we use the ref design DDR3 layout route of iMX6Q_SABRE_SDB_DESIGNFILES . but now we use four pcs 512Mb x16(1GB) DDR3 memery 。 we use the DDR stress tool to Calibration the DDR parameter and test . when we select 2GB to TEST , it test passed. and when use 3.84GB to test . it will fail each cycle.
and we use the DDR Calibration parameter to update u-boot, u-boot debug message will report 3.84GB(MAX sapce). but when run into kernal and filesystem . it will be hang. could not operate normal .
please help me to fixed this issue.
Hi yang
please check presentation describing DDR stress tool
https://community.nxp.com/docs/DOC-331528
and attached 4GB example.
Best regards
igor
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