I have a question about i.MX6 DDR3 caliblation (ddr_stress_tester_v2.40).
I'd like to calculate the actual delay of
DG_DL_ABS_OFFSET0,WL_DL_ABS_OFFSET0,RD_DL_ABS_OFFSET0 and WR_DL_ABS_OFFSET0.
So,I used ddr_stress_tester_uboot_v2.40 with our custom mx6Q board.
And,I got the following result.
ARM core speed :1GHz (1.0ns)
DDR_CLK frequency: 528MHz (1.894ns)
When I calculate the value of DG_DL_ABS_OFFSET0 etc. ,
which value should I choose out of 1GHz,528MHz or other frequency ?
According to *"i.MX 6Dual/6Quad Applications Processor Reference Manual,
Rev. 2, 06/2014"(*page 3977).
The following sentence exists.
"The delay of the delay-line would be (DG_DL_ABS_OFFSET0 / 256)* MMDC_CH0
AXI clock (fast clock)."
What is the value of "MMDC_CH0 AXI clock(fast clock) " ?
I think it is 528MHz.
Is this correct or not ?
Likewise,what is the value of "clock period" of "WL_DL_ABS_OFFSET0" ?