Posted on July 03, 2013 at 01:44Hi all, i'm using STM32F407 with 12MHz ext. crystal with 168MHz system clock, i use demo for STM32F4Discovery, i configured Timer4 and Timer8 in same way, specifically: ARR=1, PSC=0, CKD=0, and i'm measuring 42MHz o...
Posted on July 03, 2013 at 10:29Which IRQ do I need to use ? I don't see any IRQ related to TIM9 at stm32f4xx_it.h.TIM8 can also do PWM input - which IRQ do I need to use there ?void TIM8_BRK_TIM12_IRQHandler(void); /* TIM8 Break and TIM12 */v...
Posted on July 03, 2013 at 06:21Hello, I'm on stm32f3.As far as I know, comparators on the device is very fast so it's very suitable to detect short circuit and over current condition in 50 ns. but most of shunt resistor has very LOW value. so it sh...
Posted on May 28, 2013 at 22:42 Take a look at the video below, which shows Linux, in its uClinuxform, running on the STM32F437 microcontoller: http://www.youtube.com/watch?v=_uO8KfhfY2Y&feature=youtu.be The novelty of this con...
Posted on July 02, 2013 at 20:57In a project I have a periodic interrupt (5ms) that misses a beat from time to time (1-2min).I have an os that will globally disable interrupts (set primask to 1) for very short time then re-enable them. I suspect it ...
Posted on February 24, 2013 at 02:29Hello everyone. As many may have noticed, the STM32F4 discovery boards comes with an unfitted OSC32 crystal (X3) & biasing caps (C16 & C27). Did anyone ever tried to provide her/his the board with those missing c...
Posted on July 02, 2013 at 10:46 Hi, I connected the ethernet port of the STM32F10C-Eval to my pc using an ethernet cable. But the led of the ethernet port is not blinking which means that the connection is not detected. I have changed the cable but...
Posted on July 01, 2013 at 15:36 Writing in 'C', I use __disable_irq(void) before reading a value that gets updated in an interrupt service routine. __disable_irq(); //prevent serial interrupts Count = TSp->DataAvailable; //get number...
Posted on June 03, 2013 at 23:11When willthesaleSTM32F333, of which are referred in http://www.arroweurope.com/nc/services/downloadcenter.html?tx_abdownloads_pi1%5baction%5d=getviewclickeddownload&tx_abdownloads_pi1%5buid%5d=868&tx_abdownloads_pi1...
Posted on July 02, 2013 at 09:18Hello,I'm working with stm3220G and I get lcd example and ok. I have my small project with tasks and when I try to write to lcd into task routine, the operation failed. The operation has successfully if into task rout...
