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AM620-Q1:Clock routing method

Naomichi Tsuzuno
Intellectual 320 points
Part Number: AM620-Q1
Other Parts Discussed in Thread: SYSCONFIG, AM620

Tool/software:

I want to input the clock generated by OSC to AUDIO_EXT_REFCLK0 and output it to another IC through AUDIO_EXT_REFCLK1.
Where in SysConfig can I configure the routing of the clock?

Code Composer Studio Ver 12.8.1
SDK: mcu_plus_sdk_am62x_10_01_00_33

Thanks Naomichi

  • 0
    Intellectual 320 points

    From the datasheet, I understood that AUDIO_EXT_REFCLK0/1 is an input/output pin to McASP.
    I also learned that the clock can be routed using the AM6X Clock Tree (1.1.4) from WebTool.
    So I tried to see if routing through McASP was possible using the Clock Tree, but the source selector “AUDIO_REFCLK1” of
    AUDIO_EXT_REFCLK1 could not select the high clock derived from AUDIO_EXT_REFCLK0.
    Is there any other way to output the input clock of AUDIO_EXT_REFCLK0 from AUDIO_EXT_REFCLK1?
    Or is it not possible for the AM620 to output the reference clock input to AUDIO_EXT_REFCLK0 from AUDIO_EXT_REFCLK1?

  • 0 in reply to Naomichi Tsuzuno
    TI__Genius 11855 points

    Hi Experts.

    I'd like to know how to configure following clock path. Could you instruct us?

    Should I use sys config tool to config this path?

    I need the advice from TI experts.

    Best regards,

    Ito

  • 0 in reply to Jun Ito(AW)
    TI__Mastermind 28255 points

    This connection is not possible.

    What is the reason that the the clock driving AUDIO_EXT_REFCLK1 cannot be routed externally to the devices connected to AUDIO_EXT_REFCLK0?

    --Paul 

  • 0 in reply to PaulM
    Intellectual 320 points

    Thanks PaulM.
    I want to give the device as much synchronized clock in series as possible with the know-how of the audio equipment.
    But I found that it is not possible to connect it, so I will look into a way to connect it externally.
    Thanks.