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Bingo

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    Real time clock DS3231

    in Allwinner sunxi

    Posted

    Fought this for a while ..... Had weird outputs on a i2cdetect -y 0 , and a DS3231 w. eeprom

    Using This kernel :
    uname -a
    Linux opio2 4.14.18-sunxi #24 SMP Fri Feb 9 16:24:32 CET 2018 armv7l GNU/Linux

    I had to add/activate i2c0 and/or i2c1 via overlays.


    In /boot/armbianEnv.txt

    Add the below i2c0 (and i2c1 if needed) to the overlays line (or create the line if needed).

    overlays= ....... i2c0 i2c1

    /Bingo

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    Solved - OrangePI One - 1-PPS NTP Server

    in Allwinner sunxi

    Posted

    @darren

    I actually have no idea if a "own" build of ntp is required , in order to enable PPS support - On Armbian.
    But i saw that they recently released a new version , so i just build that one w. PPS support to be sure.

    Thank you for the info about the "viz" , will give it a try.

    Btw: Seems line ntpviz is a python program that's included in the git repos , no need to build anything

    Bingo

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    Solved - OrangePI One - 1-PPS NTP Server

    in Allwinner sunxi

    Posted

    @darethehair

    Nice page you have made :-)
    But i decided to go with plain ntp , and have just built ntp-4.2.8p11 w. refclocks (PPS) enabled.

    I'm actually going to use a GPSDO connected to an active 4-chan GPS-antenna splitter , connected to an outside 26dB timing antenna.
    The splitter ia already driving a Trimble Thunderbolt , and a HP Z3801A , and occationally a Motorola M12+ timing receiver that diciplines my PRS-10 Rubidium clock.



    My latest GPSDO had to be used for something else (too) , and i decided for NTP.

    The GPSDO has 10MHz and 1-PPS outputs , and i'm going to "snag a copy" of the 1-PPS pulse to feed the OPI-One board.
    The OPI board will (besides NTP) also run "Lady Heather" to dicipline the GPSDO.

    I have just installed LXDE + VNC on the OPI , in order to be able to see the LH output.

    The 10MHz out will be connected to a TAPR-1 , 6-Chan 10MHz distribution board , that will be used as an instrument "External Osc" reference.

    Right now i'm struggling w. the chassis for the various boards , but i hope to have it running within a week or two.


    Rgds
    Bingo (A certified Time-Nut ...) :-)


    Ps:

    I Love the generated Graphs , and would consider building ntpsec , just for snipping ntpviz.

    Would you mind showing your ntpwiz config file ?

    And is the only logging used for those graphs , these lines in ntp.conf ?
    # stats
    enable stats
    statistics loopstats

    0

    Solved - OrangePI One - 1-PPS NTP Server

    in Allwinner sunxi

    Posted

    Doohh ... User error - 1PPS wasn't enabled on the GPS.

    The OPIO Kernel works fine w. 1-PPS

    $ sudo ppstest /dev/pps0
    trying PPS source "/dev/pps0"
    found PPS source "/dev/pps0"
    ok, found 1 source(s), now start fetching data...
    source 0 - assert 1524154630.697340907, sequence: 6793 - clear 0.000000000, sequence: 0
    source 0 - assert 1524154631.697261112, sequence: 6794 - clear 0.000000000, sequence: 0
    source 0 - assert 1524154632.697166525, sequence: 6795 - clear 0.000000000, sequence: 0
    source 0 - assert 1524154633.697084896, sequence: 6796 - clear 0.000000000, sequence: 0
    source 0 - assert 1524154634.697017267, sequence: 6797 - clear 0.000000000, sequence: 0
    source 0 - assert 1524154635.696924515, sequence: 6798 - clear 0.000000000, sequence: 0
    source 0 - assert 1524154636.696832013, sequence: 6799 - clear 0.000000000, sequence: 0
    source 0 - assert 1524154637.696757469, sequence: 6800 - clear 0.000000000, sequence: 0

    Ps: The 1-PPS ticks are NOT from the GPS yet , it was from a STM32-Bluepill where i just whipped up a quick 1-PPS pulse

    /Bingo

    *** Original post ***

    Gents

    I would like to use a OrangePI One as a NTP Server w. 1-PPS support.

