Hi,
I'm working on a custom board with i.MX6Q and facing some problem, system hang while bootloader booting.
I use DDR Stress Test 2.20 to check DDR3 stability and failed on DQS gating calibration(log attached).
Is there any way I can debug this problem?
Thanks for any suggestion.
Best regards,
Oliver
Original Attachment has been moved to: ddr_calibration_20160628-11'39'47_SMA-IMX6CS-V0.3.log.zip
Hello,
please try to check the design, using section 1.1 (Schematic and Layout
Design Rules) of the DDR3 Porting Guide
Freescale i.MX6 DRAM Port Application Guide-DDR3
In particular, there is an Excel page named “MX6 DRAM Bus Length Check” in
“HW Design Checking List for i.Mx6”. Designer can use it for layout self-checking.
Input trace length of the design into cells in pink circle then, the bottom cell in same
column may change to red color if layout breaks the rule.
Recent design checklist may be found at
HW Design Checking List for i.MX6DQSDL
Have a great day,
Yuri
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------