topic Proper i.MX6Q MMDC register value in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/Proper-i-MX6Q-MMDC-register-value/m-p/751670#M116998 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><DIV>We tried to run DDR STRESS TESTER v2.7 with MCIMX6Q-SDB and compared *.cfg in yocto-L4.9.11-BSP and *.rvd in ProgrammingAid v2.2 then found following difference.</DIV><DIV><A _jive_internal="true" href="https://community.nxp.com/docs/DOC-105963">https://community.nxp.com/docs/DOC-105963</A></DIV><BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"><P></P>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; BSP *.cfg&nbsp; <SPAN style="color: #ff0000;">→</SPAN> Aid *.rvd<BR />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; ------------------------<BR /><STRONG>◇0x021b0008&nbsp;0x<SPAN style="color: #ff0000;">09</SPAN>444040 <SPAN style="color: #ff0000;">→</SPAN> 0x<SPAN style="color: #ff0000;">24</SPAN>444040 // MMDC0_MDOTC</STRONG><BR />&nbsp; ①&nbsp;tAOFPD&nbsp;001 <SPAN style="color: #ff0000;">→</SPAN> 100: 5cycles&nbsp;&nbsp;&nbsp;//min,max=2,8.5ns<BR />&nbsp; ②&nbsp;tAONPD&nbsp;001 <SPAN style="color: #ff0000;">→</SPAN> 100: 5cycles&nbsp;&nbsp;&nbsp;//min,max=2,8.5ns<BR /><STRONG>◇0x021b000c&nbsp;0x555A79<SPAN style="color: #ff0000;">75</SPAN> <SPAN style="color: #ff0000;">→</SPAN> 0x555A79<SPAN style="color: #ff0000;">A4</SPAN> // MMDC0_MDCFG0</STRONG><BR />&nbsp; ③&nbsp;tFAW&nbsp;00111 <SPAN style="color: #ff0000;">→</SPAN> 01010:&nbsp;11clocks&nbsp;&nbsp;//min=37.5ns @1kPage<BR />&nbsp; ④&nbsp;tCL&nbsp;0101 <SPAN style="color: #ff0000;">→</SPAN> 0100: 5cycles&nbsp;&nbsp;&nbsp;//min,max=0.47,0.53CK<BR /><STRONG>◇0x021b0010&nbsp;0x<SPAN style="color: #ff0000;">FF</SPAN>538F64 <SPAN style="color: #ff0000;">→</SPAN> 0x<SPAN style="color: #ff0000;">DB</SPAN>530F64 // MMDC0_MDCFG1</STRONG><BR />&nbsp; ⑤&nbsp;tRCD&nbsp;111 <SPAN style="color: #ff0000;">→</SPAN> 110: 7clocks&nbsp;&nbsp;&nbsp;//min=15ns @8-8-8<BR />&nbsp; ⑥&nbsp;tRP&nbsp;111 <SPAN style="color: #ff0000;">→</SPAN> 110: 7clocks&nbsp;&nbsp;&nbsp;//min=15ns @8-8-8<BR /><STRONG>◇0x021b0014&nbsp;0x01FF00D<SPAN style="color: #ff0000;">B</SPAN> <SPAN style="color: #ff0000;">→</SPAN> 0x01FF00D<SPAN style="color: #ff0000;">D</SPAN> // MMDC0_MDCFG2</STRONG><BR />&nbsp; ⑦&nbsp;tRRD&nbsp;011 <SPAN style="color: #ff0000;">→</SPAN> 101: 6cycles&nbsp;&nbsp;&nbsp;//min=4CK or 7.5ns</BLOCKQUOTE><DIV>According to the manual, those field should be fill with corresponding value in DDR3 datasheet (or JDEC JESD79-3F) .</DIV><DIV> </DIV><DIV>Why those two are different? Which one is correct?</DIV><DIV> </DIV><DIV>Can anyone help me?</DIV></BODY></HTML> Thu, 30 Nov 2017 09:13:35 GMT torus1000 2017-11-30T09:13:35Z Proper i.MX6Q MMDC register value https://community.nxp.com/t5/i-MX-Processors/Proper-i-MX6Q-MMDC-register-value/m-p/751670#M116998 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><DIV>We tried to run DDR STRESS TESTER v2.7 with MCIMX6Q-SDB and compared *.cfg in yocto-L4.9.11-BSP and *.rvd in ProgrammingAid v2.2 then found following difference.