STM32 MCUs Products

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Forum Posts

Hard Fault exception STMF4

Posted on February 23, 2013 at 13:50Hello ; I am getting Hard Fault exception  when excutting the function arm_cfft_radix4_f32(&S,testInput ); I set the FPU on  I tried to increase the heap and stack too but I could not solve it ; could you help ...

sami by Associate II
  • 2490 Views
  • 10 replies
  • 1 kudos

STM32F0 BOOT

Posted on March 14, 2013 at 16:09 Hi, I got the a problem regarding the BOOT process, I don't know how to move the nBOOT1 pin.  I have tried via software with the FLASH functions but with no good result.  Also I am working with the J-link no with...

giorgio2 by Associate II
  • 487 Views
  • 0 replies
  • 0 kudos

USB dual profile

Posted on March 13, 2013 at 22:23Hi, I have a project with a STM32F205 and I was wondering if I can have two USB profile loaded. I want to have the ''mass storage'' profile as well as the ''HID''. Is it possible? My second question is regarding the ...

jbaron by Associate
  • 644 Views
  • 1 replies
  • 0 kudos

EXTI signal capture speed limitation

Posted on January 18, 2013 at 15:12 Hi all, I am using a DiscoreryF4 board to develop a small application that counts pulses entering a specific pin. This is required to read the pulses from a field instrument that generates the pulses as...

hermanv by Associate II
  • 2988 Views
  • 10 replies
  • 0 kudos

USB FLASH STICK

Posted on March 14, 2013 at 10:50Hello In my new project I need to connect 2 or 3 USB sticks to stm32f4 ; later on i was able to do that with one stick only ; is that possible ? Could you suggest me a solution ? Regards

sami by Associate II
  • 553 Views
  • 1 replies
  • 0 kudos

Debouncing interrupts

Posted on March 10, 2013 at 23:38Hi, In our system, we are trying to debounce switches on GPIO lines. Every msec the switch is sampled using TIM3. After 16 ticks, if the input has settled, the idea is to set the interrupt pending register and trigge...

stenasc by Senior
  • 3494 Views
  • 14 replies
  • 0 kudos

Can't start application without debugger

Posted on March 13, 2013 at 09:05Hi everyone!I haven't found any useful information about my trouble, unfortunately. I am a newbie in STM32 MCUs. But I've used another ARM-based devices before.I've started with STM32F102R8. Using IAR and ST's periph...

stm32f10tvct uart5

Posted on March 08, 2013 at 10:46hi, I'm working with the stm3210c_eval and I would like to use the UART5 . this is the configuration void UART5_Init(void) {   GPIO_InitTypeDef GPIO_InitStructure;   USART_InitTypeDef USART_InitStructure;   /* Clock...

aymen by Associate II
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  • 5 replies
  • 0 kudos

STM32 USART Timing problem

Posted on March 11, 2013 at 13:07Hello; i have a small USART Test application.  It should send, controlled by an timer, constant ''A'' characters By receiving a character from the terminal Program of the PC an interupt is fired. The terminal program...