About XR.1

XR.1 · 2025-01-06

Hi,While working with RTC smooth calibration on a STM32G070 part, I noticed two strange things:1st strange thing: When RTC_OUT pin is only driven with the battery backup (no main power) I got 512.18 Hz; however, when the main power is restablished, t...

XR.1 · 2024-11-18

SysTick_Handler() function isn't called in a project based upon the STM32G070CB mcu (48 terminals). However, with the STM32G070RB (64 terminals (NUCLEO-G070RB)) there aren't any issues. I found this workaround from 3 years ago (almost 4):https://comm...

XR.1 · 2024-10-24

Hi!I'm looking for a uC that:It is Cortex-M0 or M0+,It isn't a Low Power device (L series) (no need to include Shottky diodes, and my app will be power hungry)It has internal EEPROM,32 <= LQFP <= 64,It has 20+ free pins,and the most important thing: ...

XR.1 · 2024-09-23

I've created a new project and the IDE has stuck in the "Please Wait For Clean Up" state for more than an hour, and I cannot cancel it! Should I wait for another hour or should I kill the process and then lose all my work in the workspace?

XR.1 · 2024-09-12

Hi, I need to use the MCP79410 rtc (or alikes: DS1307, PCF8583, etc) but the STM32CubeIDE I2C seems that can't handle the read/write protocol for these devices. For example, as the below image shows, one needs to send the control byte (writing) follo...

XR.1 · 2025-01-07

Hi! In this MCU pin 1 is RTC_OUT1. Originally I didn't consider the RTC_OUT pin, so that there's not connection over it; however, I'm getting it through a wire. It must not affect the output frequency because it's supposed that the crystal circuitry ...

XR.1 · 2025-01-06

Hi!Parenthesis do not match:

XR.1 · 2024-12-31

If you aren't using the RTC battery backed-up registers, then you can write some kind of code into them whenever you set the time/calendar. Then, in every reboot, you can check them and act accordingly.

XR.1 · 2024-12-31

"Well, no.But the reasons would go beyond the scope of the thread./Peter"We are all ears! You're free to write a white paper explaining such a weird decision. In a battery backed-up systems you NEVER expect that the RTC resets whenever it restarts fr...

XR.1 · 2024-12-24

Anyone at ST that has just a little interest in helping its customers?

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User Activity

RTC_OUT pin on G070 gives different frequencies when I attached it a multimeter (or 10K resistor)

SysTick_Handler not called, STM32G070 (and 2024 release)

Help me selecting the best microcontroller for my app

CubeIDE cleaning up has taken one hour, should I wait for another?

Struggling with I2C and the MCP79410 real time clock protocol

Re: RTC_OUT pin on G070 gives different frequencies when I attached it a multimeter (or 10K resistor)

Re: How to calibrate the STM32's real-time clock (RTC)

Re: RTC Calendar resets in CubeMX generated Init function

Re: RTC Calendar resets in CubeMX generated Init function

Re: STM32G030 - FLASH - Fail to use FLASH_Program_Fast