STM32 MCUs Products

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Resolved! H7x3: SDMMC2 - no DMA?

Heyho,I just changed a big PCB (1st revision working) with a H733 and added a micro SD cardholder and connected it to the SDMMC2 peripheral.Only to find out later that this #2 does NOT work with the extra IDMA controller.SDMMC1 is out of the question...

LCE by Principal II
  • 218 Views
  • 3 replies
  • 2 kudos

Issue when generating PWM on STM32F769

Hello Team,  I am using stm32f769 controller. I am using timer 1 channel 4 for pwm output, and my APB1 clock is 180MHZ here I am taking prescaler : 17999 and ARR=1999 and ccr=1000 for this values I can see output of pwm by generating 5hz pulses. But ...

Resolved! USBPD EPR Source

Hi, I'm trying to implement USBPD EPR Source with DisplayPort Alt Mode on a STM32G071. I use the latest https://github.com/STMicroelectronics/stm32-mw-usbpd-core, which seems to support EPR, but I couldn't find any complete examples with a working EP...

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xGloooM by Associate II
  • 354 Views
  • 3 replies
  • 0 kudos

Resolved! NUCLEO-G491RE Standby mode power consumption test

I have ordered NUCLEO-G491R to test STANDBY mode power consumption. The power consumption measurements are taken via the PPK2 from Nordic.https://www.nordicsemi.com/Products/Development-hardware/Power-Profiler-Kit-2The steps:1. Take STM32CubeMX examp...

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LPetr.1 by Senior II
  • 1204 Views
  • 19 replies
  • 5 kudos

Resolved! Why SPI transmit doesn't work from timer interrupt?

Hello everyone!That works:int main(void) { ... init_SPI1(); for(;;) SPI1_Send(); }And that doesn't:void TIM2_IRQHandler(void) { SPI1_Send(); TIM2->SR &= ~TIM_SR_UIF; // reset UIF bit in the status register of the timer }Why?Thank you ve...

NikolaiB by Associate III
  • 251 Views
  • 5 replies
  • 1 kudos

Unable to read sectors from sd card on STM32U575ZI

Hello I'm trying read sector numer 0 from SD card. I use 4-bit mode for sd card reading. My MCU is on Nucleo development board. Card is correctly initialized but when I'm trying read sector I get zeros in buffer and maybe 10 random not-zero bytes. Wh...

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kk9 by Associate II
  • 188 Views
  • 2 replies
  • 0 kudos