STM32 MCUs products

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New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...

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DS18B20 Match Rom command fail

Hi. I'm using STM32F030C8T6 MCU to communicate with multiple DS18B20. I'm using Timers to make 1us delay. I set my prescaler to 48-1. and I'm running on 48MHz clock. when i connect two sensors to my MCU, i can't read temperature, so for testing i dis...

MNoro.2 by Associate II
  • 495 Views
  • 2 replies
  • 0 kudos

typo/unclear in stm32f411's datasheet

Hi community,after searching quite a long time for a bug on my board I found it. It was due to an unclear phrasing of the stm32f411's datasheet in table8/p39: for the QFP64 package pin 13 is not only vref but also VDDA.It would be much clearer to wri...

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ak by Associate
  • 526 Views
  • 3 replies
  • 1 kudos

Resolved! stm32c011 in-application option byte programming

Good morning,I'm trying to program the user option bytes of the STM32C011 using the HAL. The objective of the test is to toggle the BOR bit.  static HAL_StatusTypeDef testOptionBytes() { FLASH_OBProgramInitTypeDef obInit = {0}; FLASH_OBProgra...

AndreasS by Associate
  • 518 Views
  • 1 replies
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Vrefint and Vts very noisy with SAI active on G4

We are using an STM32G491 with TDM audio output active on SAI. When activating the 4 MHz bit-clock on SAI1_SCK_A, Vref and temperature measurement become very noisy, while externally connected ADC inputs are not affected.See attached graph for differ...

STM32H743ZI adc + bdma no callbacks

Hello every body, It is my first post and I´m newvy with this tecnology. I'm trying to read from adc 1, 2 and 3 values from the DMA (in case of use adc 1 and 2) and the BDMA (case adc3). In the two first cases, the interrupts are generated correctly ...

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STM32F105 64 pin bootloader

Hello I have been asked how difficult it will be to create a custom bootloader for the STM32F105.We are for some reason using the 64 pin version of the chip and from the AN2606 i can see """""Workaround• For 64-pin packagesNone. The bootloader cannot...

sklindt by Associate II
  • 1657 Views
  • 11 replies
  • 3 kudos

STM32H725VGH6 / Direct SMPS Supply / VLXSMPS Connection

Hi,We are using the STM32H725VGH6 MCU and are plannign to use the internal SMPS for VCORE.With regards to the connections required for the VLXSMPS pin, I would just like to confirm that a 220pF capacitor is required on this pin in the "Direct SMPS Su...

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SammExa by Associate
  • 1142 Views
  • 4 replies
  • 2 kudos

stm32G474re adc performance

ADC analog bandwidth tests:--board nucleo-G474re, on-board voltage reference.--sampling rate 2.8 msps, free-run mode, 12-bits, --156 kHz & 19.47 MHz.  Approximately at 19 MHz ADC has ENOB < 6 bits, limiting factor seems to be aperture jitter about 12...

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MasterT by Lead
  • 1881 Views
  • 7 replies
  • 2 kudos
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