Questions&Answers

Apt trouble

  • When execute apt command in debian system it may show error as follows

GPG error: http://ftp.ports.debian.org/debian-ports sid InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E852514F5DF312F6

This means built-in key expires and need updating manually, here are two ways to download key.

Copy downloaded key (usr scp or lrzsz tool) into LicheeRV board, then run following command to update key:

sudo dpkg -i debian-ports-archive-keyring_2022.02.15_all.deb

Then run sudo apt-get update to update apt.

Not work

  • Make sure you choose as what is shown below when burnning card by yourself

    Click to see burn requirement
  • We can use adb shell to communicate with computer by Tina OS
    Just connect the core board with computer for communication.

  • Debian OS only can use uart for communication with computer.

86 panel screen no display/ display wrong

Here we need use corresopnding fex file to overwrite the board-level configuration by using following command in linux system
Download fex file here https://dl.sipeed.com/shareURL/LICHEE/D1/Lichee_RV/SDK/board
Overwrite command:

sudo dd if=boot_package_XXX.fex of=/dev/sdX bs=1K seek=16400

The sdX in the command is the name of TF card in linux

If you have other trouble, consult the seller or email to support@sipeed.com for help.