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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DMA overwrites rest of memory [solved]

Posted on July 06, 2014 at 16:46Hello,I am working on STM32L151ZC. I use DMA to continuously read 28 ADC channelsIt seems that the DMA is periodicaly (les often than the ''normal operation period'') overwriting memory that it shouldn't access direct...

atsju2 by Associate II
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RTC_SetDate + RTC_SetTime race condition?

Posted on July 07, 2014 at 17:44Can the standard peripheral library functions RTC_SetDate and RTC_SetTime be used sequentially without worrying about a date rollover between the two calls?  Reading the STM32L reference manual gives the impression th...

mreuter by Associate
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USB communication between MCU and PC

Posted on July 07, 2014 at 17:19HeyI need some help for my project (I'm using STM32f4 discover board). I would like to exchange data from mcu to pc and pc to mcu. Data will be an array with some informations. I tried USB CDC (works fine) but the thr...

configuring watchdog for freertos

Posted on July 07, 2014 at 14:52how to configure watchdog timer for the freertos in stm32l152cb MCU, the freertos has 3 tasks running. when to update the WWDG counter, in the st example wwdg counter is updated in a while loop every 50ms . but how to...

Bootloader using USART 2 on STM32L152VB

Posted on July 03, 2014 at 17:56I am attempting to communicate to the bootloader through RS232 on USART 2 on the STM32L152VB.  I have Boot 0 pulled up and I believe I am in the bootloader because the application code is clearly not running.  I am us...

STM32F4 Discovery SPI problem

Posted on July 07, 2014 at 12:48Hi, I've successfully implement SPI communication between STM32F4 Discovery (as master) and PIC18F2580 (as slave). Everything works fine, clock signal is sent from STM32F4, MOSI and MISO data are correct. However, whe...

flukeco by Associate II
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Flash Latency and PWM Mode Bug

Posted on June 25, 2014 at 10:20Hi everybody, I recently tried to port my STM32F4Disco poject to the new CubeMX firmware 1.2. The first issue I encountered was that the program did not pass the SystemClock_Config function. While debugging and compar...

STM32F407 PWM issues

Posted on July 04, 2014 at 17:29 Hi all, I'm trying to use a PWM on a Olimex STM32-H407 board to drive the green LED (only user LED on the board), but without any success. I managed to use timers for generating output signal to turn on/of...

marko2 by Associate II
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synchronous mode of usart

Posted on June 28, 2014 at 11:52hello I want to use synchronous mode Usart. but i dont know how to set clock pin to for example 10 MHZ. please help me. thanks #stm32 #synchronous #usart

Usb port detection problem for STM32F407

Posted on July 07, 2014 at 08:25Hi every one,presently i am working on STM32F407 USB, in my project i am configured STM as a host and MSC class as a device, but when i am connecting the pen drive (MSC class device), all interrupts are raised except ...

chandu1 by Associate II
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