Question of DDR3 Script Aid(i.MX6DQ)

[hyunhoshin]

There are 2 version of DDR3 Script Aid(excel file, for i.MX6DQ)

"I.MX6DQSDL DDR3 Script Aid V0.10.xlsx" and "I.MX6DQSDL DDR3 Script Aid V0.11.xlsx"

What's the difference between the two?

[joanxie]

0.11 version add note for duty cycle consideration.

[hyunhoshin]

I set the same DDR parameters in each document(I.MX6DQSDL DDR3 Script Aid V0.10.xlsx,I.MX6DQSDL DDR3 Script Aid V0.11.xlsx)

However, there are differenct value of the output as shown below.

*I.MX6DQSDL DDR3 Script Aid V0.10.xlsx
setmem /32 0x021b0008 = 0x09444040 // MMDC0_MDOTC

*I.MX6DQSDL DDR3 Script Aid V0.11.xlsx
setmem /32 0x021b0008 = 0x24444040 // MMDC0_MDOTC

I set the same DDR parameter, but I don't know why this value is different.

What is the correct value of MMDC0_MDOTC register?

[joanxie]

pls refer to the link as below, what's the difference about tAOFPD  and tAONPD, you can check your DDR's data sheet

https://community.nxp.com/thread/435651