antmicro/netv2

NeTV2 SoC based on LiteX

netv2's Issues

LiteX submodule URL is out of date

Submodule git URL https://git.llvm.org/git/compiler-rt/ is out of date within the LiteX git submodule.

Replication instructions:

git clone -b v4l2 [email protected]:antmicro/netv2.git
cd netv2
git submodule update --init --recursive

Generates the following errors:

fatal: repository 'https://git.llvm.org/git/compiler-rt/' not found
fatal: clone of 'https://git.llvm.org/git/compiler-rt' into submodule path 
'netv2/litex/litex/soc/software/compiler_rt' failed
Failed to clone 'litex/soc/software/compiler_rt'. Retry scheduled
Cloning into 'netv2/litex/litex/soc/software/compiler_rt'...
fatal: repository 'https://git.llvm.org/git/compiler-rt/' not found
fatal: clone of 'https://git.llvm.org/git/compiler-rt' into submodule path 'netv2/litex/litex/soc/software/compiler_rt' failed
Failed to clone 'litex/soc/software/compiler_rt' a second time, aborting
Submodule path 'migen': checked out 'b1b2b298b85a795239daad84c75be073ddc4f8bd'
Failed to recurse into submodule path 'litex'

Because of this error the following error is generated upon make gateway/build:

INFO:SoC:--------------------------------------------------------------------------------
make[1]: Entering directory 'netv2/build/software/libcompiler_rt'
make[1]: *** No rule to make target 'umodsi3.o', needed by 'libcompiler_rt.a'.  Stop.
make[1]: Leaving directory 'netv2/build/software/libcompiler_rt'

Building kernel module - IP_ADDR

This is confusing and I would say does more harm than good.
Once I set IP=locahost, login-$user and put my own key in allowed, I could get past it. but working that out (twice now) was a pain.

When I engage a new project (like this) I install a fresh OS and try to only install what is needed.

I am using a Pi to do the programming, so I need to scp the bitstream there and run things there, which I don't think is at all what this describes, leading to even more confusion.

Existing makefile targets assume that you have a separate testing Linux PC that has NeTV2 board plugged in and that it can be reached via SSH from your development PC.
...
Building and loading kernel module:

1. Setup enviroment:
    export IP_ADDR "<test PC IP address>"
    export LOGIN "<test PC ssh username>"

build dependancies

There should be documentation telling what needs to be installed in order to build.
I have worked out what is needed for Debian. This might be good enough for now as it is most of what anyone on any OS needs to know. If you want to support all equally, you might like this:
https://gitlab.freedesktop.org/CarlFK/gst-build/-/blob/master/distro-deps.sh

or here are my notes:

sudo apt install \
    build-essential virtualenv linux-headers-$(uname -r) libtinfo5 \
    software-properties-common \
    gstreamer1.0-tools gstreamer1.0-plugins-base gstreamer1.0-plugins-good \
    v4l-utils

sudo apt-add-repository --update 'deb http://ftp.debian.org/debian testing main'
sudo apt install gcc-riscv64-unknown-elf
sudo apt-add-repository --remove --update 'deb http://ftp.debian.org/debian testing main'

git clone  --branch=v4l2  --recurse-submodules https://github.com/antmicro/netv2.git

For others may want to point them to:

wget https://static.dev.sifive.com/dev-tools/riscv64-unknown-elf-gcc-8.3.0-2019.08.0-x86_64-linux-ubuntu14.tar.gz
tar xvf riscv64-unknown...
export PATH=$PATH:$PWD/riscv64-unknown-elf-gcc-8.3.0-2020.04.0-x86_64-linux-ubuntu14/bin

I haven't figured out what package is needed for
could not set property "video-sink" in element "fpsdisplaysink0" to "ximagesink"
so I removed video-sink="ximagesink" which may be just fine.

for Vavado, I would put a link to:
https://github.com/timvideos/litex-buildenv/wiki/Xilinx-Vivado