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OMAP-L138

Oliver64923
Prodigy 30 points
Other Parts Discussed in Thread: OMAP-L138, OMAPL138

Hi all,

Soon I must choose between DSP single core TMS320C674x and OMAP_L138.

With my feeling I woud used a OMAP-L138 because I can intergreted a little linux HMI. 

But my question is : inside the OMAP-L138 there is 2 core one core ARM and one DSP core. In common there are any peripherals with a SRC.

How do you do for manage the proprieties on the SCR ? 

My application have two principals communications channels with an external system one managed with DSP an other with ARM. the DSP's channel must be not interruptible and without jetter by peripherals manage by ARM.

 

I not sure this message is very clear !!!

Thank for advance

Olvier.

 

 

 

  • 0
    Prodigy 10 points

    Hi,

    I am creating ram disk as in : http://processors.wiki.ti.com/index.php/Creating_a_Root_File_System_for_Linux_on_OMAP35x

    I compiled the linux-omap kernel using (http://hawkboard.googlecode.com/files/linux-omapl1_ver1.tar.bz2), with the kernel parameters as described in the first link as above:
    make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- uImage_v2

    cp arch/arm/boot/Image_v2 /tftpboot/uImage_v2

    Then I did:
    setenv bootargs mem=88M ip=dhcp console=ttyS0,115200n8 root=/dev/ram0 rw initrd=0xc1180000,16M ramdisk_size=16384
    saveenv
    tftp c0000000 uImage_v2
    tftp c1180000 rd-ext2.bin
    bootm c0000000

    It errors:
    hawkboard.org > bootm c0000000         
    AIS U-BootLoader is already flashed
    Wrong Image Format for bootm command
    ERROR: can't get kernel image!

    any clues why?

    This from http://elinux.org/Hawkboard works fine, though, with the default ram disk on hawkboard.org:
    http://hawkboard.googlecode.com/files/linux-omapl1_ver1.tar.bz2

     make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- distclean
      make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- omapl138_hawkboard_defconfig

      make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- uImage


    Thanks & Regards,
    D.Giriprasad

     

  • 0 in reply to D.Giri Prasad
    Prodigy 30 points

    Hi,

    Sorry

    I never user OMAP a this time .

    for the moment I need only  information . of OMAP L 138

    thank

    olive