S32KのトピックRe: The Problem of TJA1021 https://community.nxp.com/t5/S32K/The-Problem-of-TJA1021/m-p/1048930#M6900 <HTML><HEAD></HEAD><BODY><P>Hi Chen,</P><P></P><P>Yes, when the&nbsp;SLP_N is low, the TJA1021 is put into low power (sleep) mode and the INH pin becomes floating which typically disables the voltage regulator and powers off the MCU.</P><P></P><P>Best regards,</P><P>Tomas</P></BODY></HTML> Tue, 16 Jun 2020 11:44:52 GMT TomasVaverka 2020-06-16T11:44:52Z The Problem of TJA1021 https://community.nxp.com/t5/S32K/The-Problem-of-TJA1021/m-p/1048929#M6899 <HTML><HEAD></HEAD><BODY><P>I use the S32k144 chip and LIN <SPAN class="">transceiver</SPAN>&nbsp;TJA1021. When I set the SLP_N PIN to LOW, then the TJA1021 go to the sleep mode, and the INH change from High to floating. <STRONG>I want to know whether the MCU is powe off now (sleep mode &amp; INH is floating)?</STRONG></P><P><STRONG>Note: Hardware circuit is as folloing.</STRONG></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/112905i4E1B49D73B78830E/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_2.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/112906i5BC1FEB102466BE6/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_2.png" alt="pastedImage_2.png" /></span><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_3.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/112907iFF98403D247EAD28/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_3.png" alt="pastedImage_3.png" /></span></P></BODY></HTML> Tue, 16 Jun 2020 02:15:34 GMT https://community.nxp.com/t5/S32K/The-Problem-of-TJA1021/m-p/1048929#M6899 zjgchenzhen 2020-06-16T02:15:34Z Re: The Problem of TJA1021 https://community.nxp.com/t5/S32K/The-Problem-of-TJA1021/m-p/1048930#M6900 <HTML><HEAD></HEAD><BODY><P>Hi Chen,</P><P></P><P>Yes, when the&nbsp;SLP_N is low, the TJA1021 is put into low power (sleep) mode and the INH pin becomes floating which typically disables the voltage regulator and powers off the MCU.</P><P></P><P>Best regards,</P><P>Tomas</P></BODY></HTML> Tue, 16 Jun 2020 11:44:52 GMT https://community.nxp.com/t5/S32K/The-Problem-of-TJA1021/m-p/1048930#M6900 TomasVaverka 2020-06-16T11:44:52Z Re: The Problem of TJA1021 https://community.nxp.com/t5/S32K/The-Problem-of-TJA1021/m-p/1048931#M6901 <HTML><HEAD></HEAD><BODY><P>Thank you for your strong help. The problem is solved.&nbsp;</P></BODY></HTML> Wed, 17 Jun 2020 00:43:35 GMT https://community.nxp.com/t5/S32K/The-Problem-of-TJA1021/m-p/1048931#M6901 zjgchenzhen 2020-06-17T00:43:35Z