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[OMAP5432 ES 2.0 uEVM] Connecting to UART micro sd out

Glenn Becker
Prodigy 20 points

Howdy,

I am trying to connect to the uEVM board with little luck.  I can load android and fast boot onto the eMMC, but I can's seem to boot these file systems (http://omappedia.org/wiki/Dowload_minimal-FS_Environment) from a mini-sdcard.  If I switch the DIP switches on the development board to 1010, I can get some output from the UART debug terminal, but it comes out as unreadable text.

Host machine: Linux Mint (basically Ubuntu 12.4)

Minicom connected 115200 8N1

  • 0
    TI__Genius 10545 points

    I only found next link related to the link you mention.

    http://e2e.ti.com/support/omap/f/849/p/212150/750755.aspx#750755

    but checking mentioned link it indicates Pandaboard that is OMAP4, other reason could be that your device is not using correct MLO or is not signed if required, is it a GP device?

    There are some links to OMAP5 EVM in omapedia.org

    http://omappedia.org/wiki/Release_Notes#OMAP5_sEVM_Release_Notes

    http://omappedia.org/wiki/OMAP5_SD_Card_Boot_Information

    http://omappedia.org/wiki/Omapboot

  • 0
    TI__Intellectual 1375 points

    Hi,

    The minimal FS you mentioned is definitely not meant for OMAP5, sorry. I recommend you rebuild u-boot and linux from appropriate (i.e. known to work) sources. For example:

    https://github.com/vstehle/u-boot/tree/VINCENT/5432-ES2-5 (config: omap5_evm_config)

    https://github.com/vstehle/linux/tree/VINCENT/5432-ES2-5 (config: omap2plus_defconfig)

    Also, for the switches, I am not sure about the settings you mentioned. Could you please double-check that you have:

    1:off, 2:on, 3:off, 4:on

    Best regards,

    V.

  • 0 in reply to Manuel Contreras
    Prodigy 20 points

    Yeah, it's confirmed: I need to learn to read.  Thanks for that.

    I did get the android builds running before, but was looking for linux embedded.  Thanks for this.