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Forum Posts

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
  • 203 Views
  • 3 replies
  • 0 kudos

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
  • 113 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...

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drad1 by Associate II
  • 119 Views
  • 7 replies
  • 1 kudos

Application not starting correct after UART bootloader

Hi,I´ve a application (with RTOS) where I do a FW update via the internal UART bootloader (BOOT0 pin method).After flashing is finished I set the Boot0 to GND and toggle the reset pin. The application starts, but I don´t get USART interrupts any more...

AWack by Associate III
  • 162 Views
  • 2 replies
  • 0 kudos

Resolved! STM32G474 High speed ADC DAC

Dear Community, i got two interconnected questions, as i want to build a measurement system that measures and generates sine signals and multi-sine signals with frequencies of up to 1 MHz. For this task i would like to have 10MSPS DAC and ADC acquisi...

LTDC prevents CPU (of MCU) from going into sleep mode

LTDC prevents CPU (of my MCU) from going into sleep mode. When i deactivate the LTDC clock, the CPU goes to sleep mode. LTDC interrupt is enabled trough IOC, without enabling of LTDC interrupt, screen remains black. I use the following MCU: STM32L4P5...

FLuba.1 by Senior
  • 122 Views
  • 4 replies
  • 3 kudos

Use PA0_C as GPIO on STM32H730IBK6Q

Hi I am working on a project with STM32H730IBK6Q and STM32Cube IDE 1.16I am trying to use PA0_C as a GPIO, but the GPIO function is not connecting properly. PA0 is used an ADC, not as a GPIO, so from how I understand muxing there should be no conflic...

EPala.2 by Associate III
  • 111 Views
  • 7 replies
  • 0 kudos

STM32H743: QUADSPI internal timing criticality errata

Hi all,I am working on a QSPI driver for W25Q512 flash memory (extloader for stm32cubeprogrammer and main firmware driver). I had a look at the errata ES0392 - Rev 13 and I have a question about paragraph 2.8.4: 2.8.4 - QUADSPI internal timing critic...

lucky65 by Associate II
  • 94 Views
  • 1 replies
  • 1 kudos