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Write Leveling register WL_SW_RESx

Question asked by Toshishisa Sugiyama on Jul 20, 2017
Latest reply on Aug 22, 2017 by Toshishisa Sugiyama

Hi, @Jan Spurek 

 

I checked DDR timing by ddr_stress_tester_v2.60.

Then I  got the result 'Success: DDR Stress test completed!!!' .  However I checked MMDCx_MPWLGCR (0x021B0808) register, its value is 0x000000C0. So,  WL_SW_RES3, WL_SW_RES2 were set 1.

 

Questions

1. Does calibration is performed only SW Write Leveling Calibration in ddr_stress_tester_v2.60 not HW callibration?

2. What does this register value mean ?

3. What timing value is specified?

 

Best Regards,

Sugiyama

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