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Can a STM32 be used in low power mode?
According to the AN4759 Using hardware real-time clock (RTC) in low-power modes with STM32 microcontrollers, page 36/51 we can read the following statement :
Is there a stop1 / stop2 program in STM32F4?
STOP1/STOP2 does not exist in STM32F4. The source of the tested program is shown below. The main operations are as follows. The message is output every 1 second. Press and hold User Buttons (PA0) for 3 seconds to switch to Standby mode. In Standby mode, press the User Buttton (PA0) to wake up.
Can a RTC be used in low power mode?
Depending on the application constraints, such as the maximum or average current consumption, the frequency of wake-ups, or alternatively the maximum wake-up time, several low-power modes can be used. The RTC peripheral can be active in the following low-power modes:
What kind of SRAM does the STM32L4 series use?
The STM32L4/L4+ Series implements three Stop modes with full SRAM and peripheral retention capability andcapacity to wakeup in 1 µs thanks to the use of the MSI up to 48 MHz.
What happens to RTC clock when power is restored?
Now, when power is restored, the microcontroller restarts from the setup () routine (where there is rtc.setTime), it takes the new time and loses the current time. Is it possible to implement the programmable voltage detector (PVD) to send the microcontroller in low power mode, and wake up when power is restored without going through setup ()?
When does the RTC clock go into standby mode?
Standby mode if the RTC clock is provided by LSE or LSI Shutdown mode if the RTC clock is provided by LSE (b) Since you are using the LSI, the lowest power mode achievable for your RTC peripheral is the Standby mode. The shutdown mode is reached when you power off your system (even if you have VBAT connected), which is your case.
Is the STM32 RTC module connected to VBAT?
I am using a stm32h753 and stm32cubemx, and trying to run the RTC module on VBAT. To do this I have connected a battery to the MCU.