I'm rewriting some of my old LL code to use HAL and having trouble getting the RTC to read time correctly. I have a simple test project where I'm calling HAL_RTC_GetTime() and HAL_RTC_GetDate() before and after a call to HAL_Delay() with the expectat...
Hello STM Comunity, I am making this post because I have reviewed many reference schematics for the use of the STM32F103C8T6, and in most of them, I see that they use 20pF load capacitors for the LSE circuit.The datasheet literally states that the va...
Hi,I want to use External 32.768KHz Oscillator as clock source for RTC. This is a reference schematic how I intend to connect Oscillator with RCC_OSC32_IN pin on my STM32H743 microcontroller. My Query is since oscillator requires Vcc 3.3V to operate...
MCU: STM32G070CBT6According to ES0468 - Rev 5 (STM32G070CB/KB/RB device errata), for issue 2.2.10, the only workaround can be applied is erasing the RTC domain by software during power up. But this workaround would clear RTC time/date data. Normally,...
Hi, i'm trying to set up the RTC timer to be able to use the alarm and HAL_RTC_Init always return HAL_TIMEOUT. It seem like RTC_ICSR_INITF never go to 1. uint8_t init_RTC() { /* USER CODE BEGIN RTC_Init 0 */ /* USER CODE END RTC_Init 0 */ ...
Hello,I am trying to use the SLEEP and STANDBY modes with the RTC. I want the device to go to sleep/standby mode for 10 seconds and wake up after the 10 seconds are done. I have tried it with an interrupt using UART and Button and both the modes are ...
Hello guys! I have a problem. I need to use HAL_RTCEx_SetSynchroShift function from HAL to modify the subseconds of the RTC module. The problem is that this function cannot work because the REFCKON bit from Control Register is set(1). First, I do not...
Hi,I try to configure a STM32C031K6 to generate an interupt every seconds using RTC Alarm A (RTC clocked by 32.768KHz crystal).I am working on STM32Cube IDE 1.15.1. First issue was that the device configuration tool does not generate any code regardi...
Hello,I am designing some hardware with the STM32H523.I have a rechargeable ML-Lithium Coin battery directly connected to the VBAT pin of the controller. The battery is supposed to power the RTC when there is no VDD. I would like to use the internal ...
Erratum 2.2.1 (Unstable LSI when it clocks RTC or CSS on LSE) indicates the following workaround:If LSI clocks the RTC or when the LSECSSON bit is set, reset the backup domain upon each VDD power up(when the BORRSTF flag is set). If VBAT is separate ...