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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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Weird ADC temperature sensor results

Posted on July 31, 2013 at 09:26Hi,I am trying to use internal temperature sensor of STM32VLDiscovery board but I have a little problem. I get ADC conversion result and apply the formula in RM0008, temp = (V25-Vsense)/Avg_slope+25, to calculate temp...

Problem with USB lib

Posted on July 29, 2013 at 16:07Hi, I am testing the usb lib 4.0.0 for the VCP functionality on STM32L15xVB targets with 1.3.1 drvier on Win7 hosts. I tried two tests with both usart bridge and loop back examples and unfortunately seeing the same is...

cemer by Associate II
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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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