MCUXpresso GeneralのトピックHow to apply FIR / IIR Filter in GPIO_ISR Routine? https://community.nxp.com/t5/MCUXpresso-General/How-to-apply-FIR-IIR-Filter-in-GPIO-ISR-Routine/m-p/865613#M1441 <HTML><HEAD></HEAD><BODY><P>GPIO Interrupt using for optocoupler in PORTE PIN2... This port don't have a digital filter in Hardware.... how&nbsp; to apply software (FIR or IIR) filter...</P><P>Please Help me....</P><P>Advance Thanks</P></BODY></HTML> Sat, 30 Mar 2019 16:31:44 GMT chennai2chn 2019-03-30T16:31:44Z How to apply FIR / IIR Filter in GPIO_ISR Routine? https://community.nxp.com/t5/MCUXpresso-General/How-to-apply-FIR-IIR-Filter-in-GPIO-ISR-Routine/m-p/865613#M1441 <HTML><HEAD></HEAD><BODY><P>GPIO Interrupt using for optocoupler in PORTE PIN2... This port don't have a digital filter in Hardware.... how&nbsp; to apply software (FIR or IIR) filter...</P><P>Please Help me....</P><P>Advance Thanks</P></BODY></HTML> Sat, 30 Mar 2019 16:31:44 GMT https://community.nxp.com/t5/MCUXpresso-General/How-to-apply-FIR-IIR-Filter-in-GPIO-ISR-Routine/m-p/865613#M1441 chennai2chn 2019-03-30T16:31:44Z Re: How to apply FIR / IIR Filter in GPIO_ISR Routine? https://community.nxp.com/t5/MCUXpresso-General/How-to-apply-FIR-IIR-Filter-in-GPIO-ISR-Routine/m-p/865614#M1442 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>I would recommend to download <A href="https://mcuxpresso.nxp.com/en/select">MCUXpresso SDK software</A> package.</P><P>The SDK software package includes CMSIS DSP library, which provides FIR example with below path:</P><P>..\SDK_2.5.0_FRDM-K66F\CMSIS\DSP_Lib\Examples\ARM</P><P></P><P>Wish it helps.</P><P><BR />Have a great day,<BR />Mike</P><P></P><P>-------------------------------------------------------------------------------<BR />Note:<BR />- If this post answers your question, please click the "Mark Correct" button. Thank you!</P><P></P><P>- We are following threads for 7 weeks after the last post, later replies are ignored<BR /> Please open a new thread and refer to the closed one, if you have a related question at a later point in time.<BR />-------------------------------------------------------------------------------</P></BODY></HTML> Tue, 02 Apr 2019 03:06:31 GMT https://community.nxp.com/t5/MCUXpresso-General/How-to-apply-FIR-IIR-Filter-in-GPIO-ISR-Routine/m-p/865614#M1442 Hui_Ma 2019-04-02T03:06:31Z