Kinetis MicrocontrollersのトピックKL25 consumption on Low Power modes with Freedom board https://community.nxp.com/t5/Kinetis-Microcontrollers/KL25-consumption-on-Low-Power-modes-with-Freedom-board/m-p/195388#M2576 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>I am trying to reach the datasheet consumption values with the Freedom eval board, but I don't manage it.</P><P>On the different low leakage stop mode I measure 2.8uA added in comparison to datasheets values, except on VLLS0 where I have 300nA added.</P><P>The fact that I get a closer result on VLLS0 make me think that there is no external leakage on the board, but the 2.8uA configuration for the other modes is still important. I guess I am wrong in the configuration and forget something to reach optimal value.</P><P></P><P>Do you have an idea of the potential source of that extra consumption?</P><P>In my code, I just disable watchdog and clock monitoring and go to the desired Stop mode.</P><P></P><P>Thank you for the help.</P><P></P><P>Antoine</P></BODY></HTML> Fri, 30 Nov 2012 16:30:41 GMT antoineodonne 2012-11-30T16:30:41Z KL25 consumption on Low Power modes with Freedom board https://community.nxp.com/t5/Kinetis-Microcontrollers/KL25-consumption-on-Low-Power-modes-with-Freedom-board/m-p/195388#M2576 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>I am trying to reach the datasheet consumption values with the Freedom eval board, but I don't manage it.</P><P>On the different low leakage stop mode I measure 2.8uA added in comparison to datasheets values, except on VLLS0 where I have 300nA added.</P><P>The fact that I get a closer result on VLLS0 make me think that there is no external leakage on the board, but the 2.8uA configuration for the other modes is still important. I guess I am wrong in the configuration and forget something to reach optimal value.</P><P></P><P>Do you have an idea of the potential source of that extra consumption?</P><P>In my code, I just disable watchdog and clock monitoring and go to the desired Stop mode.</P><P></P><P>Thank you for the help.</P><P></P><P>Antoine</P></BODY></HTML> Fri, 30 Nov 2012 16:30:41 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/KL25-consumption-on-Low-Power-modes-with-Freedom-board/m-p/195388#M2576 antoineodonne 2012-11-30T16:30:41Z Re: KL25 consumption on Low Power modes with Freedom board https://community.nxp.com/t5/Kinetis-Microcontrollers/KL25-consumption-on-Low-Power-modes-with-Freedom-board/m-p/195389#M2577 <HTML><HEAD></HEAD><BODY><P>Hi Antoine, besides disabling the watchdog, there are some other things you need to take into consideration to achieve the power consumption figures depicted in the datasheet, please take a look at our Low power management application note for kinetis architectures:</P><P></P><P><A href="http://cache.freescale.com/files/32bit/doc/app_note/AN4503.pdf" title="http://cache.freescale.com/files/32bit/doc/app_note/AN4503.pdf">http://cache.freescale.com/files/32bit/doc/app_note/AN4503.pdf</A></P></BODY></HTML> Tue, 11 Dec 2012 18:37:23 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/KL25-consumption-on-Low-Power-modes-with-Freedom-board/m-p/195389#M2577 apanecatl 2012-12-11T18:37:23Z