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Resolved! Data coherency with DMA and I2S audio on STM32H7

Moving from a audio effect prototype based on the STM32F407 to the STM32H757. Did a lot of stuff on the F4 with audio but on the H7 I'm getting stuck and can't get a simple audio loopback with DMA. I'm using Cirrus Logic's CS5343 and CS4344 as extern...

Alefal by Associate II
  • 6426 Views
  • 18 replies
  • 1 kudos

How to use LPTIM_TimeOut for a simple one-shot delay ?

I'm trying to realize some simple timings/delays in my application using the LPTIM, and although most of it is working, I don't understand it 100%.So the LPTIM is set up to run on the LSE clock (32768 Hz) (with a prescaler of 16, so the LPTIM is runn...

Strooom by Senior
  • 5894 Views
  • 3 replies
  • 0 kudos

What MCUs have backup SRAM maintained by VBAT?

STM32F407VG has 4kB of backup SRAM that's preserved when VDD is removed if VBAT is present. A few other MCUs in the STM32F40x line have that feature too.Do any MCUs outside of the STM32F40x line have SRAM that's preserved with VBAT? Is there a way ...

Resolved! Specific format for an SFI image, specifically how to decrypt it.

We;re looking at using SFI as part of the manufacturing for a product based on STM32U5. One of the concerns we have is that STM32TrustedPackageCreator only supports a bare (not big-iron HSM) protected. One of the simplest ways for us to accomplish ...

msj by Associate II
  • 922 Views
  • 1 replies
  • 0 kudos

erase_init.Page = 11; bricks STM32G030

I have been attempting to write to flash on an stm32G030 and manually changed the erase_init.Page = address & ~(FLASH_PAGE_SIZE - 1); to erase_init.Page = 11; and this bricked the device and is no longer able to be connected to an STlink is there any...

PGood.1 by Associate II
  • 731 Views
  • 1 replies
  • 0 kudos

Resolved! STM32H503RB I3C private communication

Hi all.   I tried to communicate(private) with my I3C slave device using STM32H503RB board. To communicate with my device, I need to specify register address to write/read data. i.e. Frame = (Start with Slave ID w/ W=0) + (register address w/ W=0) + ...

GLee.16 by Associate
  • 1838 Views
  • 3 replies
  • 0 kudos

CAN communication setup with stm32f407vet6

I have stm32f407vet6 board as well as another end for CAN is made using stm32f103c8t6, So can you help me setup CAN communication between these. where in stm32f103c8t6 will have usb end which will be connected to laptop.

SRath.4 by Associate II
  • 2419 Views
  • 7 replies
  • 0 kudos