STM32 MCUs products

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configure gpio for external interrupt

Posted on November 14, 2014 at 14:53Hi I am using STM32F205 for my project (SN8000 EVK from  Murata).The SN8000 EVK uses Wiced SDK but it supports all the libraryfunctions, so the basic configurations will work(It uses vector tables in the vector_ta...

STM32F101RD: Interrupt preemption not working

Posted on October 03, 2014 at 16:52System info: 8MHz external clock, 24MHz interrupt system clock.Interrupt preemption is not working for me no matter the combination of priorities and priority groupings. My goal is to have a high speed timer interr...

jansen by Associate II
  • 18 replies
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STM32F427 Missed Interrupt

Posted on September 25, 2014 at 02:35 Greetings, I'm using an STM32F427VI MCU to generate a 1 Hz pulse (50% duty cycle) with its RTC controller. For the most part, it seems like it works just fine, however during testing, the code will oc...

UART4 IRQ Handler not firing

Posted on September 20, 2014 at 11:50With my STM32F4 discovery board I cannot get the UART4_IRQHandler to be triggered on incoming serial data. However the USART2_IRQHandler functions as expected and when the data is ready from the UART4 RX data reg...

andrew23 by Associate II
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External interrupt starting TIM2

Posted on September 10, 2014 at 16:33 Hello, For a datalogging appIication (STM32F401 Discovery), TIM2 is used as an interrupt for ADC sampling rate . /*---------------------------------------------------------------------------- C...

paul2 by Senior
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Clear pending interrupts

Posted on August 15, 2014 at 02:03 I know for a fact that this question has been asked before (I've seen it) but for the life of me I cannot find it, so I appologize. I am unable to get some of my EXTI interrupts to clear their pending st...

jwoolston by Associate II
  • 2 replies
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Posted on July 01, 2014 at 09:10Hi,i use the timer 10 to toggle a GPIO with a board init_timer  ( void ){TIM_TimeBaseInitTypeDef     TIM_TimeBaseStructure;NVIC_InitTypeDef            NVIC_InitStructure;RCC_APB2PeriphClockCmd (RCC...

gerson74 by Associate II
  • 4 replies
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measuring the pulse with Pingi

Posted on June 11, 2014 at 15:04 Hi, I am measuring the distance with ultrasonicsensor that has both one pin for the echo and trigger signal. For this task I'am using 2 timers: TIM2 AND TIM3 TIM2 is responsible for the periodic tri...

esovo1 by Associate II
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