Posted on September 03, 2012 at 05:47In my application I want to reduce the power consumption as much as possible, so after a while of no activity detected in the board the system turns off the screen, just writing a cero in the PWM which controls t...
Posted on August 02, 2012 at 17:12Hello, I'm hoping someone can either confirm or deny what I as seeing.I've modified the PWR STANDBY example to check the working of all three WKUP pins.I seem to have a problem when I enable WKUP2.If I only enable W...
Posted on July 01, 2012 at 10:01I use sleep mode WFI.After wake by interrupt I switch on HSI , switch system clock to HSI, and just after it processor performs 5-10 lines and stuck(stop)The effect is very unstable, it stuck in different moments, so...
Posted on March 31, 2012 at 12:02What is the state of GPIO pins when microcontroller is in standby mode? Each pin remembers it's own state: input, output, analog, pull-up, logic level on it? Which document (datasheet, etc) and where specifies this...
Posted on October 20, 2011 at 10:12Hi I have a strange and annoying problem with an STM32L151CB uC. I'm putting the device into STOP mode, and I wake it up again either by an RTC WakeUp IRQ (on EXTI20) or by two other EXTI's (button inputs). In ''n...
Posted on September 17, 2011 at 12:53Hello,I have an application where I have 2 sources that wake my STM32F from STANDBY: RTC and wakeup pin. Both work well as designed (they wake my MCU from STANDBY) but I cannot get the flag to tell what caused th...