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AM5728: DELAYMODE configuration

matusan
Guru 10235 points
Part Number: AM5728


Hello, TI Experts,

 

Our customer sent us some additional questions  from E2E thread as below;

　https://e2e.ti.com/support/arm/sitara_arm/f/791/p/571498/2095981#2095981　

 

Our understanding is as follows;

 -The PINMUX-Tool supports the register functions as below;

    - INPUTENABLE

    - PULLTYPESELECT

    - PULLUDENABLE

    - MUXMODE

 - The PINMUX-Tool don't support "DELAYMODE" configuration.

 

Question is:

  - How to configure "DELAYMODE" field ?

  - Where to get from the set value to "DELAYMODE" field?

 

We would appreciate if you tell us recommended way of configuring "DELAYMODE" field.

 

Best regards,

  • 0
    TI__Guru**** 393215 points
    Hi,

    The DELAYMODE bit field selects the Virtual Timing Mode used when the MODESELECT bit is set to 0b1. See Section 18.4.6.1.5 from the AM572x TRM Rev. H, Virtual IO Timing Modes for details
  • 0 in reply to Biser Gatchev-XID
    Guru 10235 points
    Hi,

    Thank you for your prompt replay.
    We checked TRM(SPRUHZ6H) "18.4.6.1.5 Virtual IO Timing Modes"

    And this section said,
    DELAYMODE field of each associated pad configuration register must be
    set to match the Virtual Function Mapping tables in the Data Manual.

    But we cannot find " Virtual Function Mapping tables" in Datasheet(SPRS953B).

    We would appreciate if you tell us the page of "Virtual Function Mapping tables" in Datasheet(SPRS953B).

    Best regards,
  • 0 in reply to matusan
    TI__Guru**** 161600 points
    Hi,

    You should look at Section 7.5 Virtual and Manual I/O Timing Modes; in Table 7-2. Modes Summary if you click on the peripheral you'd like to configure (they are listed in the Virtual or Manual IO Mode Name column of the table), the link will take you to the corresponding Virtual Functions Mapping table.

    Note that in pinmux tool, you only have to point the mode of operation of this pad, and the tool will configure the values. You can see them in the generated files. An important point is that these files are usable only in TI RTOS SDK, for linux, you just need to refer to that value & modify kernel source accordingly.

    Best Regards,
    Yordan
  • 0 in reply to Yordan Kovachev
    Guru 10235 points

    Hi,

    Thank you for your detailed explanation.
    I really appreciate your help.
    This information is very helpful!

    Best regards