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C672x ROM image not compatible DSP/BIOS 5.31?

Gaston Schelotto
Expert 2870 points


Hello,

I've installed CCS 3.3 and performed the last upgrade from TI web (v3.3.82.13)

Later, I noticed my DSP/BIOS version is 5.31 and went into  to DSP/BIOS™ Product Releases

Next, I not understand the red coments that say this DSP/BIOS version is Not compatible with C672x ROM image.

In fact I'm developing code with C6727

Do I have a problem with this? What kind?

Should I do a downgrade to DSP/BIOS 5.20. How?

 

Regards,

Gaston

  • 0
    TI__Mastermind 24340 points

    The DSP/BIOS that is inside the internal ROM of C6727 is compatible with the version 5.20. But you do not need necessarily to use the DSP/BIOS in the ROM (you would use the on inside the ROM to save you some memory space).

    From document SPRAAS8:

    "At this point, ROM contents are not used for BIOS yet; potentially any BIOS version later than 5.20 can be used for the application. This is also true if the end user does not plan to use any ROM based parts of BIOS at a later stage. Nonetheless, it is recommended to use the latest version of BIOS 5.20 (as done in this example - 5.20.05 at the time of writing) since the ROM contents included in the DSP are being created and are compatible only with this release tree (5.20.0x). Any successive release, like 5.31.x, can not be used if linking of ROM BIOS contents is desired."