STM32 MCUs Products

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Need Disk i/o.c for mmc flash for FATFS

Hi all,I am using the MTFC8GAMALNA-AAT 8GB flash memory via SDMMC1, operating in MMC 4-bit wide bus mode, along with FATFS (M7). I now require the diskio.c file. Kindly provide it, or if you have any related example code, please share that as well. P...

STM32F407 decoupling capacitor 100nf or 10nf

The power supply scheme indicates to use 100nf for vref and vdd, but in the General PCB design guildines section (Figure 51 and 52) indicates that 10nf power decoupling capacitor should be placed. I am confused which capacitor is suggested for adc de...

DNI by Visitor
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  • 1 replies
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JTAG STM32H757XIH6

should the pullups on JTAG should be given for JTAG in STM32H757XIH6, also are there any extra consideration taken care while using ARM JTAG. If pullup is not necessary, why is it so.

STM32L496 Sleep & Wakeup

Split from:https://community.st.com/t5/stm32-mcus-products/is-is-possible-to-wakeup-the-stm32l496-with-an-external/td-p/741267as this is a new question.Hello @STTwo-32 as the wake up pin associated with stm32L496 is SYSWKUP2 can i use this and on cli...

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STM32H757 SWO Debug Error

I get the following error when trying to debug an STM32H757 with SWO enabled. Failed to enable SWV configuration.Failed to execute MI command:-data-write-memory 0x5c003010 x 4 0x77etc...It would seem the debugger (ST-link v2) is not able to read the ...

CWadd_0-1730695812762.png
CWadd by Associate
  • 681 Views
  • 3 replies
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STM32G030 RTC LSE clock instability

I tried to use internal RTC with LSE clocking in device which has GSM/GPRS module (GSM part decoupled from MCU part by ferrite beads in power lines and resistors in data lines). In first PCB revision (no separate ground region under crystal) I notice...

NiTr0man_0-1754295334425.png
NiTr0man by Associate II
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  • 16 replies
  • 1 kudos

Resolved! STM32N657 - eMMC issue

Hello,Our board has an STM32N657 MCU connected to an IS21S08GA eMMC.We use an 8-bit bus, and SDMMC1 is configured to run at 32 MHz.In polling mode, read/write operations work, but are very slow — it takes about 1–2 ms to read or write a single block ...

Resolved! ST-Link not properly resetting STM32

Hi,I am trying to solve a strange programming related problem I am now having after updating the reset circuit of my STM32F439-based board. Below is a comparison between my old and my new circuit:The reason I made these changes is because this is a l...

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