• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 101 subscribers
  • Views 341 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

[DM814x / DM8127] SDIO (SD Card) signal timing control

Hayden Kim
Genius 15580 points

With DM8127, SDIO interface for SD Card accessing, is it possible to control (or change) the timing of SDIO signals?

Want to change the signal timing for testing the interface.

 

Thanks and regards,

Hayden

  • 0
    TI__Guru**** 170625 points

    Hi Hayden,

    Do you mean that you want to change/control the timing of the MMC/SD/SDIO external pins?

    I do not think this is possible, I checked the MMC/SD/SDIO registers and do not find such functionality. See also the below e2e discussions:

    http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/t/235245.aspx

    http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/717/t/285626.aspx

    http://processors.wiki.ti.com/index.php/TI81XX_PSP_04.04.00.02_Feature_Performance_Guide#MMC.2FSD_Driver

    Regards,
    Pavel