AM625: DDRSS Register Config Tool issue

Ethan Tian

Part Number: AM625
Other Parts Discussed in Thread: SYSCONFIG

Hi experts

Do we have a XLS file for configuring DDRSS registers like TDA4 and AM335x EMIF tools? I want to know how the register values are converted according to the DDR parameters and what are the formulas.

Ethan

over 1 year ago

0 Ethan Tian over 1 year ago

TI__Intellectual 1281 points

If not, could you tell me DDRS_TTL_321_DATA, DDRS_PHY_120, DDRS_PHY_376, DDRS_PHY_1371, how are these values calculated?

0 Ethan Tian over 1 year ago in reply to Ethan Tian

TI__Intellectual 1281 points

Hello experts

Any update?

0 Ethan Tian over 1 year ago in reply to Ethan Tian

TI__Intellectual 1281 points

Hi experts

Question is: why those 4 registers value in SDK dts different with those in Sysconfig? Such as: in dts, DDRS_TTL_321_DATA=0x000FFF00, and in Sysconfig, DDRS_TTL_321_DATA=0x00FFFF00. What's this difference mean?

0 JJD over 1 year ago in reply to Ethan Tian

TI__Guru 68880 points

Ethan, the Reg Config tool is going through continuous improvement and thus represents the most optimal configuration. The SDK configuration was generated from an older config tool and represents the most recent DDR config at the time of release.

You can find a revision history in the README link in the sysconfig tool

Regards,

James

Processors

Processors forum

AM625: DDRSS Register Config Tool issue