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...


OCREFCLR is not reset after update event

Posted on September 24, 2013 at 15:23I have a problem using the OCREFCLR input to TIM1 on a STM32F3. I have set up TIM1: upcounting, CH1 in TIM_OCMode_Combined_PWM2 and CH2 in TIM_OCMode_PWM1. I have set OC1CE (Output Compare 1 Clear Enable) and OC2...

stm32f051c8t6 NVIC and USART Problem

Posted on September 23, 2013 at 11:33Hi, I configured USART1 in stm32f051c8t6 but when i run the code on my h/w it goes hang. I dont  where it is hanging. whether because of  NVIC OR USART. But according to me it hang in NVIC because everything run ...

lernd by Associate II
  • 2 replies
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ADC self calibration STM32F205

Posted on September 24, 2013 at 11:40I had read that STM32Fx series has adc self calibration feature but I couldn't find any register/explanation in reference manual of STM32F205.Also is it possible to assign different sampling time in SMPRQ registe...

STM32F4 RMII ETH external clock source

Posted on September 23, 2013 at 16:03Hy all, I've a question about the RMII mode at STM32F4 mikrocontrollers. I checked the datasheet and the stm3240g-eval user guide. So the eval board user guide say that at page 19:''In RMII mode the 50 MHz clock...

totti001 by Associate II
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STM32L162 temperature sensor calibration

Posted on September 23, 2013 at 10:59Hello, At what temperature the calibration value TSENSE_CAL1 correspond ? In the datasheet it say 30�C but in the STM32L1_Discovery_Firmware_Pack_V1.0.3, it use 25�C (STM32L1_Discovery_Firmware_Pack_V1.0.3\Projec...

nicolas by Associate III
  • 1 replies
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stm32f4xx multiple

Posted on September 24, 2013 at 03:21I have a project that has a mix of cpp and c files. The symptom is that at certain times, the code gets stuck at the end of the startup_stm32f40xx.s at the ''B'' line.DCMI_IRQHandler                              ...

dibs by Associate II
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I2C Acknowledge problem

Posted on September 23, 2013 at 11:19 Hi, I am trying to establish I2C communication between STM32F4 and OV5642 Camera module( and I want to test it separately. I already worked with I2C a...

STM32439I-EVAL2 Demo software

Posted on September 16, 2013 at 15:30I've pruchased a STM32439I-EVAL2 (5,7'' TFT) module for evaluation, the manual  state demo software may be downloaded from but I've been unable to find it. Also, is there a stemWin version compa...

cw by Associate
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STemWin Library

Posted on September 23, 2013 at 16:07I need to download STemWin Library,can you help me?thanks

aymen by Associate II
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Problem with ADCs in dual regular mode

Posted on September 23, 2013 at 08:42I�ve have a problem with the ADCs in dual regular simultaneous mode. I want to measure 3 channels with ADC1 and 3 channels with ADC2. The conversions are started by software. I want to get 32 acquisitions in DMA ...