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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USB and WFI

Posted on December 06, 2011 at 08:46Hello,I finally get the USB stack to work on my custom hardware.Last thing I need to fix is that once everything is started I rely only upon interrupts (as the USB stack), so my main method looks like :int main(vo...

root by Associate II
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SDIO Issue setting power register. ( F207 )

Posted on October 26, 2011 at 16:11Hi again guys, I have previously had some issues with the SDIO that have been fixed. Recently I moved my SDIO test application into my large application and have been having a strange issue writing to the power reg...

stbbrad3 by Associate II
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stm32f103re EXTI interrupt response time

Posted on December 01, 2011 at 06:29First of all sorry for English and messy explanation. One of EXTI channels configured as interrupt on falling edge. EXTI ISR  toggles GPIO(set/reset) pin and resets EXTI pending bit. I measured time between these ...

trisf by Associate II
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Using STM32 USB-FS-Device library with uCOS

Posted on December 01, 2011 at 14:32OK so I got the USB library with custom HID example (from ST) and uCOSII in IAR v6 compiling/linking/downloading, however the USB does not enumerate properly. I assume that I have got the setup/architecture wrong...

ADC: How to read 6 signals?

Posted on November 25, 2011 at 13:16Hi. This is the first time I write in this forum. I must read 6 analog signals, 3 from an acelerometer and 3 from a gyroscope, every 20 ms. I am using PC1-PC3 and PA1-PA3 (STM32 Discovery VL), so this is my config...

RTC calibration when LSI is the RTC clock

Posted on November 23, 2011 at 02:17Hi All, On one of my projects I'm using external watch crystal (32768Hz) as LSE clock to the RTC and all works well. What I now need to do is have the RTC continue to work when the external watch crystal fails. My...

trevor23 by Associate III
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What's wrong in PWM (Led)?

Posted on December 03, 2011 at 10:50I want to create fading Led with pwm, but my code doesn't works. If I simply set bit 1 to pin my led is lights.Please help me.I'm use stm32f103vet6.int main(void){ GPIO_InitTypeDef GPIO_InitStructure;  TIM_TimeBa...

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