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

ADC Bug

Posted on May 20, 2013 at 12:17Hi guys, i use am stm32f0 microcontroller.I've a problem about the ADC channel 13 (PC3 pin) and PA3 pin.when i connect something to PA3 pin seems that the ADC PC3 pin reads the PA3 pin value.this is my ADC configuratio...

pietro2 by Associate II
  • 680 Views
  • 2 replies
  • 0 kudos

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
  • 904 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
  • 1723 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
  • 1044 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
  • 645 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
  • 916 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
  • 1139 Views
  • 6 replies
  • 0 kudos

newlib/libc/usleep linker problem

Posted on May 24, 2013 at 13:24I'm sure this is something trivial, but being relatively new to MCU development I'm stumped.I'm trying to compile the toggle_GPIO example for the STM32F4G-EVAL board, modified to include a usleep(1000); line to slow it...

dsheludko by Associate II
  • 1360 Views
  • 4 replies
  • 0 kudos