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Adam

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Posts posted by Adam


  1. hi @tooz

    Please take a look at direct capture of console tx line from tinkerboard. The logic analyser is set to decode UART at 115200bps and it decodes correctly at the beginning of the boot (see image #1) then it goes wrong (image #2) and goes back to correct (image #3)

    It looks like the UART clock if drifting away causing character and frame errors. This problem exists in all 3 tinkerboard2 units we have and with different debian images (2.0.3 and 2.0.4).

    #1 image.png

     #2 image.png  

    #3 image.png


  2. I noticed that at some point of the TinkerBoard 2 start-up, the uboot log starts getting corrupted and continue to be like that until later the kernel initialise some serial devices when it gets back to normal. Does anyone have an idea what is causing this and how to fix it? I'm running the latest Debian image Tinker_Board_2-Debian-Buster-v2.0.4-20211222 but also tried v2.0.3 with the same result.

    Set GPIO2_A4 (MASK_RELEASE) output high
    no mmc device at slot 1
    Found IDB in SDcard
    dwmmc@fe320000: 1 (SD), sdhci@fe330000: 0
    Bootdev(atags): mmc 1
    MMC1: Legacy, 50Mhz
    PartType: EFI
    boot mode: None
    Found DTB in boot part
    DTB: rk-kernel.dtb
    HASH(c): OK
    I2c0 speed: 400000Hz
    PMIC: RK8 0
    vdd_center 900000uV
    vdd_c`u_l9     uV
    vdd_log9     uV
    Model:SUSTinkerBoard2/2S
    read_bm`_header:gets`lash`artitionfail.
    load_bm`_logo424dbit_count=8width=258height=94file_size=2d4
    Rockchi`UBOOTDRMdriverversion:v1. .1
    CLK:(uboot.arml:enter816   KHz,init816   KHz,kernel N/)
    CLK:(uboot.armb:enter816   KHz,init816   KHz,kernel N/)
    a`lll816   KHz
    a`llb816   KHz
    d`ll856   KHz
    c`ll24   KHz
    g`ll8     KHz
    n`ll6     KHz
    v`ll24   KHz
    aclk_`erih`133333KHz
    hclk_`erih`66666KHz
    `clk_`erih`33333KHz
    aclk_`eril` 266666KHz
    hclk_`eril` 88888KHz
    `clk_`eril` 44444KHz
    hclk_`eril`11     KHz
    `clk_`eril`15    KHz
    Net:rk3399_gmac_set_clk:internalclockisUNIM@LEMENTED
    Noethernetfound.
    Hitkeytosto`autoboot('CTR +1'2:3
    NDROID:rebootreason:"(none)"
    **Filenotfoundcmdline.txt**
    [cmdline]do_ext2loadfail
    cmdline.txtvalid=
    **Filenotfoundconfig.txt**
    [conf]do_ext2loadfail
    config.txtvalid=
    fdtmagicnumberedfe dd
    fdtsize1 48576
    o`teea`irevision:2.
    TEEC:Waring:Couldnotfindsecurity`artition
    

     

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