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Replies: 5
Views: 670
Hi:
I want to open Spread Spectrum Clocking on DRA72x, but I found that there are some notes about some related registers: Note: SSC feature is not supported.
I try to confiugre PLL_SSC_CONFIGURATION1 and PLL_SSC_CONFIGURATION2 in my linux driver, and use oscilloscope to measure PCLK, found that the PCLK do change between f-Δf to f.
I want to comfirm whether DRA72x support SSC, if it support, how can I caculate the depth of SSC.
Best Regards.
Chao.
Be sure to read the Forum Guidelines and FAQ.
In reply to Stanislav Stilyanov:
In reply to user5274607:
Chao,
Yes, SSC was not tested, therefore TI cannot guarantee it is functioning properly.
If you wish, you can find SSC registers programming in early TRM versions: vA and vB, or in DRA7xx TRMs up to vM. It is not just one simple formulae, there is some more settings to take into account.
Once again, keep in mind that TI is not responsible for SSC function and cannot give any warranties.
Regards,
Stan