NFC中的主题 Re: PN5180 READ_DATA issue https://community.nxp.com/t5/NFC/PN5180-READ-DATA-issue/m-p/682638#M2264 <HTML><HEAD></HEAD><BODY><P>Hello Mohamed,</P><P></P><P>Indeed, the whole received data must be read, then the host should decide what data to discard. Please see below from the PN5180 datasheet:</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/19574iF9E55D555746D456/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P></P><P>Regards!</P><P>Jorge Gonzalez</P></BODY></HTML> Sat, 03 Jun 2017 00:06:32 GMT Jorge_Gonzalez 2017-06-03T00:06:32Z PN5180 READ_DATA issue https://community.nxp.com/t5/NFC/PN5180-READ-DATA-issue/m-p/682637#M2263 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>I am having a strange behaviour with my PN5180 device. The device received 3 bytes from the card. I read 2 bytes from the RX buffer using READ_DATA command. Now, I cannot access PN5180. The device is completely locked up.&nbsp;</P><P></P><P>However, if I read all 3 bytes then device is working fine. Is there a requirement that the host should read all the received bytes in one go? I am searching the datasheet but could not locate anything in this regard. Greatly appreciate any help on this.</P><P></P><P>Thanks,</P><P>-Ismail</P></BODY></HTML> Wed, 17 May 2017 14:41:22 GMT https://community.nxp.com/t5/NFC/PN5180-READ-DATA-issue/m-p/682637#M2263 izmile 2017-05-17T14:41:22Z Re: PN5180 READ_DATA issue https://community.nxp.com/t5/NFC/PN5180-READ-DATA-issue/m-p/682638#M2264 <HTML><HEAD></HEAD><BODY><P>Hello Mohamed,</P><P></P><P>Indeed, the whole received data must be read, then the host should decide what data to discard. Please see below from the PN5180 datasheet:</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/19574iF9E55D555746D456/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P></P><P>Regards!</P><P>Jorge Gonzalez</P></BODY></HTML> Sat, 03 Jun 2017 00:06:32 GMT https://community.nxp.com/t5/NFC/PN5180-READ-DATA-issue/m-p/682638#M2264 Jorge_Gonzalez 2017-06-03T00:06:32Z Re: PN5180 READ_DATA issue https://community.nxp.com/t5/NFC/PN5180-READ-DATA-issue/m-p/682639#M2265 <HTML><HEAD></HEAD><BODY><P>Thanks Jorge.&nbsp;</P><P></P><P>It would have been nice to flush the unwanted&nbsp;received data bytes after reading the first few bytes. CLRC663, MFRC632 all had this feature.&nbsp;</P></BODY></HTML> Mon, 05 Jun 2017 09:00:08 GMT https://community.nxp.com/t5/NFC/PN5180-READ-DATA-issue/m-p/682639#M2265 izmile 2017-06-05T09:00:08Z