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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Nucleo F042K6 and Standby mode

Posted on April 11, 2018 at 08:47Hi all,I am trying to put my nucleo F042 into standby mode. I have a very simple configuration (no GPIOs). The MCU enters Standby mode after doing all the inits. I measure the current on JP1 but it gives me something...

aa bb_2 by Associate II
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Resolved! CubeMx 4.22.1 bug?

Posted on September 16, 2017 at 03:06There might be a bug in CubeMx 4.22.1.Initialization of PLLM division factor for PLL is not included in automatically generated SystemClock_Config function, that might result in incorrect clock settings. Adding i...

ax0018 by Associate III
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STM32407G Discovery board demo code not working

Posted on April 11, 2018 at 06:47Hello everyone,I ordered a STM32407G Discovery board. I opened the box, followed the steps, connected the device with my PC(Windows 10). The board worked like a mouse - it moved a bit of slow and not accurate. But ba...

Pilot B by Associate II
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RTC SubSeconds gets in count down mode

Posted on April 10, 2018 at 14:50Following is GetTime function, It always give SubSeconds from 255 to 0 in count down mode. Values read in few ms interval. static void RTC_GetTime(void){ RTC_DateTypeDef sdatestructureget; RTC_TimeTypeDef stimestruct...

Where are option bytes defined?

Posted on April 07, 2018 at 06:20Is there a place within CubeMX to define the configuration fuses (Option Bytes)?What about in project settings in the IDE (I'm using TrueStudio)(things like SRAM2_PE, nBoot0, etc....)

GPIO state in bootloader

Posted on April 10, 2018 at 22:20Do the GPIOS keep their existing state when jumping from the user code into the built-in bootloader? Or do they revert to their power on states?   I'm sspecifically interested with respect yo the stm32f205 devices. I...

STM32F429 External power supply issue

Posted on July 04, 2016 at 16:43Hi all,I'm working with an STM32F429 disco board and I can't seem to get it to work with an external power supply (USB cable not plugged in). When connected via USB, everything is functioning as required. I have one o...

Modify of HAL library?

Posted on April 09, 2018 at 08:33HI,I use SPI of HAL Library in STM32F0.However, due to unaligned memory access, HardFault occurs in the HAL_SPI_TransmitReceive () function.So I modified the HAL library as follows.uint8_t data_lo, data_hi;uint16_t d...

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