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sami

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  1. Like
    sami reacted to Werner in Nanopi R4s does not bootup after power off then on   
    Probably. I assume some capacitor needs to discharge to erase some transient  memory. Probably unfixable via software.
  2. Like
    sami reacted to arox in r2s bridge mode eth0 lan0   
    As stated in the tutorial, you should assign an address to the bridge only.
     
    The bridge forward everything on data link layer and the interface of the bridge then form/extract IP packet. Otherwise you will have a hard time to manage kernel routing tables...
  3. Like
    sami reacted to Igor in repository issues (armbian buster 4.19 OS)   
    Fix your DNS settings. As you can see names are not resolving.
  4. Like
    sami reacted to Werner in repository issues (armbian buster 4.19 OS)   
    Hook up a serial console to get an idea what is happening inside after upgrade.
    Userspace and kernel package are independent. All flavors (Focal, Buster, Bullseye, Hirsute...) of each board share the very same kernel package.
     
    If you do not have a serial console and want to continue using this board you can do that or use armbian-config to freeze firmware packages. This will update userspace (so Buster) packages only.
  5. Like
    sami reacted to tparys in serial data with framing bits(Nanopi Neo Core)   
    https://www.go4b.com/usa/technical-support/product-manuals/t500-hotbus/rs485-wiring-guide.pdf
     
    485 uses differential pair as a both a send and a receive. Both pins are both input and output. There's not really an RX pin unless you convert back to 232.
     
    If you take a look at example link. You can have multiple listeners using 485 to 232 converters attached to that differential pair, and may do what you want.
  6. Like
    sami reacted to guidol in serial data with framing bits(Nanopi Neo Core)   
    you could try the socat command  which supports some raw-configuration.
     
    I use it to "copy" the stream from /dev/ttyUSB0 to /dev/ttyUSB1 for connecting 2 USB-serial devices on a armbian-SBC
     
     
     
     
     
     
     
     
     
     
     
  7. Like
    sami reacted to martinayotte in HOW TO CLONE EMMC (NANOPI NEO CORE)   
    As I said months ago, you need to execute the backup using SSH ...
     
    ssh root@<ip_board_to_be_backup> "dd if=/dev/mmcblk1" | dd of=backup_image.img bs=100M  
  8. Like
    sami reacted to Werner in check if freepbx distro iso image works on nanopi neo core   
    Moved to Common issues / peer to peer technical support
  9. Like
    sami reacted to Ali-leb in HOW TO CLONE EMMC (NANOPI NEO CORE)   
    TRYING TO CLONE EMMC FROM ONE NEO CORE INTO ANOTHER.
    I found this link below :
    https://github.com/zador-blood-stained/fel-mass-storage
     
    I still don't know if it works since i had to enter FEL MODE which i could not. maybe i am  trying in a wrong way.
     
    SO how could i get a clone EMMC of nanopi neo core (taking into consideration it might not have FEL mode)? but if it does then how to enter this mode?
    and how to run this clone on another nanopi neo core?
     
     
  10. Like
    sami reacted to Ali-leb in HOW TO CLONE EMMC (NANOPI NEO CORE)   
    this way could i save an image of the emmc on my pc ? if not then how could I? 
    and if it was saved on my desktop then could i just simply write it to the nanopi !?
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