ddr3 bring up and initialization

[jagxin]

DDR_DDR_SDRAM_MODE -how to find this value  to be entered to the register base on dram chip 

1.ESDMODE

2.SDMODE

how qcvs is generating this values ?

[jagxin]

dear sir thanks for your reply

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

if i need to decrease  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 ?

[Bulat]

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).

Regards,

Bulat