STM32 MCUs Products

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Resolved! L073: ADC & DMA, strange buffer "shift" in CIRCULAR mode

Heyho,strange things happening that I'd like to understand for a STM32L073 (Nucleo for now).Setup on a L073 @ 32MHz:- ADC is clocked by PCLK/4- ADC prescaler = 2 -> divide by 4 -> 2 MHz- 12 bit right aligned- ref V = VDDA = 3.3V- hardware oversamplin...

LCE by Principal II
  • 638 Views
  • 15 replies
  • 2 kudos

Resolved! STM32H750 XiP Clock change

Hey together, I have a question regarding changing the clock while running in XiP mode. Upfront everything works so far very well. On our STM32H750 we have a very simple bootloader. This bootloader configures the QSPI and the STM32H7 to run the appli...

ESawa1_0-1761134946554.png
ESawa.1 by Senior
  • 613 Views
  • 6 replies
  • 0 kudos

Resolved! Cannot enter DFU mode on STM32F446ZET6

Hi everyone, I’m working with a custom made STM32F446ZET6 board that otherwise functions perfectly (all peripherals, flash programming, etc. work fine). The only thing that doesn’t is the ROM bootloader. I can’t get USB DFU or UART boot to respond no...

UART idle transmission

Hi,I'm exploring using UART idle interrupt on RX to signal to my application that data has arrived.I currently push data into a tx queue then start transmission. I rely on uart tx ISRs to check if there is any more data to send, then load up a DMA tr...

law__ by Associate II
  • 778 Views
  • 10 replies
  • 8 kudos

STM32H5 DMA to GPIO

I am unable to control GPIO output pins with the H5 GPDMA.  I am able to control GPIO with the F103 using this project...https://github.com/mnemocron/STM32_PatternDriver...where the DMA is much simpler.  Section 3.7 of AN5593 (How to use the GPDMA fo...

h5_tim2_param.png h5_tim2_gpdma2.png
rmilne by Associate
  • 226 Views
  • 1 replies
  • 0 kudos