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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
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  • 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
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  • 3 replies
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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
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  • 1 replies
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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
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  • 1 replies
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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
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  • 3 replies
  • 0 kudos