Tool/software: Code Composer Studio
Hi Team,
My customer is using AM335x as their main platform. But these days we met one issue with the DDR3 software leveling.
During the process of the DDR3 software leveling, we need to use the ratio seeds spreadsheet to calculate the seeds values for the current DDR3 design. After measuring the length of the CK/CKn, and DQS0/DQS0n, DQS1/DQS1n, we found that the for the BYTE 0, the DDR_CK trace is longer than the DDR_DQS0 trace, while the DDR_CK trace is shorter than the DDR_DQS1 trace.
So I’m not sure whether we need to input 0 or 1 for the PHY_INVERT_CLKOUT in this datasheet.
May I know whether we need to set 0 or 1 for this situation?
A further update is that by using the 0, we can get the desired output of the DDR software leveling. However if we input 1, we cannot get the desired output, only to get all ZEROs output.
So I’d like to ask what should to do with the PHY_INVERT_CLKOUT towards this situation. Many thanks!
