https://community.nxp.com/t5/High-Performance-Analog-Front/How-to-implement-Loopback-Method-2-amp-3-with-MC33774ATP/m-p/2297843#M155 <P>Hi ErikaC,</P><P>&nbsp;</P><P>No, but the board i use reference from <SPAN>RD-HVBMSCT800BUN(</SPAN><SPAN>S32K358 + MC33665A + MC33774ATP)</SPAN></P> Thu, 22 Jan 2026 05:26:36 GMT CHENGYANG 2026-01-22T05:26:36Z https://community.nxp.com/t5/High-Performance-Analog-Front/How-to-implement-Loopback-Method-2-amp-3-with-MC33774ATP/m-p/2295846#M152 <P>Hi NXP team,</P><P>I can transmission/reception data with MC33774ATP using Loopback Method 1.</P><P>How should I configure the MCAL to implement Loopback Method 2 and Loopback Method 3?</P><P>I've tried setting Loopback method 2, but no data received in actual operation. My settings are as follows (use TPL port0 &amp; port1):</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="CHENGYANG_1-1768813755287.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/373330iF778FE6E79022F70/image-size/large?v=v2&amp;px=999" role="button" title="CHENGYANG_1-1768813755287.png" alt="CHENGYANG_1-1768813755287.png" /></span></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="CHENGYANG_2-1768813772351.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/373331i65A765BAD9363704/image-size/large?v=v2&amp;px=999" role="button" title="CHENGYANG_2-1768813772351.png" alt="CHENGYANG_2-1768813772351.png" /></span></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="CHENGYANG_3-1768813786458.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/373333iBBA39240F206120D/image-size/large?v=v2&amp;px=999" role="button" title="CHENGYANG_3-1768813786458.png" alt="CHENGYANG_3-1768813786458.png" /></span></P><P>&nbsp;</P><P>I can't find option of Loopback Method 3 in my&nbsp;environment,&nbsp;&nbsp;<STRONG>I use RTD3.0.0 &amp; BMS SDK 1.0.1</STRONG></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="CHENGYANG_0-1768813422638.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/373328iB531EC0CFC336295/image-size/large?v=v2&amp;px=999" role="button" title="CHENGYANG_0-1768813422638.png" alt="CHENGYANG_0-1768813422638.png" /></span></P><P>&nbsp;</P><P>Are there any example projects that can refer to this requirement? Thanks.</P><P>&nbsp;</P><P>&nbsp;</P><P>&nbsp;</P> Mon, 19 Jan 2026 09:20:05 GMT https://community.nxp.com/t5/High-Performance-Analog-Front/How-to-implement-Loopback-Method-2-amp-3-with-MC33774ATP/m-p/2295846#M152 CHENGYANG 2026-01-19T09:20:05Z https://community.nxp.com/t5/High-Performance-Analog-Front/How-to-implement-Loopback-Method-2-amp-3-with-MC33774ATP/m-p/2297594#M154 <P>Hello,</P> <P>Are you using&nbsp;MC33774 evaluation board?</P> Wed, 21 Jan 2026 20:30:42 GMT https://community.nxp.com/t5/High-Performance-Analog-Front/How-to-implement-Loopback-Method-2-amp-3-with-MC33774ATP/m-p/2297594#M154 ErikaC 2026-01-21T20:30:42Z https://community.nxp.com/t5/High-Performance-Analog-Front/How-to-implement-Loopback-Method-2-amp-3-with-MC33774ATP/m-p/2297843#M155 <P>Hi ErikaC,</P><P>&nbsp;</P><P>No, but the board i use reference from <SPAN>RD-HVBMSCT800BUN(</SPAN><SPAN>S32K358 + MC33665A + MC33774ATP)</SPAN></P> Thu, 22 Jan 2026 05:26:36 GMT https://community.nxp.com/t5/High-Performance-Analog-Front/How-to-implement-Loopback-Method-2-amp-3-with-MC33774ATP/m-p/2297843#M155 CHENGYANG 2026-01-22T05:26:36Z https://community.nxp.com/t5/High-Performance-Analog-Front/How-to-implement-Loopback-Method-2-amp-3-with-MC33774ATP/m-p/2298521#M156 <P>Thank you for the information. I am currently reviewing this internally and appreciate your patience.</P> Thu, 22 Jan 2026 17:44:41 GMT https://community.nxp.com/t5/High-Performance-Analog-Front/How-to-implement-Loopback-Method-2-amp-3-with-MC33774ATP/m-p/2298521#M156 ErikaC 2026-01-22T17:44:41Z