Hello,We would like to inquire about the abnormal operation of the RTC of STM32F427IIT6 included in our product. Please check the below.Used MCUSTM32F427IIT6BackgroundRTC is used for Log, so it is used very frequentlyIt has been 4 to 5 years since th...
Hi. I need help with RTC on STM32F103. I would like to edit the time (hours and minutes) in my RTC using a button. When I add an hour the maximum vartosc I can reach in the RTC->CNTL register is 65535 (18h20min), when this value is exceeded, the regi...
Hi, I use RTC alarm to wake up from STOP mode I have STM32F030C8T6. During initialization I have set 5s and everything works as it should. But I would need to change the interval to maybe 30s while the program is running. The problem is that the chan...
Hi all,I want to measure the power consumption on my board which has a STM32L431CC. Other than the µC, there is nothing left on the board excepted for an RC filter on the NRST pin, I removed the RTC quartz.Inspired by the example code i found, i wrot...
With reference to STM32L496xx datasheet (DS11585 rev 17) page 152 table 49, can maximum values be provided for IVDD_VBAT with RTC enabled and clocked by LSE quartz, for VBAT=3.0V and at 25°C and 55°C? (The red marked cells)
Hi, I am planning to use stm32g030f6 and also use RTC peripheral with super cap to keep date. However, this IC does not have VBAT pin. Reading datasheet said, that RTC domain can also be supplied from VDD/VDDA pin, but this means that when a voltage ...
Hi , I need for my applicetion two maner of wake-up from Standby mode. One is regular wake up every one hour and second is asynchronous wake up by external signal. I have used WKUP1 signal on PA0 input for external wake up. It is working corectly o...
I have an app where I timestamp all the data I get from a bunch of external devices. I'm trying to come up with the fastest way to read the RTC and have 2 approaches, one using snprintf and some LL driver code that's pretty easy to read. It's not m...
We are developing a device that periodically boots in Sleep mode using the STM32G04.Set the WakeUpTime with HAL_RTCEx_SetWakeUpTimer_IT and enter Sleep with HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);.If you make a program to ...
We have a very weird behavior in a battery powered IoT device. We should have a very low STOP mode current draw of 1.4 uA @ 3 VCC. The problem is, as soon as we use the RTC Alarm just once and although the alarm already fired during NORMAL operation,...