https://community.nxp.com/t5/LPCXpresso-IDE/LPC11A14-Power-Down/m-p/587087#M27509 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by shashankiim on Tue May 07 20:19:26 MST 2013</STRONG><BR /><SPAN>Hi Guys</SPAN><BR /><BR /><SPAN>As per the UM on the analog version (11A14) there are only 2 modes SLEEP mode and POWER DOWN mode. I am trying to get POWER DOWN mode work. According to UM (pic).</SPAN><BR /><BR /><SPAN>I am trying to make on a system that stays in PD mode and wakes up by an ext interrupt, does some activity and goes back to PD mode. </SPAN><BR /><BR /><SPAN>I set the SYS_PLL_PD&nbsp; bit high before __WFI() to make it enter PD mode (ie stop PLL). </SPAN><BR /><SPAN>When an interrupt is received, I turn it low in the ISR, then wait for PPL to stabilise by poling SYSPLLSTAT (to turn on PLL).</SPAN><BR /><BR /><SPAN>However this does not seem to work and once PLL is turned off it does not turn on again.</SPAN><BR /><BR /><SPAN>It would be really nice if someone could help out here on how to properly use PD mode of LPC11A14.</SPAN><BR /><BR /><SPAN>Rgds</SPAN><BR /><SPAN>Shashank</SPAN></BODY></HTML> Thu, 16 Jun 2016 00:08:35 GMT lpcware 2016-06-16T00:08:35Z https://community.nxp.com/t5/LPCXpresso-IDE/LPC11A14-Power-Down/m-p/587087#M27509 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by shashankiim on Tue May 07 20:19:26 MST 2013</STRONG><BR /><SPAN>Hi Guys</SPAN><BR /><BR /><SPAN>As per the UM on the analog version (11A14) there are only 2 modes SLEEP mode and POWER DOWN mode. I am trying to get POWER DOWN mode work. According to UM (pic).</SPAN><BR /><BR /><SPAN>I am trying to make on a system that stays in PD mode and wakes up by an ext interrupt, does some activity and goes back to PD mode. </SPAN><BR /><BR /><SPAN>I set the SYS_PLL_PD&nbsp; bit high before __WFI() to make it enter PD mode (ie stop PLL). </SPAN><BR /><SPAN>When an interrupt is received, I turn it low in the ISR, then wait for PPL to stabilise by poling SYSPLLSTAT (to turn on PLL).</SPAN><BR /><BR /><SPAN>However this does not seem to work and once PLL is turned off it does not turn on again.</SPAN><BR /><BR /><SPAN>It would be really nice if someone could help out here on how to properly use PD mode of LPC11A14.</SPAN><BR /><BR /><SPAN>Rgds</SPAN><BR /><SPAN>Shashank</SPAN></BODY></HTML> Thu, 16 Jun 2016 00:08:35 GMT https://community.nxp.com/t5/LPCXpresso-IDE/LPC11A14-Power-Down/m-p/587087#M27509 lpcware 2016-06-16T00:08:35Z https://community.nxp.com/t5/LPCXpresso-IDE/LPC11A14-Power-Down/m-p/587088#M27510 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by tha on Wed May 08 11:51:25 MST 2013</STRONG><BR /><SPAN>The LPC11A14 only support sleep mode.&nbsp; The "power down mode" you are referring to is just to power off the PLL if it's not in used, i.e. if the system is clocking straight from the IRC.</SPAN></BODY></HTML> Thu, 16 Jun 2016 00:08:36 GMT https://community.nxp.com/t5/LPCXpresso-IDE/LPC11A14-Power-Down/m-p/587088#M27510 lpcware 2016-06-16T00:08:36Z