https://community.nxp.com/t5/Model-Based-Design-Toolbox-MBDT/varying-switching-frequency-online/m-p/2067170#M10157 <P>Hello NXP team,</P><P>&nbsp;</P><P>I am using MPC5744P MCU and MOTORGD devkit connected to a PMSM and i am trying to change the switching frequency online using freemaster using the block of "flexPWM frequency update" that i have seen in an example of NXP to control the PWM submodules as shown below but it doesn't work and the motor can't even rotate with the initial switching frequency. can any one help in this problem please.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Ahmed_Abd_ElHafez_0-1742810886679.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/329502i35B1770FF5EE23D0/image-size/medium?v=v2&amp;px=400" role="button" title="Ahmed_Abd_ElHafez_0-1742810886679.png" alt="Ahmed_Abd_ElHafez_0-1742810886679.png" /></span></P><P>Than you in advance</P><P>Best regards&nbsp;</P><P>Ahmed</P><P>&nbsp;</P> Mon, 24 Mar 2025 10:09:49 GMT Ahmed_Abd_El-Hafez 2025-03-24T10:09:49Z https://community.nxp.com/t5/Model-Based-Design-Toolbox-MBDT/varying-switching-frequency-online/m-p/2067170#M10157 <P>Hello NXP team,</P><P>&nbsp;</P><P>I am using MPC5744P MCU and MOTORGD devkit connected to a PMSM and i am trying to change the switching frequency online using freemaster using the block of "flexPWM frequency update" that i have seen in an example of NXP to control the PWM submodules as shown below but it doesn't work and the motor can't even rotate with the initial switching frequency. can any one help in this problem please.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Ahmed_Abd_ElHafez_0-1742810886679.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/329502i35B1770FF5EE23D0/image-size/medium?v=v2&amp;px=400" role="button" title="Ahmed_Abd_ElHafez_0-1742810886679.png" alt="Ahmed_Abd_ElHafez_0-1742810886679.png" /></span></P><P>Than you in advance</P><P>Best regards&nbsp;</P><P>Ahmed</P><P>&nbsp;</P> Mon, 24 Mar 2025 10:09:49 GMT https://community.nxp.com/t5/Model-Based-Design-Toolbox-MBDT/varying-switching-frequency-online/m-p/2067170#M10157 Ahmed_Abd_El-Hafez 2025-03-24T10:09:49Z