    And i'm using this "recipe" for a OPIZ
    https://forum.armbian.com/topic/4944-opi-zero-gps-ntpserver/

    But i seem to have some problems getting the 1-PPS to work on the OPIO.

    I'm not experienced in the new Linux IO setup (Those overlays) , and i could miss something there.
    I was hoping that the kernel for the OPIO had the same stuff enabled as the OPIZ (according to the url above)

    Could this be an "IO Overlay" problem ??

    Setup:

    I have downloaded the "latest Debian server image , and it runs fine.
    Armbian_5.38_Orangepione_Debian_stretch_next_4.14.14.7z

    $ uname -a
    Linux opio1 4.14.18-sunxi #24 SMP Fri Feb 9 16:24:32 CET 2018 armv7l GNU/Linux


    I have added the overlay_prefix & param_pps_pin to the below file.

    $ cat /boot/armbianEnv.txt
    verbosity=1
    logo=disabled
    console=both
    disp_mode=1920x1080p60
    overlay_prefix=sun8i-h3
    rootdev=UUID=a769471e-a787-40d3-8298-d31c195f1bb9
    rootfstype=ext4
    overlays=uart1 pps-gpio
    param_pps_pin=PA7

    usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u



    And have this output during boot:
    $ dmesg | grep pps
    [ 3.178515] pps_core: LinuxPPS API ver. 1 registered
    [ 3.178519] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti
    [ 10.787644] pps pps0: new PPS source pps@0.-1
    [ 10.787698] pps pps0: Registered IRQ 56 as PPS source


    I have connected my 1-PPS tp PA7 (OPIO pin 29) but according to the below url (ppstest) , it (OPIO) doesn't react

    I am following this one , for testing etc.
    https://ava.upuaut.net/?p=726

    sudo ppstest /dev/pps0



    I have a feeling that there is a simple soluton/explanation for this , but i'm a bit lost.

    If anyone could help out i would be gratefull


    TIA
    /Bingo

    0

    Solved - OrangePI One - wont boot on latest Debian stretch

    in Allwinner sunxi

    Posted

    Well i'll be ......

     

    The system boots fine on Debian Stretch now -_-

     

    I downloaded the image once more , and wrote it to the Sandisk SD card

    It boots fine...

     

    This has to be a USER error (me ...) ... Prob. SD writing or bad SD to micro SD adapter.

     

    Thats embarsasing.

     

    Sorry for the "Noise" , and thank you for the immediate support , and getting me to pull out the FTDI TTL  uart adapter

     

    /Bingo

    boot-ok.txt.tar.bz2

    0

    Solved - OrangePI One - wont boot on latest Debian stretch

    in Allwinner sunxi

    Posted

    Hi Guyzz

    Just got a OPI1 (H3 512MB), and was trying out the stretch image from here
    https://www.armbian.com/orange-pi-one/
    https://dl.armbian.com/orangepione/Debian_stretch_next.7z

    It won't boot
    It starts up , w. both Orange & Green leds on lan , then i can see it requests a dhcp address , and it gets one (req/offer runs many times), then nothing happens after that. Just - Green light blinks on lan , Orange is unlit.

    I tried to write (linux dd) it on 2 different SD-cards , a 8GB Intenso , and also a 16GB Sandisk - same behaviour.

    I grabbed the latest Jessie from the archive , and wrote it to the Intenso 8GB , and it booted fine w. jessie.

    I don't mind running jessie for now.

    Just wanted to inform you

    Thanx for a nice Distro for my OPI's (Zero's & One's)

    Edit: sha256sum matches , so no DL corruption

    /Bingo

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