litex-buildenv
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timvideos
Unable to locate Vivado directory or settings.
After being unable to install on archlinux 64, I have created a fresh install of ubuntu 64 16.04 LTS.
Installation goes OK (except for the utf encoding issues reported elsewhere) but fails at the final step.
I find the following paragraph confusing, it states "you will need the Xilinx Vivado WebPack..."
But further down the paragraph it states "We will not install Vivado for this guide"
To customise your own gateware you will need the Xilinx Vivado WebPACK FPGA synthesis tool installed and reachable from /opt/Xilinx. The "Webpack" version of Xilinx Vivado, which can be run with a no-cost license file, is sufficient for litex-buildenv. We will not install Vivado for this guide. Instead, let's download a prebuilt gateware image:
So when I run "make gateware-load" it always fails with:
_run_vivado(build_name, toolchain_path, source)
File "/root/litex-buildenv/third_party/litex/litex/build/xilinx/vivado.py", line 78, in _run_vivado
raise OSError("Unable to locate Vivado directory or settings.")
OSError: Unable to locate Vivado directory or settings.
real 0m2.180s
user 0m1.676s
sys 0m0.120s
Makefile:256: recipe for target 'gateware' failed
make[1]: *** [gateware] Error 1
make[1]: Leaving directory '/root/litex-buildenv'
Makefile:269: recipe for target 'build/arty_base_lm32//gateware/top.bit' failed
make: *** [build/arty_base_lm32//gateware/top.bit] Error 2
And it appears that it cannot locate the Vivado directory hence my initial question ?!
@diginfo - if you are getting this message then it means the build system is trying to build the gateware (so it can be loaded).
This likely means something has gone wrong with the earlier downloading pre-built gateware steps. Could you please try those a again and post any error you get for that.
Thanks, did not notice any errors previously, but will try again shortly.
But can you confirm whether or not I have to install the 17GB behemoth of vivado which means my hard disk is too small !!
Did not notice this failing before, but it does now !
# ./scripts/download-prebuilt.sh
Prebuilt Repository: timvideos/HDMI2USB-firmware-prebuilt
Upstream remote: origin
Upstream branch: master
Upstream git rev: 1a111fa023c97df7c9c88a60b057477a57bd63a0
Upstream git describe: v0.0.4-324-g1a111fa
Platform: arty
Target: base (default: net)
CPU: lm32 (default: lm32)
Firmare: micropython (default: firmware)
Downloading
from 'https://github.com/timvideos/HDMI2USB-firmware-prebuilt//trunk/archive/master/v0.0.4-324-g1a111fa/arty/base/lm32/'
to 'build/arty_base_lm32/'
---------------------------------------
svn: E170000: URL 'https://github.com/timvideos/HDMI2USB-firmware-prebuilt/trunk/archive/master/v0.0.4-324-g1a111fa/arty/base/lm32' doesn't exist
If you wish to modify the gateware (IE the virtual hardware inside the FPGA) then you will need to install Vivado as it is currently required for that.
If you are happy to just work on the firmware that runs on the gateware, then it won't be needed.
https://github.com/timvideos/HDMI2USB-firmware-prebuilt/tree/master/archive/master/v0.0.4-322-g3548304
seems to be the last archive, however v0.0.4-324-g1a111fa does not appear to exist !
GitHub
Prebuilt firmware for the HDMI2USB devices (such as the Numato Opsis and the Digilent Atlys board) and OS drivers. - timvideos/HDMI2USB-firmware-prebuilt
if you can let me know the correct path I will temporarily hard-code it into ./scripts/download-prebuilt.sh
Just did a complete re-install, and the error is the same:
# ./scripts/download-prebuilt.sh
Prebuilt Repository: timvideos/HDMI2USB-firmware-prebuilt
Upstream remote: origin
Upstream branch: master
Upstream git rev: 1a111fa023c97df7c9c88a60b057477a57bd63a0
Upstream git describe: v0.0.4-324-g1a111fa
Platform: arty
Target: base (default: net)
CPU: lm32 (default: lm32)
Firmare: micropython (default: firmware)
Downloading
from 'https://github.com/timvideos/HDMI2USB-firmware-prebuilt//trunk/archive/master/v0.0.4-324-g1a111fa/arty/base/lm32/'
to 'build/arty_base_lm32/'
---------------------------------------
svn: E170000: URL 'https://github.com/timvideos/HDMI2USB-firmware-prebuilt/trunk/archive/master/v0.0.4-324-g1a111fa/arty/base/lm32' doesn't exist
:~/litex-buildenv#
It looks like this version has not built yet. v0.0.4-322-g3548304 looks like the latest version.
Now the versions is built and downloads, but the next stage now fails:
./scripts/build-micropython.sh
++ realpath ../../../../third_party/micropython/ports/fupy/
+ make V=1 -C /root/litex-buildenv/third_party/micropython/ports/fupy -j1
make: Entering directory '/root/litex-buildenv/third_party/micropython/ports/fupy'
make: *** No rule to make target '/home/travis/build/timvideos/HDMI2USB-litex-firmware/third_party/litex/litex/soc/software/libbase/crt0-lm32.S', needed by '/root/litex-buildenv/build/arty_base_lm32/software/micropython/crt0-lm32.S'. Stop.
make: Leaving directory '/root/litex-buildenv/third_party/micropython/ports/fupy'
That looks like an issue in the download prebuilt script. The /home/travis/... path should have been translated to your local path.
OK, started again and have successfully completed all steps and are able to get a REPL.
But I have a few questions:
- I tried to import machine but that failed, what I/O etc are available on the device ?
- Now that upy has been uploaded, can I get a REPL using a serial terminal and when I quit out of the REPL how do I get back in again ?
If all of this is documented somewhere maybe you can point me to it :-)
The pull request at https://github.com/timvideos/litex-buildenv/pull/72 should fix the issue with the absolute paths. It will be merged shortly.
@diginfo The best place to ask the questions about actually using MicroPython is on the #timvideos IRC channel.
The MicroPython port is very much still a work in progress and we would love help improving it!