I try to use standby mode on STM32L071. I slightly modified my code that worked fine on STM32L452RE. I use RTC wakeup and RTC alarms to be sure it will wake up (if RTC wakeup fails, 5 second later is ALARM A then 5 second later ALARM B)Code below. na...

VRefint is between 1.18 and 1.22V depending on temperature. As in our hardware we have termometer available i would like to know more precisely what Vrefint voltage actually is.What are exactly the relation between temperature and Vrefint voltage?equ...

I want to modify option bytes to set up readout protection. I am programming this device with my own programming tool (UART+BOOT0+RESET pin). Programming works fine using bootloader protocol. Setting readout protection doesn't. After setting it up it...

I initialize RTC timer by first clearing RTC_CR register,then waiting until WUTWF bit is on, then setting RTC WUTR register to 100, and RTC_CR to 0x4420 (wakeup timer enable, wakeup interrupt enable, bypass shadow). Bypass shadow register is set for ...

I run my CPU mostly (when possible) in stop2 mode. I want EXTI interrupt from few pins to wake it up.                                What i found is that sometimes it doesn't.                                                                           ...