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CCS/TMS320F28375D: CPU1/CPU2 processing speed setting.

gouki ono
Intellectual 320 points
Part Number: TMS320F28375D

Tool/software: Code Composer Studio

Please tell me about the processing speed setting of the core.

[environment]
-TMS320F28375D
-CCS 8.1.0.00011

A dual environment is used.
The PLL is set using InitSysPll in InitSysCtrl on CPU1.
The PLL is not changed by other processing.
      InitSysPll (XTAL_OSC, IMULT_20, FMULT_0, PLLCLK_BY_2);

In this state, use an oscilloscope to check the processing speed of CPU1 and CPU2.
It seems that CPU1 is operating at 200Mhz and CPU2 is operating at 100Mhz.

Why doesn't CPU2 run at 200MHz?

  • 0
    TI__Guru** 113855 points

    Hi,

    On this device CPU1 and CPU2 runs at same speed. There is no configuration to have separate frq for CPU2. How are you measuring CPU2 speed? Please check your method of measurement for CPU2 speed. Look like there is some issue with that.

    Regards,

    Vivek Singh

  • 0 in reply to Vivek Singh
    Intellectual 320 points
    Thank you very much.

    As a result of checking again,
    When I switched to another oscilloscope,
    I was able to confirm that it was the same speed.