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...


stm32f407 Discovery RTC

Posted on September 06, 2012 at 07:55i try to show the time in Hiper terminal using problem  is moreover this link- /public/STe2ecommunities/mcu/Lists/STM32Discovery/Flat.aspx?RootFolder=

vinothraj by Associate II
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STM32_USB-Host-Device_Lib - host bulk transfer

Posted on January 17, 2014 at 15:30I looked into MSC host example, but I thing BOT is not ordinary bulk transfer?I'm still thinking about RNDIS - the data transfer.Is that also wrapped-command-status transfer or just plain data exchange via bulk-EPs...

STM32F4 external oscillator

Posted on January 28, 2014 at 13:16Hello,I have connected external clock source of 25 MHz from local oscillator to theOSC_IN pin of STM32F4. The problem is, that sometimes happens, that CPU does not start from external HSE and bit RCC_CR_HSERDY is n...

STM32F3 USB as Virtual Comm port

Posted on January 28, 2014 at 18:41I'm working on an STM32F373C8.  I've been working a lot with the usb as a virtual comm port and I haven't had any problems.  However, I'm currently working on an application where I only have the microcontroller se...

mattfox by Associate II
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STM32F4 RTC wakeup event - counter not starting

Posted on January 28, 2014 at 13:47 the counter receives the write value, but it doesnt start when i enable the wake up event. The WUTF bit should be set when the counter reaches 0, but this never happens. void init_RTC(void) { /* Enable the...

jf659 by Associate II
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stm32f4 discovery wrong core clock

Posted on January 27, 2014 at 19:37I'm new on stm32 development and I could be wrong. I try to test the real core clock of my Stm32f4 discovery, using a modified example of IO_Ttoggle project of  STM32F4-Discovery_FW_V1.1.0, using startup_stm32f4xx...

fabio23 by Associate
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STM32f3 embedded comparators

Posted on January 16, 2014 at 16:09Firstable, sorry for so many new topics, but as i dig deeper and deeper into programming stm32 boards, i find a lot new questions. I wasn't able to find a topic which relates to my problem, so i just created a new,...

arganasss by Associate II
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sqrtf() from math.h problem

Posted on January 27, 2014 at 18:00 Hi everyboy, I have a problem (Unresolved inclusion: <math.h>) with using sqrtf() on STM32 board from OLIMEX. I’m using the free tool chain provided by OLIMEX - Eclipse Helios - OpenOCD - YAGART...

Nand Flash, FSMC and ECC

Posted on July 05, 2012 at 12:03I'm using and external Samsung NAND Flash chip with an STM32F2 processor.  I have succeeded in writing a driver that can read, write, and erase the chip, but I'm a little confused about how to make use of the FSMC_ECC...

[STM32f4discovery]Some clarification about PWM

Posted on April 11, 2013 at 23:07hello,reading around the forum i comed up with the following code. my question are in the code comments, if someone can point me in the right direction i'll be glad.This code will be used to move 4 ESC, so the genera...

bifrost by Associate II
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