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INTERRUPTS on STM32 F4 discovery

Posted on February 18, 2014 at 04:34Hello Everyone, I need help to implement 2 different interrupts in order to : detect the falling edge of the signal (1)detect the rising edge of the clock (R3) 120kHzAny help will be very appreciated. Thanks ...


Help a Hardware guy with NVIC

Posted on February 06, 2014 at 19:13I am trying to understand the NVIC on a SMT32F407. I have found that we are missing USB interrupts randomly. Since I cant solder a pullup to fix the problem I am stuck. I can understand the documentation enough to...

VE7HR by Associate II
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STM32F415RGT6 UART4 RXNE Interrupt ?!

Posted on May 22, 2012 at 15:25Hello, I try to work with the UART4 RXNE interrupt but something went wrong.     // USART2-TX, UART4-TX     GPIO_StructInit(&GPIO_InitStructure);     GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;     GPIO_InitStructure...

dennis23 by Associate II
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TIM5 interrupt goes to default handler

Posted on February 05, 2014 at 23:54 I have just implementet a Low Speed Internal (LSI) oscillator calibration using a timer connected to the High Speed External (HSI) crystal. Right after I enabled the timer interrupt (and probably interrupt fi...

Waiting for Data with Interrupt

Posted on February 04, 2014 at 22:53 Gents (and maybe Ladies), My goal is to wait until a certain amount of data has been received. I have setup an interrupt (Can Bus) and when it is triggered it stuffs the message into an Array. I'm usin...

Just Matt by Associate III
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STM32F4Discovery - Setting up EXTI on external button

Posted on January 27, 2014 at 17:31I've got the example working using the on board button and now I want to use an external button on CPIOC - 11. I've used this button with GPIO_ReadInputDataBit with PuPd_UP. I've converted over the sample code but ...

jim by Associate II
  • 2 replies
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TIM1 ISR not triggering - STM32f4xx

Posted on September 17, 2013 at 00:15I am trying to use the ISR for TIM1, but it does not want to trigger. I run the following code in debug mode on my IDE, but the TIM1 ISR code never gets executed.I believe that the problem may have something to d...

dibs by Associate II
  • 7 replies
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STM32L152 RTC periodic wakeup

Posted on November 05, 2013 at 14:42Hi all,I'm quite new with STM32 and I'm trying to set up the RTC module to raise a periodic wake-up interrupt every second (using LSI).The configuration seems to be working, the interrupt is effectively raised, bu...