STM32 MCUs products

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New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...

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Stm32f4 tim7 interrupt problem

Posted on July 26, 2013 at 16:48 Hi 2All! I'm trying to toggle LED with TIM7 interrupt. I'm using STM32f417VG with Coocox CoIDE Code is here: void TIM7Config( void ) { //RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM7,ENABLE); /*TIM7...

M_1 by Associate II
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Is my understanding of NVIC is correct?

Posted on July 31, 2013 at 22:17Hello, I don't know if my understanding of NVIC is correct especially to System Tick Timer. &sharpinclude ''stm32f10x.h'' void NVIC_Configuration(void)  {           uint32_t priorityGroup;                            ...

SDK support for STEVAL-IDS001Vx boards?

Posted on July 31, 2013 at 21:27I just started on a hardware dev project and want to use the STEVAL-IDS001V5 board in an embedded ARM9 with Linux. I downloaded the SDK linked from the board's product page but nothing in the SDK appears to support th...

eric by Associate
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STM32F4Discovery - DMA not work.

Posted on July 31, 2013 at 20:14I did try send 100 words 16bits from memory to memory by DMA, and it not work.uint16_t bufor_od[100];  uint16_t bufor_do[100]; RCC->AHB1ENR |= RCC_AHB1ENR_DMA1EN; DMA_InitTypeDef DMA_InitStructure; DMA_DeInit(DMA1_Str...

alprof by Associate II
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Squarewave out to PF.15

Posted on July 31, 2013 at 05:48Howdy,     Need to output a 25kHz squarewave.  Besides the obvious using a timer ISR, what other ways this can be accomplished? 1. Timer PWM?  As far as I know, no timer can output a PWM out to PF.15.  Am I wrong? 2. ...

bikejog by Associate II
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help me please about stm32f107 host

Posted on July 26, 2013 at 16:31i make a board with stm32f107 mcu i want to use usb host and read from flash disk. i compile example in st.com an program my chip but not work usb please help me

Timer rising edge

Posted on July 31, 2013 at 08:33Hi,I'm working with stm32f2. I need example code, to count time between two rising edge of GPIO. I read somewhere, that is possibile by appropriate timer's configuration without GPIO's interrupt. Can you help me?Thank...

mosine by Associate II
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USART and Hyperterminal

Posted on July 31, 2013 at 11:55 Hi, I create on my stm3220G evaluation board an example with USART. The code: #include < stm32f2xx.h > #include < misc.h > // I recommend you have a look at these in the ST firmware folder #include < st...

mosine by Associate II
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Timer related general questions

Posted on July 31, 2013 at 12:331. What is total delay produced by timer in STM32f205:delay =  (   (ARR+1) * (PSC+1) )  / Timer_freq               or delay =  (   (ARR) * (PSC+1) )  / Timer_freq                   ordelay =  (   (ARR) * (PSC) )  / Ti...

Drive low TIM output in not active state

Posted on July 16, 2013 at 14:24I have STM32F4-discovery board. And I use code from example to configure PWM output. Chapter 14.4.9 TIMx capture/compare enable register (TIMx_CCER) of RM0090:   Bit 0 CC1E: Capture/Compare 1 output enable.     CC1 ch...

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