STM32 MCUs Products

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Resolved! Vhys parameters for STM32F2xxx MCU I/O ports

What is the correct Vhys parameters for STM32F2xxx MCU I/O ports?It looks like as wrong datasheet values here (DS6329 Rev 18): https://www.st.com/resource/en/datasheet/stm32f207vg.pdf#page=102The published values are too big.Please double check the c...

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Vuha by Associate II
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How to properly start and reset timers?

I want to connect my MCU with a module which has a specific way of communication. Module sends messages of variable number of characters, where period between two characters is also variable. My idea is to use timer in order to overcome this problem....

NDjor.1 by Associate
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  • 1 replies
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STM32G474 Multi UART cant work with RingBuffer

I have fail using multi UART while using with the ring buffer,but using the HAL function testmulti uart is fine,i using the Keil c(MDK) complier check and i test if cnacel the HAL_UART_Init(&huart3) or other one is fine ,and i look for other of the s...

czack.1 by Associate
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STM32F091 RTC accuracy and measure error info.

Hi,​I would like to know about the STM32F091's RTC accuracy and frequency error information.Is the RTC accuracy or frequency error factor affected only by crystal?Is the RTC accuracy or frequency error factor affected by MCU itself?Is it any ST docum...

ElvisWei by Associate II
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  • 2 replies
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Resolved! STM32H7 ADC using timers

Hello, I am using Nucleo-H743ZI ,I am using timer1 to trigger ADC.My APB1 clock frequency is 240MHz and my ARR register is 240 of timer 1. So my sampling rate of ADC should be 1Msamples/sec. To check it I am toggling a pin whenever ADC conver...

GHARI.1 by Associate II
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using stm32f401rct6, two question, (1) system clock configured with a external 16Mhz crystal can work if it is set to 42Mhz but not at 84Mhz and (2) even if working will stuck at HAL_GetTick

(1) cannot run at 84Mhz, it will stuck at Error Handler RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_H...

JTse.1 by Associate II
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  • 10 replies
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STM32H745 - Dual core

I have few questions on STM32H745 dual core cortex M7 and cortex M4.i. What is the booting sequence when both the cores are enabled at the same time? Is there any application notes available in details.ii. How both the cores uses the same resource (R...

Monish by Associate
  • 898 Views
  • 3 replies
  • 1 kudos