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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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...

UART baudrate problem

Posted on April 08, 2018 at 20:15Hello,I try to send data via UART with a baudrate 8Mb/s using Nucleo-L476RG and UM232H,the programs I use are STM32CubeMx and Putty (for RX)As shown on the picture below we can send data via USART1 with a baudrate be...

0690X0000060ATcQAM.png 0690X0000060ATgQAM.png 0690X0000060AUFQA2.png

STM32H7 Triple ADC Conversion Not Supported

Posted on March 16, 2018 at 02:22Hi All,Contrary to what the http://www.st.com/resource/en/application_note/dm00337702.pdf document says about the H7 chip, it does not support Triple ADC Conversion mode. It only supports double conversion mode betwe...

JacobV by Associate II
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Clk Configuration problem

Posted on April 10, 2018 at 12:43Hi, the problem is not solved, below is the clock configuration, Based on the figure above, I tried to use the different divisions /1, /8.. and the different clk (PPLCK, SYCLK, HSE...)  to obtain the correct frequenc...

0690X0000060AVrQAM.png 0690X0000060AVmQAM.png 0690X0000060AKuQAM.png 0690X0000060AVwQAM.png

[STM32L073RZT6] Read USB pins from GPRS modem

Posted on April 03, 2018 at 13:33Hello everybody,I would like to read the USB_DM and USB_DP pins from a GPRS module (it only works in Device mode) with the STM32L073RZT6 microcontroller which has also USB pins available. However, I realized that it ...

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