STM32 MCUs Products

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Forum Posts

Can complementary timer pins be used as inputs?

Hello, I'm designing a PCB with an interface to an existing STM32769 board. I would like to use one of the STM32 timer inputs to trigger a timer. When the timer reaches its "compare" value it should trigger a DMA request for an SPI transaction. Accor...

AKuch.0 by Associate
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  • 1 replies
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STM32F745 - Simple LED ON not working with -O2 compiler flag

Hi,I am starting to program STM32 devices and I have an STM32F745 chip. Since I want to learn all the details I'm programming it from scratch, using only the definitions from CMSIS.I have a very simple program where I have 2 LEDs on PB6 and PB7 respe...

CGalv by Associate III
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  • 4 replies
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code for blink an led with systick timer

i made this code to blink an led with systick time but it does not work can you please correct this. i am using stm32l152rc discovery board. #include "stm32l1xx.h"while {  if (SysTick->CTRL |= SysTick_CTRL_COUNTFLAG == 0)   {   GPIOB->BSRRH |= GPIO_...

AKhan.17 by Associate II
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  • 5 replies
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Unable to use CMSIS library in Atollic TrueStudio

Posted on May 01, 2018 at 16:12 I am trying to use CFFT function for my STM32 microcontroller in Atollic TrueStudio. But I am unable to use any of the DSP functions. I get the error - undefined reference to `arm_cfft_f32' and undefined refe...

USB charging with data transfer

I want to charge the Android phone along with USB data transfer. I am using STM32F072C8T6 as micro-controller and NCP1855 for mobile charging.The problem is this, in some mobile phones the charging is happening but the USB is not getting detected(And...

ayedu by Associate
  • 532 Views
  • 1 replies
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How to load an user defined external loader in ST-Link

I have created an external loader for S29GL032 NOR FLASH using STM32F051 as target.The code in "loader_SRC" is rewritten from M29W128GL_STM3210E-EVAL project for TrueStudio using GPIO direct insted of FSMC.The problem is that I can't see the loader ...

pese by Associate
  • 540 Views
  • 1 replies
  • 0 kudos