a time into CRC->DR. So I added what I've used elsewhere, to force the compiler to ...

EThom.3 by Senior II
  • 181 Views
  • 2 replies
  • 1 kudos

Resolved! microcontroller suggestions for a new STM32 project ?

I’m choosing a microcontroller for a new STM32 design and I’d appreciate some recommendations.I don’t have particular requirements for compute performance, memory size, or ultra‑low power — just solid peripheral support and a Nucleo board available f...

How to handle high-volume FDCAN data without DMA?

Split from How to make the FDCAN with DMA - which is solved.TL;DR: STM32s don't support DMA for CAN or FDCAN.Hi, thanks for the clarity.But, the doubt I'm having was, then how to handle that much data rate like eg.5mbps in FDCAN without any help of D...

G473 ADC crosstalk

Hello. Have some issues with MCU ADC configuration and data.Hardware:                                                                                                                                                                                     ...

grisom13 by Associate III
  • 223 Views
  • 2 replies
  • 0 kudos

RTC time drift issue

Hello, I have come across an issue with the RTC in my project. In my project I am using the following:- MCU:- STM32H743IIT6IDE version:- 1.19.0SDK version:- 1.12.1 I will discuss the issue here, I wrote a program that uses the RTC and print the curre...

STM32U5 + HAL_FLASH_Program() + DCACHE?

Hi,I am currently developing a small application with a STM32U5 where I write a few bytes into flash using HAL_FLASH_Program(). All seems to work fine. Except I can only read the data back after I do a reset. I suspect that DCACHE is playing a trick ...

JE by Associate III
  • 777 Views
  • 6 replies
  • 0 kudos

DCMI priority versus SDMMC (STM32N6)

Good day folks,I have the DCMI camera interface on a STM32N6 streaming to the SDCard, and I am noticing that there are cases that the DCMI reports an Overrun when a SD access occurs at the same time that the Hsync interrupt was meant to occur.Digging...

cam-sdaccess.png
exarian by Associate III
  • 303 Views
  • 4 replies
  • 3 kudos

Resolved! STM32N655 BKPSRAM

Hello,In my project, I want to hold boot params in BKPSRAM so "Application project" can also write and read this section easily. If boot is needed, "Application project" will set boot params as required and after that it will use "NVIC_System_Reset"....

B.Kaya by Associate III
  • 953 Views
  • 5 replies
  • 0 kudos

Resolved! STM32H573V UCPD CC2 and PC9 interference

HI,I am working on a board using STM32H573V and have a working solution with UCPD detecting an inserted memory stick and running the MSC class. In an other part of the software I am using PC9 as an GPIO push-pull, low speed output and as soon as I se...

DirkH by Associate II
  • 627 Views
  • 4 replies
  • 4 kudos