topic DSP library from NXP, how does the PID work? in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/DSP-library-from-NXP-how-does-the-PID-work/m-p/515964#M1426 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by riktw on Sat May 26 10:40:07 MST 2012</STRONG><BR /><SPAN>Hello</SPAN><BR /><BR /><SPAN>I am playing with the DSP library from NXP a bit.</SPAN><BR /><SPAN><SPAN>You can find the DSP appnote from NXP here: </SPAN><A class="jive-link-external-small" href="https://community.nxp.com/external-link.jspa?url=http%3A%2F%2Fwww.nxp.com%2Fdocuments%2Fapplication_note%2FAN10913.pdf" rel="nofollow" target="_blank">http://www.nxp.com/documents/application_note/AN10913.pdf</A></SPAN><BR /><SPAN>I got most functions figured out, only the PID function confuses me a bit.</SPAN><BR /><SPAN>It required the well known variables, Kp, Ki and Kd but then we got integrated error, last error and si_error.</SPAN><BR /><SPAN>The information is a bit limited on what is what.</SPAN><BR /><BR /><SPAN>Last error is one I know, it's the feedback for the PID system, output - setpoint.</SPAN><BR /><SPAN>But si_error and integrated error are the ones I can't place.</SPAN><BR /><SPAN>And where can I enter my setpoint?</SPAN><BR /><BR /><SPAN>Anyone ever worked with this PID library?</SPAN><BR /><BR /><SPAN>Rik</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:22:24 GMT lpcware 2016-06-15T17:22:24Z DSP library from NXP, how does the PID work? https://community.nxp.com/t5/LPC-Microcontrollers/DSP-library-from-NXP-how-does-the-PID-work/m-p/515964#M1426 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by riktw on Sat May 26 10:40:07 MST 2012</STRONG><BR /><SPAN>Hello</SPAN><BR /><BR /><SPAN>I am playing with the DSP library from NXP a bit.</SPAN><BR /><SPAN><SPAN>You can find the DSP appnote from NXP here: </SPAN><A class="jive-link-external-small" href="https://community.nxp.com/external-link.jspa?url=http%3A%2F%2Fwww.nxp.com%2Fdocuments%2Fapplication_note%2FAN10913.pdf" rel="nofollow" target="_blank">http://www.nxp.com/documents/application_note/AN10913.pdf</A></SPAN><BR /><SPAN>I got most functions figured out, only the PID function confuses me a bit.</SPAN><BR /><SPAN>It required the well known variables, Kp, Ki and Kd but then we got integrated error, last error and si_error.</SPAN><BR /><SPAN>The information is a bit limited on what is what.</SPAN><BR /><BR /><SPAN>Last error is one I know, it's the feedback for the PID system, output - setpoint.</SPAN><BR /><SPAN>But si_error and integrated error are the ones I can't place.</SPAN><BR /><SPAN>And where can I enter my setpoint?</SPAN><BR /><BR /><SPAN>Anyone ever worked with this PID library?</SPAN><BR /><BR /><SPAN>Rik</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:22:24 GMT https://community.nxp.com/t5/LPC-Microcontrollers/DSP-library-from-NXP-how-does-the-PID-work/m-p/515964#M1426 lpcware 2016-06-15T17:22:24Z