https://community.nxp.com/t5/i-MX-Processors/Emulating-PWM-using-Flexio-in-imx93-A55-core/m-p/2207291#M242258 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/195420">@IRENE_U</a>&nbsp;<BR /><BR />There is no available driver in linux to emulate PWM with Flexio, you can refer below links.</P> <P><A href="https://www.nxp.com/docs/en/application-note/AN12713.pdf" target="_blank" rel="noopener">https://www.nxp.com/docs/en/application-note/AN12713.pdf</A></P> <P><A href="https://www.nxp.com/docs/en/application-note/AN5209.pdf" target="_blank" rel="noopener">https://www.nxp.com/docs/en/application-note/AN5209.pdf</A></P> <P>&nbsp;</P> <P><A href="https://github.com/zephyrproject-rtos/zephyr/blob/main/drivers/pwm/pwm_nxp_flexio.c" target="_blank" rel="noopener">https://github.com/zephyrproject-rtos/zephyr/blob/main/drivers/pwm/pwm_nxp_flexio.c</A></P> <P><A href="https://github.com/nxp-mcuxpresso/mcux-sdk-examples/tree/MCUX_2.16.100/mcimx93evk/driver_examples/flexio/pwm" target="_blank" rel="noopener">https://github.com/nxp-mcuxpresso/mcux-sdk-examples/tree/MCUX_2.16.100/mcimx93evk/driver_examples/flexio/pwm</A><BR /><BR />Best Regards,<BR />Zhiming</P> Wed, 19 Nov 2025 05:21:59 GMT Zhiming_Liu 2025-11-19T05:21:59Z https://community.nxp.com/t5/i-MX-Processors/Emulating-PWM-using-Flexio-in-imx93-A55-core/m-p/2207206#M242253 <P>Hi, NXP TechSupport</P><P>How to simulate PWM signals using the FlexIO port on i.MX93 with linux system?</P><P>The datasheet mentions that FlexIO has this function, but I couldn't find any relevant code on the NXP forum.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="IRENE_U_0-1763517817753.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/366211i5A147F6DE9825E08/image-size/medium?v=v2&amp;px=400" role="button" title="IRENE_U_0-1763517817753.png" alt="IRENE_U_0-1763517817753.png" /><span class="lia-inline-image-caption" onclick="event.preventDefault();">IRENE_U_0-1763517817753.png</span></span></P><P>&nbsp;</P><P>I only found code for simulating PWM signals using TPM or&nbsp;using the M33 processor but we are using GPIO_IO28 pin.</P><P>Thanks</P> Wed, 19 Nov 2025 02:05:58 GMT https://community.nxp.com/t5/i-MX-Processors/Emulating-PWM-using-Flexio-in-imx93-A55-core/m-p/2207206#M242253 IRENE_U 2025-11-19T02:05:58Z https://community.nxp.com/t5/i-MX-Processors/Emulating-PWM-using-Flexio-in-imx93-A55-core/m-p/2207291#M242258 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/195420">@IRENE_U</a>&nbsp;<BR /><BR />There is no available driver in linux to emulate PWM with Flexio, you can refer below links.</P> <P><A href="https://www.nxp.com/docs/en/application-note/AN12713.pdf" target="_blank" rel="noopener">https://www.nxp.com/docs/en/application-note/AN12713.pdf</A></P> <P><A href="https://www.nxp.com/docs/en/application-note/AN5209.pdf" target="_blank" rel="noopener">https://www.nxp.com/docs/en/application-note/AN5209.pdf</A></P> <P>&nbsp;</P> <P><A href="https://github.com/zephyrproject-rtos/zephyr/blob/main/drivers/pwm/pwm_nxp_flexio.c" target="_blank" rel="noopener">https://github.com/zephyrproject-rtos/zephyr/blob/main/drivers/pwm/pwm_nxp_flexio.c</A></P> <P><A href="https://github.com/nxp-mcuxpresso/mcux-sdk-examples/tree/MCUX_2.16.100/mcimx93evk/driver_examples/flexio/pwm" target="_blank" rel="noopener">https://github.com/nxp-mcuxpresso/mcux-sdk-examples/tree/MCUX_2.16.100/mcimx93evk/driver_examples/flexio/pwm</A><BR /><BR />Best Regards,<BR />Zhiming</P> Wed, 19 Nov 2025 05:21:59 GMT https://community.nxp.com/t5/i-MX-Processors/Emulating-PWM-using-Flexio-in-imx93-A55-core/m-p/2207291#M242258 Zhiming_Liu 2025-11-19T05:21:59Z