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ti.platforms.evm667x 's cpu speed

cheney liu
Intellectual 320 points
Other Parts Discussed in Thread: SYSBIOS

Hi,

I have a OpenMp 6678 project  build with ccsv5.I want run it in 6671 board.Can I rebuild the project without change ti.platforms.evm6678 to ti.platforms.evm6671 ? The cpu speed is 1000MHz in ti.platforms.evm6678,but 1250MHz in ti.platforms.evm6671.

Thank you.

  • 0
    TI__Mastermind 37985 points

    cheney liu,
    are you using SYS/BIOS? If yes, then there is a parameter BIOS.cpuFreq that is the only place where the clock rate from the platform is used. You can overwrite BIOS.cpuFreq so that the clock rate specified in the platform is not used at all. You can read more about this parameter in SYS/BIOS documentation, in bios6.chm file in the directory 'docs' of your SYS/BIOS installation. Navigate to the package ti.sysbios, and then to the module BIOS, and then search for cpuFreq.
    The alternative is to use the Platform Wizard and create your own platform with the right values. If there are additional differences between the platforms, other than the clock rates you'll have to use the Platform Wizard.

     

  • 0
    Intellectual 935 points

    Hi liu,

    The cpu speed is decided by PLL multiply factor * 50MHz.

    If you don`t change it. It almost can run normally.

    But you need change the platform setting with RTSC and notice the program memory map difference.

    Best Regards,

    Li

  • 0 in reply to xiang_li
    Intellectual 320 points

    Thank you for your help.

    I am using SYS/BIOS.

    I will create a new RTSC platform for my new hardware.