LPC Microcontrollers中的主题 investigating CPU load https://community.nxp.com/t5/LPC-Microcontrollers/investigating-CPU-load/m-p/713823#M28847 <HTML><HEAD></HEAD><BODY><DIV class=""><P>Hi !</P><P>I'd like to have some advices because I'm stuck !</P><P>I need to measure the CPU load on my device (LPC 11xx). However, it's programmed in bare metal so I don't have access to the classic Linux commands.</P><P>How would you do to have an idea of this consumption and be sure, for example, that you are not using more than xx% of CPU load ?</P><P>Thanks for helping me !</P></DIV></BODY></HTML> Fri, 01 Sep 2017 12:00:49 GMT dexter2306 2017-09-01T12:00:49Z investigating CPU load https://community.nxp.com/t5/LPC-Microcontrollers/investigating-CPU-load/m-p/713823#M28847 <HTML><HEAD></HEAD><BODY><DIV class=""><P>Hi !</P><P>I'd like to have some advices because I'm stuck !</P><P>I need to measure the CPU load on my device (LPC 11xx). However, it's programmed in bare metal so I don't have access to the classic Linux commands.</P><P>How would you do to have an idea of this consumption and be sure, for example, that you are not using more than xx% of CPU load ?</P><P>Thanks for helping me !</P></DIV></BODY></HTML> Fri, 01 Sep 2017 12:00:49 GMT https://community.nxp.com/t5/LPC-Microcontrollers/investigating-CPU-load/m-p/713823#M28847 dexter2306 2017-09-01T12:00:49Z Re: investigating CPU load https://community.nxp.com/t5/LPC-Microcontrollers/investigating-CPU-load/m-p/713824#M28848 <HTML><HEAD></HEAD><BODY><P>Not sure this is possible with a Cortex-M0 as there are no Performance Counters (that are present in Cortex-M3/M4/etc).</P><P></P><P>One thing that you may be able to do is to use a spare GPIO that you set when going to sleep (WFI) and gets cleared when reawakened (in the interrupt handlers), and then using an external scope to monitor that signal.</P></BODY></HTML> Sat, 02 Sep 2017 07:46:56 GMT https://community.nxp.com/t5/LPC-Microcontrollers/investigating-CPU-load/m-p/713824#M28848 converse 2017-09-02T07:46:56Z