STM32 MCUs Products

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STM32F103RCT6 HSE and LSE Crystal selection

Hi,I am designing a st board for the first time. First, we made all the improvements on the blue pill, which is STM32F103C8T6. When this wasn't enough, we switched to STM32F103RCT6.I am currently drawing a schematic of this card and was confused in ...

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Meyup by Associate II
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  • 4 replies
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Run code from ram improve the performances?

Hallo. In other mcu (not ARM) i’ve worked in the past, there were possibe to move some parts of time critical code to ram, and run them from there to get the best performance, since the flash mamory access were slower then the ram access. In STM32 mc...

Measure cable length

Hello, I would like to know if it is possible to measure the length of a really long and thin copper wire. The length ranges between 5 - 15 km. I think TDR (time domain reflectometry) would be the best method for it. My plan is to generate a pulse wi...

ppete.1 by Associate II
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  • 6 replies
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STM32H7 AT24CM02 EEPROM

Hello, I am trying to integrate an AT24CM02 into my project. Can anyone suggest any libraries compatible with HAL? your help is much appreciated. Thank you and best regards, Vouria

VYoun by Associate III
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About performance in stm32f103c8t6

Would be the part of the program code executed faster if its section was linked to be moved from flash to ram on startup? This code is executed many times.

EGeno.1 by Associate II
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  • 5 replies
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Resolved! STM32L552 - trying to set 3 GPIO Pins as inputs(w/ wo pull-downs) to be read before most initialization, but some pins on the board are always HIGH?

I'm trying to use 3 GPIO Pins as a 3-bit ID essentially. Depending on the values read, the uC will configure itself in an appropriate way (1 bin fits all tools essentially). The problem I'm having is that with the eval board the pins are pretty close...

Rikerq by Associate II
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  • 1 replies
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How to clear the DMA functions` redundancy words?

when I use the DMA functions as below:HAL_UART_Transmit_DMA(&huart1,(uint8_t *)aTxStartMessage,sizeof(aTxStartMessage));HAL_Delay(10000);In PC side,It always display such symbols at the hand of the aTxStartMessage after the first success reciever. Wh...

GShen.1 by Associate II
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  • 6 replies
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VSSA VDDA and analog / digital ground separation. What's best?

Hello,I have a mixed signal application in development, a home energy monitor, and following on from the recent PCB version's test results on the effects of noise, and after reading this article, I've decided to separate my digital and analog ground,...

d4 by Associate III
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  • 10 replies
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