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DM8148 Clock

aska huang
Prodigy 180 points

Hi,

       If do not use the USB, HDMI and other applications, how to disable the PLL CLOCK? Because there are EMI issue,thank you

  • 0
    TI__Guru**** 170625 points

    Aska,

    Do you want to cut off (disable) the clock towards the USB and HDMI? If yes, this can be done through the PRCM registers:

    CM_DEFAULT_USB_CLKCTRL[1:0] MODULEMODE = 0x0 (disable)

    CM_DSS_HDMI_CLKCTRL[1:0] MODULEMODE = 0x0 (disable)

    If you need to disable the USB PLL and HDMI (VIDEO2) PLL, you should program the USB PLL and HDMI/VIDEO2 PLL registers.

    BR
    Pavel