https://community.nxp.com/t5/i-MX-Processors/i-MX93-RPMsg-intercore-communications-question/m-p/1832545#M221563 <P>Hello! I'm working on an I. MX93 intercore communication function test encountered a problem.</P><P>&nbsp;</P><P>First of all, both the A and M cores have started up normally. The SDK used by the M core is version 2.14.2, using the demo ：rpmsg_lite_str_echo_rtos . The device tree file that A core loads is imx93-11x11-evk-rpmsg.dtb. I'm following orders from A-core, but M-core is not responding, it didn't print out"Hello World".</P><P>A Core command:</P><OL><LI># modprobe&nbsp;imx_rpmsg_tty</LI></OL><P>Then the log message of A core is : &nbsp;</P><P>[ &nbsp;&nbsp;17.843403] imx_rpmsg_tty virtio1.rpmsg-virtual-tty-channel.-1.30: new channel: 0x400 -&gt; 0x1e!</P><P>[ &nbsp;&nbsp;17.843584] Install rpmsg tty driver!</P><P>the log message of M core is:</P><P>RPMSG String Echo FreeRTOS RTOS API demo...</P><P>Nameservice sent, ready for incoming messages. . .</P><P>Please，Can you tell me what the problem is?</P> Thu, 21 Mar 2024 03:29:17 GMT adaihua13 2024-03-21T03:29:17Z https://community.nxp.com/t5/i-MX-Processors/i-MX93-RPMsg-intercore-communications-question/m-p/1832545#M221563 <P>Hello! I'm working on an I. MX93 intercore communication function test encountered a problem.</P><P>&nbsp;</P><P>First of all, both the A and M cores have started up normally. The SDK used by the M core is version 2.14.2, using the demo ：rpmsg_lite_str_echo_rtos . The device tree file that A core loads is imx93-11x11-evk-rpmsg.dtb. I'm following orders from A-core, but M-core is not responding, it didn't print out"Hello World".</P><P>A Core command:</P><OL><LI># modprobe&nbsp;imx_rpmsg_tty</LI></OL><P>Then the log message of A core is : &nbsp;</P><P>[ &nbsp;&nbsp;17.843403] imx_rpmsg_tty virtio1.rpmsg-virtual-tty-channel.-1.30: new channel: 0x400 -&gt; 0x1e!</P><P>[ &nbsp;&nbsp;17.843584] Install rpmsg tty driver!</P><P>the log message of M core is:</P><P>RPMSG String Echo FreeRTOS RTOS API demo...</P><P>Nameservice sent, ready for incoming messages. . .</P><P>Please，Can you tell me what the problem is?</P> Thu, 21 Mar 2024 03:29:17 GMT https://community.nxp.com/t5/i-MX-Processors/i-MX93-RPMsg-intercore-communications-question/m-p/1832545#M221563 adaihua13 2024-03-21T03:29:17Z https://community.nxp.com/t5/i-MX-Processors/i-MX93-RPMsg-intercore-communications-question/m-p/1833300#M221633 <P>Hi&nbsp;</P> <P>Please refer the&nbsp;i.MX Linux User's Guide:</P> <P><A href="https://www.nxp.com/docs/en/user-guide/IMX_LINUX_USERS_GUIDE.pdf" target="_blank">https://www.nxp.com/docs/en/user-guide/IMX_LINUX_USERS_GUIDE.pdf</A></P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Zhiming_Liu_0-1711069245766.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/269862i29313317B50F67DE/image-size/medium?v=v2&amp;px=400" role="button" title="Zhiming_Liu_0-1711069245766.png" alt="Zhiming_Liu_0-1711069245766.png" /></span></P> <P>&nbsp;</P> Fri, 22 Mar 2024 01:01:28 GMT https://community.nxp.com/t5/i-MX-Processors/i-MX93-RPMsg-intercore-communications-question/m-p/1833300#M221633 Zhiming_Liu 2024-03-22T01:01:28Z