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DM8168 evm booting.

bharatgohil
Intellectual 475 points

Hi,

I have DM8168 evm board with DDR2.

Compile uboot for DDR2 and store to microSD card with SD card socket.

Its unable to boot from it.

DIP switch as shown by diagrame to boot from SD card.

Is require SDHC card to boot the board or it can boot from microSD card with SD card socket.

  • 0
    Intellectual 610 points

    I can boot my evm from a microSD+full size SD holder.  I've seen some brands have issues though --might try a different brand.  --haven't had any issues with the san disk brand.

  • 0 in reply to dal wheeler
    Intellectual 475 points

    Hi dal,

     

    Thanks for replay.

    I am new to ti processor.My question is how can i check my hardware is  ok or not.

    I tried with SD/MMC and microSD.

     

    Reagards,

    Bharat Gohil

     

     

  • 0
    Intellectual 855 points

    Did you run the script from DM816x_C6A816x_AM389x_PSP_U-Boot.pdf (page 19) to create your SD card?

    sudo ./mksd-ti816x.sh /dev/sdd MLO u-boot.bin uImage nfs.tar.gz

    Simple copy can't be applied to MLO file, I had to use the script. Otherwise it didn't work.

    Hardware can be checked by scope . Probe SD_CLK pin. You will see clocks when CPU is trying to boot from the card.

  • 0 in reply to Robert F.
    TI__Expert 5215 points

    Bharat,

    As Robert mentioned, after installing the EZSDK (5.02 is the latest release), the most straightforward way to format your SD card is by running the setup script. You shouldn't have any problems using a microSD in a SD socket. What class / brand card are you using?

    You want to run the mksdboot.sh within the bin folder of your ezsdk install. It requires two options: device & sdk location. So something like this:

    sudo ./mksdboot.sh --device /dev/sdX --sdk ../

    Run sudo fdisk -l for X, to see what device your SD card is listed as (b,c,d..).

    Let us know if you have any further issues.

  • 0 in reply to Robert F.
    Intellectual 475 points

    Hi Robert,

    As you told me about SD_CLK.

    I checked that ping but there is no clock out and SD_POW also low.

    I think hardware not working so i will send back to ti.

    Regards,

    Bharat Gohil