Subversion Repositories riscv_vhdl

1. Create folder for Zephyr OS

        mkdir zephyr_150

        cd zephyr_150

2. Clone repository (see https://www.zephyrproject.org/downloads)

        git clone https://gerrit.zephyrproject.org/r/zephyr

        cd zephyr

        git checkout tags/v1.5.0

3. Set environment variable:

        export ZEPHYR_BASE=/zephyr_150/zephyr

4. Copy *.diff patch to $(ZEPHYR_BASE) and apply it:

        cp ../../riscv_vhdl/zephyr/v1.5.0-branch.diff .

        git apply v1.5.0-branch.diff

5. Build 'shell' example and generate ROM-image for FPGA or Simulator (GCC must be installed):

        cd samples/shell

        make ARCH=riscv64 CROSS_COMPILE=/home//gnu-toolchain-rv64d/bin/riscv64-unknown-elf- BOARD=riscv_gnss 2>&1 | tee _err.log

        elf2raw64 outdir/zephyr.elf -h -f 262144 -l 8 -o fwimage.hex

6. Copy fwimage.hex into /riscv_vhdl/rocket_soc/fw_images

Your board is now udpated with the new firmware!

INFO:

Archives with patched Zephyr OS and others *.diff files are available here:

        http://gnss-sensor.com/index.php?LinkID=15