</DIV><DIV><A _jive_internal="true" href="https://community.nxp.com/docs/DOC-105963">https://community.nxp.com/docs/DOC-105963</A></DIV><BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"><P></P>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; BSP *.cfg&nbsp; <SPAN style="color: #ff0000;">→</SPAN> Aid *.rvd<BR />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; ------------------------<BR /><STRONG>◇0x021b0008&nbsp;0x<SPAN style="color: #ff0000;">09</SPAN>444040 <SPAN style="color: #ff0000;">→</SPAN> 0x<SPAN style="color: #ff0000;">24</SPAN>444040 // MMDC0_MDOTC</STRONG><BR />&nbsp; ①&nbsp;tAOFPD&nbsp;001 <SPAN style="color: #ff0000;">→</SPAN> 100: 5cycles&nbsp;&nbsp;&nbsp;//min,max=2,8.5ns<BR />&nbsp; ②&nbsp;tAONPD&nbsp;001 <SPAN style="color: #ff0000;">→</SPAN> 100: 5cycles&nbsp;&nbsp;&nbsp;//min,max=2,8.5ns<BR /><STRONG>◇0x021b000c&nbsp;0x555A79<SPAN style="color: #ff0000;">75</SPAN> <SPAN style="color: #ff0000;">→</SPAN> 0x555A79<SPAN style="color: #ff0000;">A4</SPAN> // MMDC0_MDCFG0</STRONG><BR />&nbsp; ③&nbsp;tFAW&nbsp;00111 <SPAN style="color: #ff0000;">→</SPAN> 01010:&nbsp;11clocks&nbsp;&nbsp;//min=37.5ns @1kPage<BR />&nbsp; ④&nbsp;tCL&nbsp;0101 <SPAN style="color: #ff0000;">→</SPAN> 0100: 5cycles&nbsp;&nbsp;&nbsp;//min,max=0.47,0.53CK<BR /><STRONG>◇0x021b0010&nbsp;0x<SPAN style="color: #ff0000;">FF</SPAN>538F64 <SPAN style="color: #ff0000;">→</SPAN> 0x<SPAN style="color: #ff0000;">DB</SPAN>530F64 // MMDC0_MDCFG1</STRONG><BR />&nbsp; ⑤&nbsp;tRCD&nbsp;111 <SPAN style="color: #ff0000;">→</SPAN> 110: 7clocks&nbsp;&nbsp;&nbsp;//min=15ns @8-8-8<BR />&nbsp; ⑥&nbsp;tRP&nbsp;111 <SPAN style="color: #ff0000;">→</SPAN> 110: 7clocks&nbsp;&nbsp;&nbsp;//min=15ns @8-8-8<BR /><STRONG>◇0x021b0014&nbsp;0x01FF00D<SPAN style="color: #ff0000;">B</SPAN> <SPAN style="color: #ff0000;">→</SPAN> 0x01FF00D<SPAN style="color: #ff0000;">D</SPAN> // MMDC0_MDCFG2</STRONG><BR />&nbsp; ⑦&nbsp;tRRD&nbsp;011 <SPAN style="color: #ff0000;">→</SPAN> 101: 6cycles&nbsp;&nbsp;&nbsp;//min=4CK or 7.5ns</BLOCKQUOTE><DIV>According to the manual, those field should be fill with corresponding value in DDR3 datasheet (or JDEC JESD79-3F) .</DIV><DIV> </DIV><DIV>Why those two are different? Which one is correct?</DIV><DIV> </DIV><DIV>Can anyone help me?</DIV></BODY></HTML> Thu, 30 Nov 2017 09:13:35 GMT https://community.nxp.com/t5/i-MX-Processors/Proper-i-MX6Q-MMDC-register-value/m-p/751670#M116998 torus1000 2017-11-30T09:13:35Z Re: Proper i.MX6Q MMDC register value https://community.nxp.com/t5/i-MX-Processors/Proper-i-MX6Q-MMDC-register-value/m-p/751671#M116999 <HTML><HEAD></HEAD><BODY><P>pls refer to the link as below, hope helpful for you.</P><P><A href="https://community.nxp.com/message/836218">https://community.nxp.com/message/836218</A>&nbsp;</P></BODY></HTML> Thu, 07 Dec 2017 03:08:53 GMT https://community.nxp.com/t5/i-MX-Processors/Proper-i-MX6Q-MMDC-register-value/m-p/751671#M116999 joanxie 2017-12-07T03:08:53Z