https://community.nxp.com/t5/Other-NXP-Products/MFRC630/m-p/1321531#M11767 <P>I have used class 6 antenna for my custom board . Is there any changes I have to do&nbsp; while reading and writing register for class 6 antenna.&nbsp;</P><P>I am using class 6 antenna because space concern.</P><P>I am using&nbsp;MFRC630_PROTO_ISO14443A_106_MILLER_MANCHESTER protocol.&nbsp;</P><P>Can I use CLR663 library for interfacing MFRC630 ? I read that it can be useful for MFRC630.</P><P>Can you please guide me how can i Interface mfrc630 using I2C?</P> Wed, 11 Aug 2021 04:36:42 GMT Deoyani_1 2021-08-11T04:36:42Z https://community.nxp.com/t5/Other-NXP-Products/MFRC630/m-p/1321531#M11767 <P>I have used class 6 antenna for my custom board . Is there any changes I have to do&nbsp; while reading and writing register for class 6 antenna.&nbsp;</P><P>I am using class 6 antenna because space concern.</P><P>I am using&nbsp;MFRC630_PROTO_ISO14443A_106_MILLER_MANCHESTER protocol.&nbsp;</P><P>Can I use CLR663 library for interfacing MFRC630 ? I read that it can be useful for MFRC630.</P><P>Can you please guide me how can i Interface mfrc630 using I2C?</P> Wed, 11 Aug 2021 04:36:42 GMT https://community.nxp.com/t5/Other-NXP-Products/MFRC630/m-p/1321531#M11767 Deoyani_1 2021-08-11T04:36:42Z https://community.nxp.com/t5/Other-NXP-Products/MFRC630/m-p/1323357#M11795 <H3 style="margin: 0in; font-family: Calibri; font-size: 11.0pt;">&nbsp;</H3> <H3 style="margin: 0in; font-family: Calibri; font-size: 11.0pt;">Thank you for your interest in our products, we really appreciate it.</H3> <H3 style="margin: 0in; font-family: Calibri; font-size: 11.0pt;">You shouldn't have major issues with using a Class 6 antenna if your matching circuit is properly done, please refer to our <A href="https://www.nxp.com/docs/en/application-note/AN11019.pdf" target="_blank">AN11019 </A>Document. There you will find the guidelines and recommendations about its design.</H3> <H3 style="margin: 0in; font-family: Calibri; font-size: 11.0pt;">&nbsp;</H3> <H3 style="margin: 0in; font-family: Calibri; font-size: 11.0pt;">About the question regarding the CLR663 Library; yes as the <A href="https://www.nxp.com/docs/en/user-guide/UM10663.pdf" target="_blank">User Manual </A>is intended to be used with MFR630, MFR631, or CLR663.</H3> <H3 style="margin: 0in; font-family: Calibri; font-size: 11.0pt;">You can download the Library and follow the <A href="https://www.nxp.com/docs/en/application-note/AN11022.pdf" target="_blank">AN11022 </A>to import it to MCUXpresso where you will find a series of examples that will be very useful for your project.</H3> <H3 style="margin: 0in; font-family: Calibri; font-size: 11.0pt;">&nbsp;</H3> <H3 style="margin: 0in; font-family: Calibri; font-size: 11.0pt;">I hope this information can help you with the design of your application.</H3> Fri, 13 Aug 2021 17:51:18 GMT https://community.nxp.com/t5/Other-NXP-Products/MFRC630/m-p/1323357#M11795 Fabian_R 2021-08-13T17:51:18Z