topic SD_CD Pin in i.Mx7 in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/SD-CD-Pin-in-i-Mx7/m-p/644567#M98355 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>The SD card is not detected in our board after power up. In our schematics, we have assigned the SD_CD pin to No Connect. We use the micro controller MCIMX7D7DVM10SC</P><P>But when we go in detail through the user manual its written, for embedded memory it should be tied to ground if not used. Will this cause an issue?</P><P>Kindly share your thoughts in this regard!!!!</P><P>Thanks,<BR />Regards,<BR />Meria Jacob</P></BODY></HTML> Mon, 13 Mar 2017 08:15:57 GMT meriajacob 2017-03-13T08:15:57Z SD_CD Pin in i.Mx7 https://community.nxp.com/t5/i-MX-Processors/SD-CD-Pin-in-i-Mx7/m-p/644567#M98355 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>The SD card is not detected in our board after power up. In our schematics, we have assigned the SD_CD pin to No Connect. We use the micro controller MCIMX7D7DVM10SC</P><P>But when we go in detail through the user manual its written, for embedded memory it should be tied to ground if not used. Will this cause an issue?</P><P>Kindly share your thoughts in this regard!!!!</P><P>Thanks,<BR />Regards,<BR />Meria Jacob</P></BODY></HTML> Mon, 13 Mar 2017 08:15:57 GMT https://community.nxp.com/t5/i-MX-Processors/SD-CD-Pin-in-i-Mx7/m-p/644567#M98355 meriajacob 2017-03-13T08:15:57Z Re: SD_CD Pin in i.Mx7 https://community.nxp.com/t5/i-MX-Processors/SD-CD-Pin-in-i-Mx7/m-p/644568#M98356 <HTML><HEAD></HEAD><BODY><P>Hello Meria,</P><P></P><P>Yes, this is a problem if you do not have this pin in a low level,&nbsp; it is never going to generate the proper interrupt event to detect the SD Card.&nbsp; An option can be enable the pulldown resistor internally of the PAD.&nbsp; and test.</P><P><BR />Have a great day,<BR />Jaime</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Tue, 28 Mar 2017 18:12:31 GMT https://community.nxp.com/t5/i-MX-Processors/SD-CD-Pin-in-i-Mx7/m-p/644568#M98356 jamesbone 2017-03-28T18:12:31Z