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...
Im attempting to put the cpu to sleep between ticks of timer 15 on a stm32L432, The LED flashs without the Sleep code however it never wakes up from the timer interuptvoid HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef * htim) { HAL_ResumeTick(); if...
Hello Community,I am programming the STM32L562E-DK discovery board and working with the Standby low-power mode. In the data sheet there are 3 standby variations explained:Standby with Full SRAM2 data retentionStandby with 4kB SRAM2 data retentionStan...
Hi,i am using a STM32L010K8 MCU and i want to wake up from stop mode when a RTC-Wakeup interrupt occours. Here in this example i set the RTC wakeup interrupt for 30 seconds. Without entering the sleep mode the RTC IRQ works fine. But if the MCU enter...
I'm trying to use the 4K backup RAM on the STM32H743. The RTC is working and keeps time so I know the battery system is OK. I can read and write to the backup RAM OK but it loses all data on power off.I've enabled access as follows:HAL_PWREx_EnableBk...
Hello ST community,I'm encountering an issue with my STM32 MCU where I observe higher than expected current consumption in stop mode when the SPI2 port is activated, and interestingly, the current consumption decreases when I deinitialize the MOSI pi...
I want to be getting my characters , including the first one from uart at 115200 baud rate and use UART to wake up from sleep, how do I do this ? The sleep mode and low power sleep mode, with all gpios changed to analog no pull and all other peripher...
On stm32u5xx HAL_PWREx_EnterSHUTDOWNMode will not work when a DMA is still active.The fun part is, that after a uart dma transmit, the DMA transmit enable flag is not cleared due the undocumented define USART_DMAREQUESTS_SW_WA.What's the reason behi...
Hello.STM32G070CI'm having some issues with the WUF flag when exiting Standby. Exit mode is set to WKUP1 (PA0).I poll the register after exiting standby and in the PWR->SR1 register, the SBF flag is set, but the WUF1 flag is cleared.I also noticed an...