topic Re: IMX6Q UART work with RS485 function in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/IMX6Q-UART-work-with-RS485-function/m-p/932216#M139800 <HTML><HEAD></HEAD><BODY><P>Hi li</P><P></P><P>one can check suggestions provided on</P><P><A href="https://community.nxp.com/thread/384114">[imx6] RS485 could be supported on Imx6 series ? </A>&nbsp;</P><P></P><P>Best regards<BR />igor<BR />-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Thu, 17 Oct 2019 08:29:22 GMT igorpadykov 2019-10-17T08:29:22Z IMX6Q UART work with RS485 function https://community.nxp.com/t5/i-MX-Processors/IMX6Q-UART-work-with-RS485-function/m-p/932215#M139799 <HTML><HEAD></HEAD><BODY><P>Dear sir.</P><P>&nbsp; &nbsp; we board have four uart work with RS485 (UART1 UART2 UART3 UART5)&nbsp; kernel 3.14.52</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/91576i0AB57E8822E669E3/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P></P><P>we modify the file : driver/tty/serial/imx.c&nbsp;</P><P>the uart look seem work ok when only one uart work</P><P>but more than one rs485 uart work together, will can't read data when uart A is r/w data during B is r/w data.</P><P>how to fix.</P><P></P><P></P><P><STRONG>Had Fix issue.</STRONG></P><P><STRONG>&nbsp; &nbsp;the point is tx chang to rx, must wait tx send data complete.</STRONG></P></BODY></HTML> Thu, 17 Oct 2019 07:57:25 GMT https://community.nxp.com/t5/i-MX-Processors/IMX6Q-UART-work-with-RS485-function/m-p/932215#M139799 lifusong 2019-10-17T07:57:25Z Re: IMX6Q UART work with RS485 function https://community.nxp.com/t5/i-MX-Processors/IMX6Q-UART-work-with-RS485-function/m-p/932216#M139800 <HTML><HEAD></HEAD><BODY><P>Hi li</P><P></P><P>one can check suggestions provided on</P><P><A href="https://community.nxp.com/thread/384114">[imx6] RS485 could be supported on Imx6 series ? </A>&nbsp;</P><P></P><P>Best regards<BR />igor<BR />-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Thu, 17 Oct 2019 08:29:22 GMT https://community.nxp.com/t5/i-MX-Processors/IMX6Q-UART-work-with-RS485-function/m-p/932216#M139800 igorpadykov 2019-10-17T08:29:22Z Re: IMX6Q UART work with RS485 function https://community.nxp.com/t5/i-MX-Processors/IMX6Q-UART-work-with-RS485-function/m-p/932217#M139801 <HTML><HEAD></HEAD><BODY><P>Hi sir.</P><P>&nbsp; thanks for your replay.</P><P>&nbsp; we had fix this issue.</P><P style="color: #51626f; background-color: #ffffff; border: 0px;"><STRONG style="border: 0px; font-weight: bold;">&nbsp; &nbsp;the point is tx chang to rx, must wait tx send data complete.</STRONG></P></BODY></HTML> Thu, 17 Oct 2019 09:27:45 GMT https://community.nxp.com/t5/i-MX-Processors/IMX6Q-UART-work-with-RS485-function/m-p/932217#M139801 lifusong 2019-10-17T09:27:45Z