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STM32F3: timer synchronization ARR change

Posted on January 24, 2014 at 17:38Hi,I'm using TIM1 and TIM8 of STM32F3 to generate PWM signals. I'm using both of the timers in combined PWM mode so that I can get high frequency/high resolution center aligned 4CH PWM. Moreover I'm synchronizing t...

kpavlata9 by Associate II
  • 1718 Views
  • 5 replies
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STM Studio: variables sample rate

Posted on September 06, 2011 at 22:10Dear,What is the sample rate of variables in STM Studio ? In one of the application notes I found 5msec, but I'm not sure if it is correct. 5msec is too slow. Is that possible to increase/decrease the rate in the...

elil by Associate III
  • 543 Views
  • 1 replies
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ADC1 and internal temperature sensor ?

Posted on January 28, 2014 at 08:13Guys, Am I right on initializing ADC ? It's running only one time and then freeze, I put it on forever loop, but stopping, never looping again, any wrong configuration here ? thanks       //read internal temperatur...

stm32f407 Discovery RTC

Posted on September 06, 2012 at 07:55i try to show the time in Hiper terminal using uart.my problem  is moreover this link- /public/STe2ecommunities/mcu/Lists/STM32Discovery/Flat.aspx?RootFolder=https://my.st.com/public/STe2ecommunities/mcu/Lists/ST...

vinothraj by Associate II
  • 7489 Views
  • 20 replies
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STM32_USB-Host-Device_Lib - host bulk transfer

Posted on January 17, 2014 at 15:30I looked into MSC host example, but I thing BOT is not ordinary bulk transfer?I'm still thinking about RNDIS - the data transfer.Is that also wrapped-command-status transfer or just plain data exchange via bulk-EPs...

STM32F4 external oscillator

Posted on January 28, 2014 at 13:16Hello,I have connected external clock source of 25 MHz from local oscillator to theOSC_IN pin of STM32F4. The problem is, that sometimes happens, that CPU does not start from external HSE and bit RCC_CR_HSERDY is n...

STM32F4 RTC wakeup event - counter not starting

Posted on January 28, 2014 at 13:47 the counter receives the write value, but it doesnt start when i enable the wake up event. The WUTF bit should be set when the counter reaches 0, but this never happens. void init_RTC(void) { /* Enable the...

jf659 by Associate II
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  • 2 replies
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stm32f4 discovery wrong core clock

Posted on January 27, 2014 at 19:37I'm new on stm32 development and I could be wrong. I try to test the real core clock of my Stm32f4 discovery, using a modified example of IO_Ttoggle project of  STM32F4-Discovery_FW_V1.1.0, using startup_stm32f4xx...

fabio23 by Associate
  • 935 Views
  • 3 replies
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STM32f3 embedded comparators

Posted on January 16, 2014 at 16:09Firstable, sorry for so many new topics, but as i dig deeper and deeper into programming stm32 boards, i find a lot new questions. I wasn't able to find a topic which relates to my problem, so i just created a new,...

arganasss by Associate II
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  • 16 replies
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sqrtf() from math.h problem

Posted on January 27, 2014 at 18:00 Hi everyboy, I have a problem (Unresolved inclusion: <math.h>) with using sqrtf() on STM32 board from OLIMEX. I’m using the free tool chain provided by OLIMEX - Eclipse Helios - OpenOCD - YAGART...