STM32 MCUs Products

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Forum Posts

32F413: Can I Remove Power from VDDA Pin During Shutdown?

I am chasing reason the for last 4 mA of current that my 32F413 microcontroller draws during low current shutdown. By "shutdown" I mean sleep mode where my system is powered from a small battery with short life.A really good engineer would have equi...

JOlso.12 by Associate III
  • 638 Views
  • 1 replies
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Bidirectional Line Termination - will just one resistor work?

I am designing a PCB for an ST micro MCU with external SDRAM.On the demo board, ST is using one series resistor termination for the bidirectional data lines. ST places this resistor at about 30/70% split of line length, where the resistor is 30 % of ...

MColl.3 by Associate II
  • 1750 Views
  • 2 replies
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STM32L431 ADC initialization problem

Hi. I have a problem with ADC on a custom board with STM32L431CBY with external 24 MHz clock. Everything (UART, SPI, DAC e.t.c.) works fine except ADC. Clock initialization:static void setSystemClock(void) { LL_FLASH_SetLatency(LL_FLASH_LATENCY_...

KGrib.1 by Associate
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  • 1 replies
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HAL_I2C_Master_Receive_DMA not returning updated values.

Hi,I am using one I2C based peripherals with Interrupt enabled.While using "HAL_I2C_Master_Transmit" and "HAL_I2C_Master_Receive", it seems to work properly with ISR.But, when I am using the following I2C_DMA:HAL_I2C_Master_Receive_DMA(&hi2c4, MPU_DE...

AKuma.33 by Associate II
  • 1517 Views
  • 4 replies
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STM32F107 Quadrature encoder

Hello,Regarding this post I am able to read my encoder value correctly. // STM32 TIM3 Encoder Decoder (PC.06:A PC.07:B) VLDiscovery - sourcer32@gmail.com #include ''stm32F10x.h'' #include ''STM32vldiscovery.h'' /**********************...

JJohn.3 by Associate II
  • 629 Views
  • 1 replies
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How to program an STM32H73x to put it in low power, that it consumes as little as possible, and that it can wake up with a GPIO?

I am using an STM32H735G-DK board to do my tests. My goal is to toggle a LED on PC2 every time I wake up the MPU when I put PG5 to ground. Once the LED is toggled, I want the MPU to go to the lowest possible power consumption. Does anyone have an exa...

BenBel by Associate II
  • 608 Views
  • 2 replies
  • 0 kudos