Artiq-flash in nix enviroment for ARTIQ development

han94ros

I am setting up the ARTIQ development environment using the NIX packages as laid out in this link
https://m-labs.hk/artiq/manual-beta/developing.html

I have got to the stage of flashing the binaries into the FPGA board with a command such as
artiq_flash --srcbuild -d artiq_kasli -V <your_variant>

However when I run this I get the following error.

FileNotFoundError: [Errno 2] No such file or directory: 'artiq_kasli/ubirmingham2/gateware/top.bit'

previous to this as the instruction have stated I am setting the developmental enviroment

nix-shell -I artiqSrc=/home/roshan/artiq /home/roshan/nix-scripts/artiq-fast/shell-dev.nix

rjo

Follow the manual thoroughly. Do you want to develop your own binaries or flash the pre-built ones? If you use the pre-built binaries from a nix or conda package, don't mix that up with developing (which you would want --srcbuild -d ... etc for).

Stick to the relevant section in the manual (https://m-labs.hk/artiq/manual-beta/installing.html#writing-the-flash).

If you built your own binaries, you are in https://m-labs.hk/artiq/manual-beta/developing.html and then you will have built something in the steps preceeding the flashing step.

han94ros

Yes, I have written my own binaries. I have made changes to the eem.py file in the gateware folder and have followed the instructions in the developmental section. I should clarify I am not asking for help with building the gateware but simply how to flash it with nix. I have set the environment using the following command:

nix-shell -I artiqSrc=/home/roshan/artiq /home/roshan/nix-scripts/artiq-fast/shell-dev.nix

then run the gateware build

python -m artiq.gateware.targets.kasli

and then I run
artiq_flash --srcbuild -d artiq_kasli -V ubirmingham2

I have changed the eem.py file in this directory
which is giving me the error. There is no ubirmingham2 folder in the /artiq-kasli, Is the ubirmingham2 folder supposed to be built using the last command. I don't believe I am setting the environment and the shell-dev.nix is not configured correctly.
What do I call the variant in the case it is my own built binary, and likewise don't I have to place a name in the shell-dev.nix file? Do I need a device configuration json file

I would really appreciate your help, as this seems to be the final part I'm stuck on to run my script.

rjo

Please format your posts so that they are readable and can be replied to.

python -m artiq.gateware.targets.kasli will not generate anything for the ubirmingham2 variant. Ergo artiq_flash will not find anything. You appear to be interested in using the bare Tester variant and you built that. That should be what you need to pass to artiq_flash as well.

But this is all assuming that this is actually what you want and that overall you are on a path that will get you wherever you want to go.

han94ros

rjo Yes I figured that out yesterday, thanks anyway.