i.MX Processors中的主题 4 Byte or 7 Byte UID Mifare Classic https://community.nxp.com/t5/i-MX-Processors/4-Byte-or-7-Byte-UID-Mifare-Classic/m-p/1000418#M148320 <HTML><HEAD></HEAD><BODY><P>Hi ,</P><P></P><P>Can anybody tell me how I can tell if my Mifare classic chip is a 4 byte or 7 byte UID please?&nbsp;</P><P></P><P>I have the NXP Mifare reader app on my phone but I don't know which part of the data relates to the UID byte size.&nbsp;</P><P></P><P>Many thanks&nbsp;</P></BODY></HTML> Fri, 07 Feb 2020 10:25:56 GMT mark4 2020-02-07T10:25:56Z 4 Byte or 7 Byte UID Mifare Classic https://community.nxp.com/t5/i-MX-Processors/4-Byte-or-7-Byte-UID-Mifare-Classic/m-p/1000418#M148320 <HTML><HEAD></HEAD><BODY><P>Hi ,</P><P></P><P>Can anybody tell me how I can tell if my Mifare classic chip is a 4 byte or 7 byte UID please?&nbsp;</P><P></P><P>I have the NXP Mifare reader app on my phone but I don't know which part of the data relates to the UID byte size.&nbsp;</P><P></P><P>Many thanks&nbsp;</P></BODY></HTML> Fri, 07 Feb 2020 10:25:56 GMT https://community.nxp.com/t5/i-MX-Processors/4-Byte-or-7-Byte-UID-Mifare-Classic/m-p/1000418#M148320 mark4 2020-02-07T10:25:56Z Re: 4 Byte or 7 Byte UID Mifare Classic https://community.nxp.com/t5/i-MX-Processors/4-Byte-or-7-Byte-UID-Mifare-Classic/m-p/1000419#M148321 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>You can easily check the UID length&nbsp;with the NFC TagInfo App available for <A href="https://play.google.com/store/apps/details?id=com.nxp.taginfolite&amp;hl=es_MX">Android</A> / <A href="https://apps.apple.com/co/app/nfc-taginfo-by-nxp/id1246143596">iOS</A> in their respective stores.</P><P></P><P>Hope it helps.</P><P></P><P>BR,</P><P>Ivan.</P></BODY></HTML> Mon, 10 Feb 2020 23:31:48 GMT https://community.nxp.com/t5/i-MX-Processors/4-Byte-or-7-Byte-UID-Mifare-Classic/m-p/1000419#M148321 IvanRuiz 2020-02-10T23:31:48Z