https://community.nxp.com/t5/S32K/S32K144-Set-FTM-Clock-source-as-32khz-by-using-RTC-CLK-problems/m-p/1275493#M10859 <P>hi,the SDK i used is RTM3.0. i want a low frequency like 1khz to use FTM counter,so i use RTC_CLK as my FTM clock source.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="p1.JPG" style="width: 419px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/144536i31B56E3FF81B2FF3/image-dimensions/419x144?v=v2" width="419" height="144" role="button" title="p1.JPG" alt="p1.JPG" /></span></P><P>my processor expert setting show in the next picture.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="p2.JPG" style="width: 646px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/144538i6E965B7F07AF0F8B/image-dimensions/646x240?v=v2" width="646" height="240" role="button" title="p2.JPG" alt="p2.JPG" /></span></P><P>but after i initial every things,i use&nbsp;FTM_DRV_GetFrequency() function after initialization,the FTM frequency is 250000hz=8000Mhz/32.</P><P>why the frequency setting didn't make effects?</P><P>@<A href="https://community.nxp.com/t5/user/viewprofilepage/user-id/57959" target="_self"><SPAN class="">Robin_Shen</SPAN></A><a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/61445">@nxp</a></P><P>&nbsp;</P> Wed, 12 May 2021 08:39:28 GMT julywu 2021-05-12T08:39:28Z https://community.nxp.com/t5/S32K/S32K144-Set-FTM-Clock-source-as-32khz-by-using-RTC-CLK-problems/m-p/1275493#M10859 <P>hi,the SDK i used is RTM3.0. i want a low frequency like 1khz to use FTM counter,so i use RTC_CLK as my FTM clock source.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="p1.JPG" style="width: 419px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/144536i31B56E3FF81B2FF3/image-dimensions/419x144?v=v2" width="419" height="144" role="button" title="p1.JPG" alt="p1.JPG" /></span></P><P>my processor expert setting show in the next picture.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="p2.JPG" style="width: 646px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/144538i6E965B7F07AF0F8B/image-dimensions/646x240?v=v2" width="646" height="240" role="button" title="p2.JPG" alt="p2.JPG" /></span></P><P>but after i initial every things,i use&nbsp;FTM_DRV_GetFrequency() function after initialization,the FTM frequency is 250000hz=8000Mhz/32.</P><P>why the frequency setting didn't make effects?</P><P>@<A href="https://community.nxp.com/t5/user/viewprofilepage/user-id/57959" target="_self"><SPAN class="">Robin_Shen</SPAN></A><a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/61445">@nxp</a></P><P>&nbsp;</P> Wed, 12 May 2021 08:39:28 GMT https://community.nxp.com/t5/S32K/S32K144-Set-FTM-Clock-source-as-32khz-by-using-RTC-CLK-problems/m-p/1275493#M10859 julywu 2021-05-12T08:39:28Z