STM32 MCUs Products

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circuit working when connect jtag ground or cro ground

hi,we are developing HMI using stm32f746 microcontroller it has 7 inch tft display,sd ram,norflash,usb,sdcard,ethernet and wifi.and we are devoloping a code for each sections one by one,till now tft display ethernet uart,wifi sections are completed,w...

KN.2 by Associate II
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Input Capture callback function inaccurate and slow?

Hi everyone, I'm using an STM32F0 Nucleo board. I've been trying to implement an input capture function that tries to measure the frequency of an input PWM signal. I basically record a timer count when I get the first rising edge and the second risin...

BKoll.1 by Associate II
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  • 7 replies
  • 1 kudos

Resolved! Mapping multiple streams, request, and channels in DMA

Hi,With H7 the mapping is simple, we can use multiple streams at the same time, one channel per stream.But with L4 , it seems to be more complex, especially usage of "channel" terminology:For L4, Is it that we can use multiple channels ? Thanks,ranra...

ranran by Senior II
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  • 4 replies
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how to use 4 channels of ADC(192 KHz signal) with DMA such that out of total decided buffer size of 4096, we can populate the first 1024 buffers with ADC channel 1 , second 1024 buffers with adc channel 2 and so on ?

I am building a radar back end wherein I have to process 4 ADC channels coming in from radar front end and want to do processing on each channel and want to store the adc values in the buffer so that I can do DSP on it.

NKarn.1 by Associate II
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  • 6 replies
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Resolved! Maximum speed of toggle of GPIO in STM32F0103 or STM32F746ZG

i am having STM32F0103 discovery board and STM32F746ZG Nucleo. i want to check maximum speed on which i can toggle GPIO. When i select 48 MHz in STM32F0 i am getting maximum 1.25 uSec which is around 800 KHz Max.in case of STM32F7 i am running at 216...

Yshar.1 by Associate II
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  • 8 replies
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Timing issues while storing data to flash

Hello,I tried to store data to flash on a STM32H742 (running at 480MHz) and I have some timing issues. Meanwhile I found myself a workaround that I also want to share here. Still I would like to ask some questions to better understand whats going on,...

STOPMODE on STM32F411 (Using a program called flowcode)

Hi,I guess this question has been asked over and over, i have tried my best to read what i can to understand sleep mode.However I am having difficulty as i am not using the HAL library that everyone refers to.I use a program called Flowcode, basicall...

CEagl.1 by Associate III
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  • 9 replies
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STM32F479NI Custom Board startup problems

Hi,We developed a custom board using the STM32F479NI MCU (using the Rev A).We are using a SEGGER J-Link JTAG adapter to flash and debug our MCUs.We are able to detect the MCU and to flash it using the J-Link softwares.But when trying to debug the MCU...

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AMass.1 by Associate II
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Bus Fault or Memory Management Fault

About fault exceptions, as I can understand user level trying to access privileged level memory will result in Memory Management Fault... but in Table 5.1 from Joseph Yiu's Guide to ARM Corten-M3 2nd edition page 83, it says Why that results in Bus f...

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KSun.11 by Associate II
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