topic Re: freemaster in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/freemaster/m-p/491269#M30326 <HTML><HEAD></HEAD><BODY><P>Hi Dan.</P><P></P><P>Generally following equation is applies:</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="freemaster2.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/56400i7C635742CFDAE7C0/image-size/large?v=v2&amp;px=999" role="button" title="freemaster2.png" alt="freemaster2.png" /></span></P><P>You must know scale of frequency. Scale * Q.15.</P><P><span class="lia-inline-image-display-wrapper" image-alt="freemaster.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/56402i71473FA9FE609790/image-size/large?v=v2&amp;px=999" role="button" title="freemaster.png" alt="freemaster.png" /></span></P><P>For example scale = 1000 Hz, if Q1.15 = 0.4, then frequency is 1000*0.4 = 400 Hz</P><P></P><P>I hope this helps.<BR />Best Regards,</P><P>Iva</P></BODY></HTML> Fri, 04 Mar 2016 13:21:49 GMT ivadorazinova 2016-03-04T13:21:49Z freemaster https://community.nxp.com/t5/Kinetis-Microcontrollers/freemaster/m-p/491267#M30324 <HTML><HEAD></HEAD><BODY><P>how does your freemaster gui (or pgm) calculate a frequency from rpm entered in the gu ?</P></BODY></HTML> Fri, 26 Feb 2016 12:16:24 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/freemaster/m-p/491267#M30324 danvandre 2016-02-26T12:16:24Z Re: freemaster https://community.nxp.com/t5/Kinetis-Microcontrollers/freemaster/m-p/491268#M30325 <HTML><HEAD></HEAD><BODY><P>Hi Dan,</P><P></P><P>It would be helpful if you could provide us more information, which MCU are you using? Are you running a demo project?</P><P></P><P>Thanks in advance!</P><P></P><P></P><P>Best Regards,</P><P>Carlos Mendoza</P><P>Technical Support Engineer</P></BODY></HTML> Fri, 04 Mar 2016 01:11:01 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/freemaster/m-p/491268#M30325 Carlos_Mendoza 2016-03-04T01:11:01Z Re: freemaster https://community.nxp.com/t5/Kinetis-Microcontrollers/freemaster/m-p/491269#M30326 <HTML><HEAD></HEAD><BODY><P>Hi Dan.</P><P></P><P>Generally following equation is applies:</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="freemaster2.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/56400i7C635742CFDAE7C0/image-size/large?v=v2&amp;px=999" role="button" title="freemaster2.png" alt="freemaster2.png" /></span></P><P>You must know scale of frequency. Scale * Q.15.</P><P><span class="lia-inline-image-display-wrapper" image-alt="freemaster.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/56402i71473FA9FE609790/image-size/large?v=v2&amp;px=999" role="button" title="freemaster.png" alt="freemaster.png" /></span></P><P>For example scale = 1000 Hz, if Q1.15 = 0.4, then frequency is 1000*0.4 = 400 Hz</P><P></P><P>I hope this helps.<BR />Best Regards,</P><P>Iva</P></BODY></HTML> Fri, 04 Mar 2016 13:21:49 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/freemaster/m-p/491269#M30326 ivadorazinova 2016-03-04T13:21:49Z