USAGES.md

Compile and run egos-2000-d1

The following hardware is required:

• Lichee RV module or Lichee RV dock
• USB Type-C to USB-A for power
• USB-to-TTL Serial Cable for I/O
• microSD card and microSD card adapter

Toolchain setup

Setup your working directory and name it $EGOS.

> export EGOS=/home/${USER}/egos
> cd $EGOS
> git clone https://github.com/cheofusi/egos-2000-d1.git

Compile and install the official GNU toolchain which takes about an hour. Before proceeding follow the instructions for installing packages needed to build the toolchain.

# Prepare the environment
> cd $EGOS
> mkdir rv64-egos-2000-d1
> export PATH=$PATH:$EGOS/rv64-egos-2000-d1/bin

# Compile and install the GNU toolchain
> git clone --depth 1 git@github.com:riscv-collab/riscv-gnu-toolchain.git
> cd riscv-gnu-toolchain
> ./configure --with-arch=rv64imac --with-abi=lp64 --prefix=$EGOS/rv64-egos-2000-d1
> make
......

Build and install egos-2000-d1

Plug in your SD card and make sure your the block device for you SD card corresponds to the one in the prompt when flashing !!. If it doesn't edit the first line of the Makefile apropriately (/dev/sdb by default).

> cd $EGOS/egos-2000-d1
> make clean && make
......
> make sd
-------- Flash the SD card --------
Writing D1 SRAM bootloader..
Writing Earth layer binary..
Writing disk image..
Flash complete

Run egos-2000-d1

Insert the flashed card into the board, connect the TTL end of the serial cable to the GND, TX & RX pins on the board and the USB end to a USB port on your PC. Then open up a serial console to that port using a tool like screen (screen /dev/ttyUSB1 115200) or picocom (picocom -b 115200 /dev/ttyUSB0). Now power on the board with the USB Type-C to USB-A cable