Hi, I am doing the DDR3 PCB layout. From Beaglebone Black PCB file, all the lines of DDR3 are using a same length.
What I learned is Address/CMD/CLK group should use same length, DQ/DM/DQS group should use same length. The length should be matched within the group, but these two groups don't have to use same length.
I am running Starterware on Beaglebone Black without no problem. But Beaglebone Black is using one same length for all DDR3 lines, if I use different lengths for these two groups, will it cause any problem? Should I make any firmware configuration for write/read leveling or others?
Thank you.
