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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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STemWin and external RAM

Posted on April 02, 2015 at 14:37I have linked STemWin library. My project uses external RAM. When I display some progressbar using internal RAM, value of progress is displayed correctlly (ex. 50%). When I am switching buffer ''aMemory'' to extrerna...

michal23 by Associate
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[Bug] I2C I2C_WaitOnRXNEFlagUntilTimeout

Posted on August 20, 2017 at 20:18The L4 1.8.1 drivers contains a tedious race condition inside the 'I2C_WaitOnRXNEFlagUntilTimeout' function. There is a chance that RXNE reads 0 (RESET), which causes the while {} to execute. Potentially RXNE and ST...

How to reset DMA buffer for UART

Posted on January 19, 2017 at 04:06 Hi Everyone, Just a little issue, I would like to reset the receiving buffer of the DMA in circular mode every time it completes reception. If i know the exact size of received data problem solved the DMA bu...

Raider E by Associate III
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  • 6 replies
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stm32f429 rtc alarm problem

Posted on October 25, 2016 at 10:37Hi, I am trying to use cubemx hal library for 1 second rtc interrupt. The call back function is called every time the ''minutes'' has changed. So it does not work for every 1 second. My rtc init and call back funct...

er3481 by Senior
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X-NUCLEO-NFC03A1 problem with L152RET

Posted on August 20, 2017 at 11:14Hi, I'm working on a project where I have to work with NFC protocol on my STM32L152RET.I want to port to this board the nfc exemple coming with http://www.st.com/content/st_com/en/products/embedded-software/st25-nfc...

RTC ALARM + PA0 Wakeup from standby, problem

Posted on August 16, 2017 at 18:45I have a problem with STM32F415RG....My project has two system of wakeup from standby, first is PA0 pin and other RTC Alarm.If i put a single way of wakeup, like only PA0 wakeup work, if i put only RTC ALARM wakeup ...

Marco1 by Associate II
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