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Linux/TDA2: DDR memory partition

user3378603
Intellectual 1000 points
Part Number: TDA2


Tool/software: Linux

Is there a recommendation for address division between the two channels of EMIF1 and EMIF2?

When using two-channel DDR, can the software be designed to run the system only in the DDR of the EMIF1 channel?

  • 0
    TI__Mastermind 39290 points

    Hi,

    If possible for your application, the recommendation is to interleave the two EMIFs to improve bandwidth . Please see section 18 of the following application note for more details: www.ti.com/.../SPRAC21

    However, you can partition the memory such that the lower half (or upper half) of memory is all on EMIF1 or EMIF2. The application note mentioned above should give an example of how to set the EMIFs in interleaved or non-interleaved modes. If you have additional questions related to this, please let us know.

    Best regards,
    Kevin