https://community.nxp.com/t5/NFC/PN7362-power-saving-issue-EOS/m-p/2184462#M13682 <P>Hi,&nbsp;</P><P><SPAN class=""><SPAN class=""><SPAN class="">We have 4pcs/1K PN7362 modules, but they won't wake up from power-saving mode. What's the problem?</SPAN></SPAN><SPAN class=""><SPAN class=""><BR />In normal mode, the PN7362 modules function normally, detecting cards and outputting their UIDs... </SPAN></SPAN></SPAN></P><P><SPAN class=""><SPAN class=""><SPAN class="">If power-saving mode is enabled on the PC, the polling time will change when the module enters power-saving mode. There will be no response when a card is brought close to the reader, but the waveform can be seen on an oscilloscope during polling.</SPAN></SPAN> </SPAN></P><P><SPAN class=""><SPAN class=""><SPAN class="">After resetting, the module will function normally.</SPAN></SPAN><SPAN class=""><SPAN class=""> Why?</SPAN></SPAN> <SPAN class=""><SPAN class="">Is it EOS?</SPAN></SPAN> <SPAN class=""><SPAN class="">Why does it only work in power-saving mode?</SPAN></SPAN></SPAN></P><P>&nbsp;</P> Mon, 13 Oct 2025 02:43:31 GMT Tedlai99 2025-10-13T02:43:31Z https://community.nxp.com/t5/NFC/PN7362-power-saving-issue-EOS/m-p/2184462#M13682 <P>Hi,&nbsp;</P><P><SPAN class=""><SPAN class=""><SPAN class="">We have 4pcs/1K PN7362 modules, but they won't wake up from power-saving mode. What's the problem?</SPAN></SPAN><SPAN class=""><SPAN class=""><BR />In normal mode, the PN7362 modules function normally, detecting cards and outputting their UIDs... </SPAN></SPAN></SPAN></P><P><SPAN class=""><SPAN class=""><SPAN class="">If power-saving mode is enabled on the PC, the polling time will change when the module enters power-saving mode. There will be no response when a card is brought close to the reader, but the waveform can be seen on an oscilloscope during polling.</SPAN></SPAN> </SPAN></P><P><SPAN class=""><SPAN class=""><SPAN class="">After resetting, the module will function normally.</SPAN></SPAN><SPAN class=""><SPAN class=""> Why?</SPAN></SPAN> <SPAN class=""><SPAN class="">Is it EOS?</SPAN></SPAN> <SPAN class=""><SPAN class="">Why does it only work in power-saving mode?</SPAN></SPAN></SPAN></P><P>&nbsp;</P> Mon, 13 Oct 2025 02:43:31 GMT https://community.nxp.com/t5/NFC/PN7362-power-saving-issue-EOS/m-p/2184462#M13682 Tedlai99 2025-10-13T02:43:31Z https://community.nxp.com/t5/NFC/PN7362-power-saving-issue-EOS/m-p/2186342#M13696 <P>Do you mean LPCD? If yes, please refer this document for details.</P> <P><A href="https://www.nxp.com/docs/en/application-note/AN11785.pdf" target="_blank">AN11785 PN7462AU LPCD and Standby mode</A></P> Wed, 15 Oct 2025 06:54:48 GMT https://community.nxp.com/t5/NFC/PN7362-power-saving-issue-EOS/m-p/2186342#M13696 jimmychan 2025-10-15T06:54:48Z