topic MC9S12XS128MAA in S12 / MagniV Microcontrollers https://community.nxp.com/t5/S12-MagniV-Microcontrollers/MC9S12XS128MAA/m-p/399753#M10985 <HTML><HEAD></HEAD><BODY><P><SPAN style="color: #000000; font-size: 14pt; font-family: Calibri;">I am using the MC9S12XS128MAA microcontroller .When the frequency is set to 16M, the microcontroller works normally , but set to 80M, it could only run 3-5s,and then collapses. Microcontroller on the Minimum system board now I use has been burned before. Please help me find out the problem, thank you.</SPAN></P><P><SPAN style="color: #000000; font-family: 宋体; font-size: 12pt;">&nbsp; </SPAN></P></BODY></HTML> Sat, 11 Apr 2015 12:16:01 GMT hhcao 2015-04-11T12:16:01Z MC9S12XS128MAA https://community.nxp.com/t5/S12-MagniV-Microcontrollers/MC9S12XS128MAA/m-p/399753#M10985 <HTML><HEAD></HEAD><BODY><P><SPAN style="color: #000000; font-size: 14pt; font-family: Calibri;">I am using the MC9S12XS128MAA microcontroller .When the frequency is set to 16M, the microcontroller works normally , but set to 80M, it could only run 3-5s,and then collapses. Microcontroller on the Minimum system board now I use has been burned before. Please help me find out the problem, thank you.</SPAN></P><P><SPAN style="color: #000000; font-family: 宋体; font-size: 12pt;">&nbsp; </SPAN></P></BODY></HTML> Sat, 11 Apr 2015 12:16:01 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/MC9S12XS128MAA/m-p/399753#M10985 hhcao 2015-04-11T12:16:01Z Re: MC9S12XS128MAA https://community.nxp.com/t5/S12-MagniV-Microcontrollers/MC9S12XS128MAA/m-p/399754#M10986 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>80MHz - What is this frequency generated from?</P><P>Is it BUSCLK or PLLCLK.</P><P>If you use PLL to set the frequency then maximum PLLCLK is 80MHz and maximum BUSCLK is 40MHz.</P><P></P><P>In order to use correct PLL setup you can use PLL calculator at the page <A href="http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=S12XE&amp;fpsp=1&amp;tab=Design_Tools_Tab" title="http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=S12XE&amp;fpsp=1&amp;tab=Design_Tools_Tab">http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=S12XE&amp;fpsp=1&amp;tab=Design_Tools_Tab</A></P><P>in the section <A class="inside_font" href="http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=S12XE&amp;fpsp=1&amp;tab=Design_Tools_Tab">Software Development Tools (33)</A><A class="inside_font" href="http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=S12XE&amp;fpsp=1&amp;tab=Design_Tools_Tab"><SPAN class="expand-all"></SPAN></A>: <A href="http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=S12XE&amp;fpsp=1&amp;tab=Design_Tools_Tab">S12XESW</A> the file S12XE IPLL Calculator Software can be found. </P><P>Best regards,</P><P>Ladislav</P></BODY></HTML> Mon, 13 Apr 2015 10:07:31 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/MC9S12XS128MAA/m-p/399754#M10986 lama 2015-04-13T10:07:31Z