STM32 MCUs Products

Ask questions, find answers, and share insights on STM32 products and their technical features.

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

How DO I switch from TIM4 CCP1 ISR to TIM4 CCP2 ISR

Posted on May 25, 2013 at 17:31Hello, I have a program where by after executing TIM4 CCP1 interrupt routine for a specified number of times, I disable TIM4 CCP1 Interrupt and enable  TIM4 CCP2 interrupt in TIM1 CCP4 Routine .TIM1 CCP4 ISR check for ...

difference btw system reset and poweron reset

Posted on May 25, 2013 at 12:42hi 1.)i have a little confusion, if controller can differentiate between system reset and power on reset itself?mean i want to skip few lines of code on system reset but not on power on reset2.) i have a stm32f4 discov...

bilal by Associate II
  • 789 Views
  • 3 replies
  • 0 kudos

TIM3 interrupt occasionally fires too early

Posted on May 20, 2013 at 19:28 I am using TIM3 as an event timer to trigger external ADC conversions. I am having an issue where the timer interrupt fires too early and causes an out of range conversion result from the ADC. I notice that when t...

richm by Associate II
  • 1540 Views
  • 9 replies
  • 0 kudos

STM32F407VET6 SPI1 doesn't work PB3,PB4,PB5 and PA15

Posted on May 25, 2013 at 00:54Hi.Please help. I write simple app using restricted KEIL to operate with AD5292 via SPI for my academic research project. To achive this I wrote the following code:int main(void){ /*!< At this stage the microcontroller...

sheinv by Associate II
  • 915 Views
  • 3 replies
  • 0 kudos

MCBSTM32F400 UART - How to use example programs / learn

Posted on May 24, 2013 at 17:08Background: I have a lot of experience with Atmel processors (Arduino) and some experience with M68332 processors.  Both have widely available examples and forums that help new user get started.  With a running example...

swhitney by Associate
  • 548 Views
  • 1 replies
  • 0 kudos

Don't understand behaviour of RTC_AlarmCmd()

Posted on May 09, 2013 at 22:05 I'm using the RTC on an STM32L151CB and at some point I'd like to disable both alarms and update alarm A. I'm using the following code which doesn't work: RTC_AlarmCmd(RTC_Alarm_A | RTC_Alarm_B, DISABLE); R...

mk299 by Associate III
  • 800 Views
  • 3 replies
  • 0 kudos

STM32 reset when wakeup by extern line from stop mode

Posted on May 23, 2013 at 18:16Hello, everybodynow I use stm32f103r8, I haved followed the reference manual and configured my mcu in to stop mode. And it has been in stopmode, but when i press button to wakeup the mcu, the mcu reset. I print value o...

jason_17 by Associate II
  • 976 Views
  • 6 replies
  • 0 kudos