STM32 MCUs products

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STM32F407 nested interrupts

Posted on March 31, 2013 at 13:18Once again I feel really stupid. I can't get nested interrupts working.In the attached file there are three functions, NVIC_Configuration(), SysTick_Handler() and TIM6_DAC_IRQHandler().I intend the SysTick interrupt ...

Interrupt enabling/disabling

Posted on March 18, 2013 at 19:15Hello,please look at following interrupt routines for capture/compare and uart receivevoid TIM1_CC_IRQHandler(void){ uint32_t break_time, mab_time; TIM_ClearITPendingBit(TIM1, TIM_IT_CC1); break_time = TIM_GetCapture...

Unable to send data via UART Serial Link

Posted on February 07, 2013 at 05:12I am trying to send data to a PC COM port but cannot figure it outI configured GPIO, NVIC, and USART per specification and it all checks out. The strange thing is, when I connect the Tx pin and ground to oscillosc...

skillet by Associate II
  • 7 replies
  • 0 kudos

STM32F4 interrupt issue

Posted on January 02, 2013 at 15:29Hello experts, I'm using stm32f4 discovery board. I have connected an interrupt line from a RTC chip to PA1 of my board. The RTC chip gives interrupt signals each 1 second. The way I enable interrupts is as follows...

Problems with interrupts for STM32f051

Posted on November 26, 2012 at 15:32Hello all,I'am porting an stm32f103 application to an stm32f051 It is a bootloader which loads an application via RS485However I ran into problems with clearing the usart buffer. The uart interrupt is enabled for...

evert2 by Associate II
  • 3 replies
  • 0 kudos

Interrupt priority clarification

Posted on November 02, 2012 at 14:51Hello guys, I have been messing with interrupts recently and I have hard time to find in the manuals how the priorities actually work. I have seen the priority groups and priority values. If I understood it proper...

longchair by Associate III
  • 1 replies
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sysTick stops after a few TIM3 interrupts

Posted on October 19, 2012 at 16:47Hello, I am having problems with the syStick timer.  The handler for sysTick stops being called after one or two interrupts from TIM3 (set < 1Hz). The TIM3 interrupt has no problem (LED keeps toggling). I started ...

Interrupt handling scheme

Posted on September 24, 2012 at 19:07I've spent some time with the stm32 manual, but there is always very crucial details omitted.  I've been using a st10 and thinking of upgrading.  The ST10 handled interrupts in a peculiar way I think.  It had two...

drobison by Associate II
  • 3 replies
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the mcu stuck with external interrupt

Posted on August 30, 2012 at 13:02 Hello, sorry for my bad English. I'm developing an application for a STM32F103ZE that reads the value from three sensor via I2C bus, use the SysTick timer, use USART1 to communicate with the pc, generates four ...

mfcirill by Associate II
  • 6 replies
  • 0 kudos