STM32 MCUs Products

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Resolved! STM32U5 RTC subseconds count up sometimes

Hello,I've noticed an issue when using the RTC to try to calculate subseconds. I am using the NUCLEO-U575ZI-Q board, with a new project with these settings:with this clock configuration: I've added this code to the while loop: /* Infinite loop */ ...

JFisher_0-1748911187007.png JFisher_1-1748911209123.png JFisher_2-1748911316050.png JFisher_3-1748911352897.png
JFisher by Associate II
  • 110 Views
  • 3 replies
  • 2 kudos

Resolved! STM32 F446RE Looses RTC Registers' Data When Power is Off

Hi all,I'm building a discharger using my STM F446RE, such that it's RTC registers are used to store data that'll be loaded to set parameters in my code every time the discharger is plugged into the power. Just to clarify - I'm NOT using the RTC as a...

nivg by Associate
  • 163 Views
  • 3 replies
  • 0 kudos

SPI+GPDMA Configuration

 Besides, I don't know whether this configuration of MX is correct. /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_GPDMA1_Init(); MX_SPI2_Init(); MX_ICACHE_Init(); MX_I2C1_Init(); MX_RTC_Init(); /* USER CODE BEGIN 2 */ ...

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OrionJ by Associate II
  • 150 Views
  • 1 replies
  • 0 kudos

What is the VBAT function?

If the PDR_ON connector is connected to the GND, the VBAT function may not be available.What is the VBAT function?To use RTC, a coin cell is connected to the VBAT connector. Is there a problem if the PDR_ON connector is connected to the GND?I am usin...

Kazuhiro by Associate II
  • 297 Views
  • 4 replies
  • 3 kudos

RTC Alarm Minutes and Seconds on STM32U575VI

Hi,I'm currently working on an application for a STM32U575VI6. It's supposed to generate an interruption every 4 minutes and 9 seconds. However, it works only when I mask the seconds, and only work with minutes. The moment I try configure both and en...

Resolved! [solved]STM32G RTC sets to some value afterr reset

Hello,I have an application which I would like to build on to of cubeMX generated HAL driver, but I came across strange issue that I am unable to keep RTC value on reset. Drivers part is as generated with cube using freeRTOS. system reset is triggere...

lauris by Associate III
  • 211 Views
  • 1 replies
  • 1 kudos