https://community.nxp.com/t5/S32K/S32K344-CAN-communication/m-p/2019558#M44598 <P>Hi NXP team,</P><P>I am trying to change FlexCAN_Ip_Example_S32K344 (in loopback mode) to work in normal mode.</P><P>In this case I do not care about Transceivers, only care about configuring CAN0_Tx, CAN0_Rx pins to work properly by connecting CAN0_Tx pin to Logic Analyzer, and also connecting CAN0_Tx and CAN0_Rx together---&gt; The result is that I do not see any digital signal from Tx pin to Logic Analyzer, and Rxbuffer is also empty:<BR />below is my change:</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Voledi_0-1735194405041.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/317347i724E77AFCC493602/image-size/medium?v=v2&amp;px=400" role="button" title="Voledi_0-1735194405041.png" alt="Voledi_0-1735194405041.png" /></span></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Voledi_1-1735194446487.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/317348iD517D16990C15FFA/image-size/medium?v=v2&amp;px=400" role="button" title="Voledi_1-1735194446487.png" alt="Voledi_1-1735194446487.png" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Voledi_2-1735194484267.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/317349iF0D5A2FD964BF2DA/image-size/medium?v=v2&amp;px=400" role="button" title="Voledi_2-1735194484267.png" alt="Voledi_2-1735194484267.png" /></span></P><P>&nbsp;</P><P>please give me help, thanks</P> Thu, 26 Dec 2024 06:29:30 GMT Voledi 2024-12-26T06:29:30Z https://community.nxp.com/t5/S32K/S32K344-CAN-communication/m-p/2019558#M44598 <P>Hi NXP team,</P><P>I am trying to change FlexCAN_Ip_Example_S32K344 (in loopback mode) to work in normal mode.</P><P>In this case I do not care about Transceivers, only care about configuring CAN0_Tx, CAN0_Rx pins to work properly by connecting CAN0_Tx pin to Logic Analyzer, and also connecting CAN0_Tx and CAN0_Rx together---&gt; The result is that I do not see any digital signal from Tx pin to Logic Analyzer, and Rxbuffer is also empty:<BR />below is my change:</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Voledi_0-1735194405041.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/317347i724E77AFCC493602/image-size/medium?v=v2&amp;px=400" role="button" title="Voledi_0-1735194405041.png" alt="Voledi_0-1735194405041.png" /></span></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Voledi_1-1735194446487.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/317348iD517D16990C15FFA/image-size/medium?v=v2&amp;px=400" role="button" title="Voledi_1-1735194446487.png" alt="Voledi_1-1735194446487.png" /></span><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Voledi_2-1735194484267.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/317349iF0D5A2FD964BF2DA/image-size/medium?v=v2&amp;px=400" role="button" title="Voledi_2-1735194484267.png" alt="Voledi_2-1735194484267.png" /></span></P><P>&nbsp;</P><P>please give me help, thanks</P> Thu, 26 Dec 2024 06:29:30 GMT https://community.nxp.com/t5/S32K/S32K344-CAN-communication/m-p/2019558#M44598 Voledi 2024-12-26T06:29:30Z https://community.nxp.com/t5/S32K/S32K344-CAN-communication/m-p/2019967#M44621 <P><A href="mailto:Hi@Voledi" target="_blank">Hi@Voledi</A></P> <P>It's Christmas holiday recently, so the reply is a bit slow.<BR />You can try adding the following pins, and then directly measure the PTA7 pin of MCU</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Senlent_0-1735287074548.png" style="width: 735px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/317482i6FED1F784AF2FE20/image-dimensions/735x590?v=v2" width="735" height="590" role="button" title="Senlent_0-1735287074548.png" alt="Senlent_0-1735287074548.png" /></span></P> <P>&nbsp;</P> Fri, 27 Dec 2024 08:12:47 GMT https://community.nxp.com/t5/S32K/S32K344-CAN-communication/m-p/2019967#M44621 Senlent 2024-12-27T08:12:47Z