topic Has anyone tried to emulate CEC(Consumer Electronics Control) using GPIO? in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/Has-anyone-tried-to-emulate-CEC-Consumer-Electronics-Control/m-p/319736#M14264 <HTML><HEAD></HEAD><BODY><P><SPAN lang="EN-US" style="font-size: 10.0pt;"><STRONG>About HDMI CEC</STRONG></SPAN></P><P><SPAN lang="EN-US" style="font-size: 10.0pt;">High-Definition Media Interface (HDMI) incorporates a single-wire interface called Consumer Electronics</SPAN></P><P><SPAN lang="EN-US" style="font-size: 10.0pt;">Control (CEC) in order to support 'one touch' control features in newer audio/visual systems. </SPAN></P><P></P><P><SPAN lang="EN-US" style="font-size: 10.0pt;">CEC is not a conventional bus and is not readily found on microcontrollers like the more common protocols I2C or SPI.</SPAN></P><P></P><P><SPAN style="font-size: 10.0pt; text-decoration: underline;">Currently TI is emulating this interface using GPIO.</SPAN></P><P></P><P><SPAN lang="EN-US" style="font-size: 10.0pt;"><STRONG>Has anyone tried to emulate this interface using GPIO?</STRONG></SPAN></P><P></P><P><SPAN lang="EN-US" style="font-size: 10.0pt;"><A href="http://www.ti.com/lit/an/slaa377/slaa377.pdf">http://www.ti.com/lit/an/slaa377/slaa377.pdf</A></SPAN></P><P><SPAN lang="EN-US" style="font-size: 10.0pt;"><BR /></SPAN></P><P></P><P>Regards, </P><P>Koichi</P></BODY></HTML> Mon, 14 Jul 2014 06:07:31 GMT koichimatsuo 2014-07-14T06:07:31Z Has anyone tried to emulate CEC(Consumer Electronics Control) using GPIO? https://community.nxp.com/t5/Kinetis-Microcontrollers/Has-anyone-tried-to-emulate-CEC-Consumer-Electronics-Control/m-p/319736#M14264 <HTML><HEAD></HEAD><BODY><P><SPAN lang="EN-US" style="font-size: 10.0pt;"><STRONG>About HDMI CEC</STRONG></SPAN></P><P><SPAN lang="EN-US" style="font-size: 10.0pt;">High-Definition Media Interface (HDMI) incorporates a single-wire interface called Consumer Electronics</SPAN></P><P><SPAN lang="EN-US" style="font-size: 10.0pt;">Control (CEC) in order to support 'one touch' control features in newer audio/visual systems. </SPAN></P><P></P><P><SPAN lang="EN-US" style="font-size: 10.0pt;">CEC is not a conventional bus and is not readily found on microcontrollers like the more common protocols I2C or SPI.</SPAN></P><P></P><P><SPAN style="font-size: 10.0pt; text-decoration: underline;">Currently TI is emulating this interface using GPIO.</SPAN></P><P></P><P><SPAN lang="EN-US" style="font-size: 10.0pt;"><STRONG>Has anyone tried to emulate this interface using GPIO?</STRONG></SPAN></P><P></P><P><SPAN lang="EN-US" style="font-size: 10.0pt;"><A href="http://www.ti.com/lit/an/slaa377/slaa377.pdf">http://www.ti.com/lit/an/slaa377/slaa377.pdf</A></SPAN></P><P><SPAN lang="EN-US" style="font-size: 10.0pt;"><BR /></SPAN></P><P></P><P>Regards, </P><P>Koichi</P></BODY></HTML> Mon, 14 Jul 2014 06:07:31 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Has-anyone-tried-to-emulate-CEC-Consumer-Electronics-Control/m-p/319736#M14264 koichimatsuo 2014-07-14T06:07:31Z Re: Has anyone tried to emulate CEC(Consumer Electronics Control) using GPIO? https://community.nxp.com/t5/Kinetis-Microcontrollers/Has-anyone-tried-to-emulate-CEC-Consumer-Electronics-Control/m-p/319737#M14265 <HTML><HEAD></HEAD><BODY><P>HI Koichi,</P><P>follow up will be provided in your internal post. I will close this&nbsp; one.</P></BODY></HTML> Wed, 17 Sep 2014 22:25:37 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Has-anyone-tried-to-emulate-CEC-Consumer-Electronics-Control/m-p/319737#M14265 karina_valencia 2014-09-17T22:25:37Z Re: Has anyone tried to emulate CEC(Consumer Electronics Control) using GPIO? https://community.nxp.com/t5/Kinetis-Microcontrollers/Has-anyone-tried-to-emulate-CEC-Consumer-Electronics-Control/m-p/319738#M14266 <HTML><HEAD></HEAD><BODY><P>I have a customer who also wants to control CEC line using a MCU GPIO line.&nbsp;&nbsp;&nbsp; Can I have access to the answer that was provided to <A _jive_internal="true" class="font-color-normal" data-reactid=".1okpkc3jk74.0.0.0" href="https://community.nxp.com/people/koichimatsuo">Koichi Matsuo</A>? </P></BODY></HTML> Fri, 27 May 2016 23:50:57 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Has-anyone-tried-to-emulate-CEC-Consumer-Electronics-Control/m-p/319738#M14266 chetkaufman 2016-05-27T23:50:57Z Re: Has anyone tried to emulate CEC(Consumer Electronics Control) using GPIO? https://community.nxp.com/t5/Kinetis-Microcontrollers/Has-anyone-tried-to-emulate-CEC-Consumer-Electronics-Control/m-p/319739#M14267 <HTML><HEAD></HEAD><BODY><P><A class="jx-jive-macro-user" href="https://community.nxp.com/people/michaelsteffenfae">michaelsteffenfae</A>​&nbsp; can you help Chester?</P></BODY></HTML> Mon, 30 May 2016 13:00:12 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Has-anyone-tried-to-emulate-CEC-Consumer-Electronics-Control/m-p/319739#M14267 karina_valencia 2016-05-30T13:00:12Z