P-Series中的主题 Re: ddr3 bring up and initialization https://community.nxp.com/t5/P-Series/ddr3-bring-up-and-initialization/m-p/450493#M2609 <HTML><HEAD></HEAD><BODY><P>These values are really based on the SDRAM specification, you need to check the datasheet of the SDRAM you are using. For DDR3 memory SDMODE corresponds to Mode Register 0 (MR0) of the SDRAM, ESDMODE - to Mode Register 1 (MR1).</P><P></P><P>Regards,</P><P>Bulat</P></BODY></HTML> Mon, 30 Nov 2015 11:29:54 GMT Bulat 2015-11-30T11:29:54Z ddr3 bring up and initialization https://community.nxp.com/t5/P-Series/ddr3-bring-up-and-initialization/m-p/450492#M2608 <HTML><HEAD></HEAD><BODY><P>DDR_DDR_SDRAM_MODE -how to find this value&nbsp; to be entered to the register base on dram chip&nbsp; </P><P>1.ESDMODE</P><P>2.SDMODE</P><P></P><P>how qcvs is generating this values ?</P></BODY></HTML> Sat, 28 Nov 2015 13:38:47 GMT https://community.nxp.com/t5/P-Series/ddr3-bring-up-and-initialization/m-p/450492#M2608 jagxin 2015-11-28T13:38:47Z Re: ddr3 bring up and initialization https://community.nxp.com/t5/P-Series/ddr3-bring-up-and-initialization/m-p/450493#M2609 <HTML><HEAD></HEAD><BODY><P>These values are really based on the SDRAM specification, you need to check the datasheet of the SDRAM you are using. For DDR3 memory SDMODE corresponds to Mode Register 0 (MR0) of the SDRAM, ESDMODE - to Mode Register 1 (MR1).</P><P></P><P>Regards,</P><P>Bulat</P></BODY></HTML> Mon, 30 Nov 2015 11:29:54 GMT https://community.nxp.com/t5/P-Series/ddr3-bring-up-and-initialization/m-p/450493#M2609 Bulat 2015-11-30T11:29:54Z Re: ddr3 bring up and initialization https://community.nxp.com/t5/P-Series/ddr3-bring-up-and-initialization/m-p/450494#M2610 <HTML><HEAD></HEAD><BODY><P>dear sir thanks for your reply </P><P>i have created an rcw file for 400mhz ddr3 with p2041 i have created a tcl file with qcvs for the 667 mhz ddr3 controller it is reading and writing fine </P><P>if i need to decrease&nbsp; the the timing to 667 mhz ddr3 by changing the code word and after flashing into the flash i am facing the error of protocol plugin error ,how to fix this ?</P></BODY></HTML> Mon, 30 Nov 2015 12:47:04 GMT https://community.nxp.com/t5/P-Series/ddr3-bring-up-and-initialization/m-p/450494#M2610 jagxin 2015-11-30T12:47:04Z