topic Problems with DDR setup on i.MX6D in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/Problems-with-DDR-setup-on-i-MX6D/m-p/247538#M21855 <HTML><HEAD></HEAD><BODY><P>I am currently working on board bring-up for our custom design based on the i.MX6D.</P><P>I have tried the i.Mx6DQSDL DDR3 Script Aid [1] and got mixed results. It is needed to</P><P>select the ARM core speed. Does this mean I need to run the semi-automatic calibration</P><P>process for every ARM core speed I want to support? u-boot start with ~800 MHz but</P><P>later on the linux kernel could change the ARM core speed up to 1.2 GHz.</P><P></P><P>[1] <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-94917">https://community.freescale.com/docs/DOC-94917</A></P></BODY></HTML> Fri, 09 Aug 2013 07:54:39 GMT christiangmeine 2013-08-09T07:54:39Z Problems with DDR setup on i.MX6D https://community.nxp.com/t5/i-MX-Processors/Problems-with-DDR-setup-on-i-MX6D/m-p/247538#M21855 <HTML><HEAD></HEAD><BODY><P>I am currently working on board bring-up for our custom design based on the i.MX6D.</P><P>I have tried the i.Mx6DQSDL DDR3 Script Aid [1] and got mixed results. It is needed to</P><P>select the ARM core speed. Does this mean I need to run the semi-automatic calibration</P><P>process for every ARM core speed I want to support? u-boot start with ~800 MHz but</P><P>later on the linux kernel could change the ARM core speed up to 1.2 GHz.</P><P></P><P>[1] <A _jive_internal="true" href="https://community.nxp.com/docs/DOC-94917">https://community.freescale.com/docs/DOC-94917</A></P></BODY></HTML> Fri, 09 Aug 2013 07:54:39 GMT https://community.nxp.com/t5/i-MX-Processors/Problems-with-DDR-setup-on-i-MX6D/m-p/247538#M21855 christiangmeine 2013-08-09T07:54:39Z Re: Problems with DDR setup on i.MX6D https://community.nxp.com/t5/i-MX-Processors/Problems-with-DDR-setup-on-i-MX6D/m-p/247539#M21856 <HTML><HEAD></HEAD><BODY><P>No, calibration is not needed to be run when you change ARM core speed. What kind of mixed results do you get?</P></BODY></HTML> Mon, 12 Aug 2013 06:32:30 GMT https://community.nxp.com/t5/i-MX-Processors/Problems-with-DDR-setup-on-i-MX6D/m-p/247539#M21856 VladanJovanovic 2013-08-12T06:32:30Z Re: Problems with DDR setup on i.MX6D https://community.nxp.com/t5/i-MX-Processors/Problems-with-DDR-setup-on-i-MX6D/m-p/247540#M21857 <HTML><HEAD></HEAD><BODY><P>Chris, if your question has been answered, please click Correct Answer/Helpful Answer.</P><P>Thanks,</P><P>Yixing</P></BODY></HTML> Mon, 19 Aug 2013 07:35:49 GMT https://community.nxp.com/t5/i-MX-Processors/Problems-with-DDR-setup-on-i-MX6D/m-p/247540#M21857 YixingKong 2013-08-19T07:35:49Z Re: Problems with DDR setup on i.MX6D https://community.nxp.com/t5/i-MX-Processors/Problems-with-DDR-setup-on-i-MX6D/m-p/247541#M21858 <HTML><HEAD></HEAD><BODY><P>That is good to know. It turned out that we had some problems with our first prototype. All of them</P><P>seem to be fixed and our custom board runs quite well.</P><P></P><P>I am quite sorry the noise.</P></BODY></HTML> Thu, 29 Aug 2013 07:41:56 GMT https://community.nxp.com/t5/i-MX-Processors/Problems-with-DDR-setup-on-i-MX6D/m-p/247541#M21858 christiangmeine 2013-08-29T07:41:56Z