STM32 MCUs Products

Ask questions, find answers, and share insights on STM32 products and their technical features.

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

STM32L4 TIM+ADC+DMA overrun

Hello!I have a custom board with NAND flash connected. One of the DMA channels is used during write operations to move data from RAM to FMC buffer (mem-to-mem mode). The channel has low priority so theoretically it shouldn't interfere with other chan...

Alekseus by Associate III
  • 652 Views
  • 6 replies
  • 1 kudos

Resolved! Issue with STM32H747XIH6 Internal SMPS Bring-Up

Dear Sir,We are facing an issue while bringing up the STM32 microcontroller (part number: STM32H747XIH6) using the internal SMPS.When we power the MCU through the LDO path, everything works fine, and we are able to connect to the STM32 via JTAG. Howe...

Samudra by Associate II
  • 444 Views
  • 1 replies
  • 0 kudos

Resolved! DMA Transfer Error for GPIO on STM32G031

I am trying to periodically transfer data to the first byte of GPIOA (PA0-PA7) using DMA Channel 1 and TIMER1, but am hitting a transfer error immediately after enabling the DMA channel for transferring. * I can write to GPIOA->ODR using the CPU and ...

Array of PDM microphones best bus interface

Hello,I would like to design a microphone array with up to 16 microphones. I want to use the stm32h7a3zi board which has a lot of peripherals.I was looking at the DFSDM interface, but with only 8 channels / 8 filters up to 8 pdm microphones can be ha...

frnt by Senior
  • 1491 Views
  • 1 replies
  • 0 kudos

STM32H563 ADC Oddity

Hello,Im working on a program which sends data from the ADC to the computer. My problem is that the data from my STM32H563ZIT6 is bad. I first noticed this from looking at the data sent from the computer and confirmed this by outputting the ADC data ...

tw1_0-1744079456321.png tw1_2-1744079710265.png tw1_3-1744079851314.png
tw1 by Associate II
  • 475 Views
  • 3 replies
  • 0 kudos

Resolved! Questions on calculating DMA latency on STM32H7 chips

I found an application note which goes in depth on DMA transfer speeds and clocking for F7 chips, but haven't been able to find anything similar for H7 chips. I have a few questions:How are each of the DMA controllers clocked on an H7xx chip? My assu...

BenDDMC_0-1749497064185.png
BenDDMC by Associate
  • 506 Views
  • 2 replies
  • 0 kudos

Low Amplitude and DC Offset on the Crystal

Hello, We use STM32H755 with a 25MHz crystal oscillator connected to OSC32_IN and OSC32_OUT OSC_IN and OSC_OUT pins. Probed on the bench, I see a sine wave with a DC offset and low amplitude. Can you comment if the attached waveform looks okay? My ex...

SDS00012.png
drad1 by Associate II
  • 504 Views
  • 7 replies
  • 1 kudos