HDK reflash the bootloader and image

xingxing guxingxing gu
in KL730 related discussion

I reflash HDK with bl2 while not bl2+bl31, now it can not work and can not recognize the SD card too, so i can not reflash it again.

How can i deal with this problem now, thanks.

Comments

  • xingxing guxingxing gu

    i want to use "5.3.3 SD Card Boot Image" mode in KL730_SoC_Datasheet.pdf

    i prepare sd card according to document:

    18158b6e-92e5-402a-9c81-ea64d7a3ba95.png

    but HDK report that:

    d5f2e03f-3688-4ebb-845c-dc443f0269cb.png

    seems boot rom does not recognize the SD card.

  • Maria ChenMaria Chen

    Hi Xingxing,

    For SDK v1.4.1 and above, you will also need to flash BL32 (optee_a) as well. Without it, the KL730 will not be able to boot up.

    image.png


  • xingxing guxingxing gu

    thanks, it seems ok now.

    by the way, how to copy files to HDK, for example streamer. HDK seems that it do not support USB FLASH DRIVE? and can not use scp command?

  • Maria ChenMaria Chen

    Hi Xingxing,

    I'm glad it works now. To copy files to KL730, you could use SD card, NFS server mount, and USB flash drive.

    To use USB flash drive, you will need to set your DTS to host mode. The following is the DTS for HDK, and if you'd like to use USB3.0 to mount your USB disk, you can uncomment the dr_mode = "host"; part for &usbdrd_dwc3_0:

    image.png

    Besides that, you can also try using USB2.0, as &usbdrd_dwc3_1's dr_mode is USB2.0 and its dr_mode is defaulted to host.

    Note: After copying the files, you should use the sync command to make sure everything is copied.

  • xingxing guxingxing gu

    Hi Maria,

    Can i ask more questions under this topic?

    When i try to run streamer on the HDK, it report:

    a3c4a13e-af17-4da0-bfe1-f6c6f1d4d5ef.png

    Is these any document i can refer to for compiling streamer and using it on HDK platform with newest version SDK.

    thanks.

  • xingxing guxingxing gu

    Hi Maria

    After i insmoding these three drivers:

    2458ab99-cb5d-4c66-bebd-3b7a7bba978b.png

    it reports:

    d6b4dd42-dfa8-4199-bd51-a07c512e9488.png


    thanks.

  • xingxing guxingxing gu

    Hi Maria

    After insmoding several drivers manually, now streamer and rtsps apps can run now:

    17c920c3-56b5-4169-a4a4-adb9784b7b93.png


    but when i use VLC to play it, it report errors.

    the URL i using is rtsp://ip:port

    thanks.

  • xingxing guxingxing gu

    Hi Maria

    rtsp://ip:port/live1.sdp is OK

    thanks.

  • Maria ChenMaria Chen
    edited April 1

    Hi Xingxing,

    There are some info written about streamer inside Leipzig_SDK_Examples_User_Guide.pdf, but it doesn't say the specific steps to build it.

    To build streamer, you could go to your KL730 SDK/02_APP/02_Software_Tool_Kit/SDK and run build_demo.sh. You will need to choose [1] Compile modules and apps in sdk directory before building the demo_out for streamer with [2] Build demo, and choose [2] streamer.

    Once you have your demo_out folder, you could move that to KL730 and run streamer. For more detailed information, please feel free to ask our sales representative (the person who contacted you when you purchased your KL730 HDK) and they can provide you with technical support.

    And yes, the URL for RTSP is rtsp://[your IP:port]/live1.sdp (according to Leipzig_SDK_Examples_User_Guide.pdf)

    image.png


    Update: There is a brief introduction on running streamer in KL730_EVM_Board_User_Manual.pdf:

    image.png


Sign In or Register to comment.

© Kneron, Inc.