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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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STM32L4 HAL RTC Clear Alarm flags

Posted on November 30, 2016 at 16:21Hi,The latest release of RTC HAL library (1.6.0) for STM32L4 does not clear the RTC  ALARM interrupt flag.The following code from the function''void HAL_RTC_AlarmIRQHandler(RTC_HandleTypeDef* hrtc)''    /* Clear t...

NUCLEO-F042K6 UART ONLY RECEIVE 1 BYTE

Posted on October 29, 2017 at 12:25Dear CommunityI have a problem with the UART1/2 on the NUCLEO-F042K6 board. I try to read some bytes in polling mode usingHAL_UART_Receive();And i set the size parameter to any number greater than 1 and i only rece...

Storing user data in Flash memory

Posted on October 29, 2017 at 14:39Hello,I use STM32F401RE Nucleo board and Keil MDK5 IDE. In my application I need to store user data in flash memory.The sectors implementation in STM32f401 is as following:Sector 0 0x0800 0000 - 0x0800 3FFF 16 Kbyt...

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MA SH by Associate
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CAN doesn't receive in loopback

Posted on September 19, 2017 at 10:34 Hi all, I have connected CAN driver TAJ1050 to my STM32F469I-Discovery kit on extension port CN12 (pin 9 and 10). I can transmit message which is correctly received in another device (I can see this messag...

Read output state of Timer

Posted on October 28, 2017 at 18:54Hello engineers,could someone help me with one issue? Iam finding way to read output state of timer but unsuccessfull. I have one timer triggered by Comparator. This timer is configured as one pulse and is master f...

Dual port dma?

Posted on October 29, 2017 at 18:45Hey everyone,I'm confused by the an4031 application note on the DMA. It states that only one DMA stream can be active at a point but later on it goes on to say that :Dual AHB-to-APB port:The AHB-to-APB bridge is a ...

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con3 by Senior
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Proper backup domain access question

Posted on October 29, 2017 at 10:26Hi all,I've noticed that in every example and CubeMX generated code the backup domain access bit is set and never reset. It is as if once the application starts the access is allowed and never restricted again, so ...

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