STM32 MCUs Products

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Forum Posts

STM32F4 Timer Input capture problem

Posted on May 19, 2018 at 12:48Hello , I am using stm32f446re nucleo board . and i face some issue in timer input capture . here i am using 2 timers TIM6 ( for time base generation ) and TIM2 (free running input capture purpose)actually my code is w...

RN by Senior
  • 1739 Views
  • 10 replies
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STM32F722 - i2c data acquisition using timer interrupts

Hello,I'm having some trouble using the timer based interrupts.I have some very basic experience in mcu programing but I'm new to the STM32 platform and I had to adapt to it rather quickly. Therefore I lack some of the basic knowledge.My first questi...

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KMarci by Associate II
  • 476 Views
  • 0 replies
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Problem with form of SCK clock of SPI protocol !

I have been trying to perform SPI communication and observe outgoing and incoming data through MOSI & MISO. There is a weird problem in SCK weveform There are the codes I wrote :#include "stm32f10x.h" #include "stm32f10x_rcc.h" #include "stm32f10x_gp...

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KOzdi by Associate II
  • 726 Views
  • 2 replies
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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
  • 561 Views
  • 1 replies
  • 0 kudos

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
  • 708 Views
  • 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...