topic why the drvFOC.pospeSensorless.bEMFObs.TrackObsrv.filterMA.u16NSamples is 2 ? in S12 / MagniV Microcontrollers https://community.nxp.com/t5/S12-MagniV-Microcontrollers/why-the-drvFOC-pospeSensorless-bEMFObs-TrackObsrv-filterMA/m-p/826199#M15918 <HTML><HEAD></HEAD><BODY><P>Dear&nbsp;friend:</P><P>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;I have a problem about stateInit function in AN5327SW.If&nbsp;the drvFOC.pospeSensorless.bEMFObs.TrackObsrv.filterMA.u16NSamples is 2 ,Y(k)=0.75*Y(k-1)+0.25*X(k).</P><P>But I&nbsp;find&nbsp;S12ZVM_PMSMFOC_appcfonfig.xlsm.The flowing picture in the xlsm.</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/74696i74A9D9A881C17558/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P>From the picture which is in the <SPAN>S12ZVM_PMSMFOC_appcfonfig.xlsm</SPAN>,<SPAN>Y(k)=0.981150444*Y(k-1)+0.018849556*X(k),so</SPAN></P><P><SPAN>the drvFOC.pospeSensorless.bEMFObs.TrackObsrv.filterMA.u16NSamples is not 2.</SPAN></P><P><SPAN>the drvFOC.pospeSensorless.bEMFObs.TrackObsrv.filterMA.u16NSamples is&nbsp;approximately&nbsp;6.</SPAN></P></BODY></HTML> Mon, 12 Nov 2018 09:02:25 GMT 2282242919 2018-11-12T09:02:25Z why the drvFOC.pospeSensorless.bEMFObs.TrackObsrv.filterMA.u16NSamples is 2 ? https://community.nxp.com/t5/S12-MagniV-Microcontrollers/why-the-drvFOC-pospeSensorless-bEMFObs-TrackObsrv-filterMA/m-p/826199#M15918 <HTML><HEAD></HEAD><BODY><P>Dear&nbsp;friend:</P><P>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;I have a problem about stateInit function in AN5327SW.If&nbsp;the drvFOC.pospeSensorless.bEMFObs.TrackObsrv.filterMA.u16NSamples is 2 ,Y(k)=0.75*Y(k-1)+0.25*X(k).</P><P>But I&nbsp;find&nbsp;S12ZVM_PMSMFOC_appcfonfig.xlsm.The flowing picture in the xlsm.</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/74696i74A9D9A881C17558/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P>From the picture which is in the <SPAN>S12ZVM_PMSMFOC_appcfonfig.xlsm</SPAN>,<SPAN>Y(k)=0.981150444*Y(k-1)+0.018849556*X(k),so</SPAN></P><P><SPAN>the drvFOC.pospeSensorless.bEMFObs.TrackObsrv.filterMA.u16NSamples is not 2.</SPAN></P><P><SPAN>the drvFOC.pospeSensorless.bEMFObs.TrackObsrv.filterMA.u16NSamples is&nbsp;approximately&nbsp;6.</SPAN></P></BODY></HTML> Mon, 12 Nov 2018 09:02:25 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/why-the-drvFOC-pospeSensorless-bEMFObs-TrackObsrv-filterMA/m-p/826199#M15918 2282242919 2018-11-12T09:02:25Z