Hi,
We tried to run DDR STRESS TESTER v2.7 with MCIMX6Q-SDB and compared *.cfg in yocto-L4.9.11-BSP and *.rvd in ProgrammingAid v2.2 then found following difference.
BSP *.cfg → Aid *.rvd
------------------------
◇0x021b0008 0x09444040 → 0x24444040 // MMDC0_MDOTC
① tAOFPD 001 → 100: 5cycles //min,max=2,8.5ns
② tAONPD 001 → 100: 5cycles //min,max=2,8.5ns
◇0x021b000c 0x555A7975 → 0x555A79A4 // MMDC0_MDCFG0
③ tFAW 00111 → 01010: 11clocks //min=37.5ns @1kPage
④ tCL 0101 → 0100: 5cycles //min,max=0.47,0.53CK
◇0x021b0010 0xFF538F64 → 0xDB530F64 // MMDC0_MDCFG1
⑤ tRCD 111 → 110: 7clocks //min=15ns @8-8-8
⑥ tRP 111 → 110: 7clocks //min=15ns @8-8-8
◇0x021b0014 0x01FF00DB → 0x01FF00DD // MMDC0_MDCFG2
⑦ tRRD 011 → 101: 6cycles //min=4CK or 7.5ns
According to the manual, those field should be fill with corresponding value in DDR3 datasheet (or JDEC JESD79-3F) .
Why those two are different? Which one is correct?
Can anyone help me?
