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TMS320F28388D: Access(Read) CPU 2/CM Flash Memory by CPU1

Erhan(engineerhan)
Intellectual 505 points
Part Number: TMS320F28388D

Hi all!

Lets say i run my code all from flash memory for cpu1, cpu2 and cm. Nothing is running from ram. What I want to do is reach to cpu2/cm flash memories by cpu1 to check crc of this memories before boot them.

So, first cpu 1 will start and it will check crc of the flash(application code) memories of cpu2 and cm. If crc is ok then it will boot the cpu2 or cm. 

Is it possible? Can cpu 1 read the flash memories of cpu2 and cm? Is there any way?

What i got from the datasheet is that it doesnt look possible but i wanted be sure. 

Thanks in advance.

cheers,

  • +1
    TI__Genius 15385 points

    Hi Erhan,

    Yes, your understanding is correct. You cannot read CPU2 and CM flash memory from CPU1. You can bring out CPU2 out of reset and use VCRC to validate CPU2 flash memory but not through CPU1.

    Best Regards,

    Nirav