[ARTIQ] starter ARTIQ hardware for neutral atoms
Hi all, The strontium lab at the JQI is finalizing the computer control system for our new experiment, and I am finally revisiting ARTIQ to figure out what hardware we need. Our current experiment uses the following: * 48 digital outputs (8 are designated as triggers for other devices) * 24 analog outputs (from NI's PCI-6733 DAC cards) * several (~8?) homebuilt DDSs, which aren't phase synchronized but have profile-select control for hopping frequencies/initiating simple frequency ramps with ~ < 1ms latencies. * Point Grey / PIXIS cameras for image acquisition, currently analyzed "offline" between experimental shots * For analog ramps, the fastest update rate we currently use is 10us/sample (although that also has to do with our shitty labview control interface, which can crash if your DAC sample buffer gets too long...) * Eurocard 19" rack enclosures are already used for most of our custom electronics; we like this form factor. That all said, in the new system we would like * A few phase synchronized DDS (likely operated at 30-50MHz), eg, for fancier lattice AOM control, feed forward/feedback on narrowline clock laser, ... other * analog input * upgraded analog output to move away from NI; some channels with PDQ-esque AWG capability, although most of our analog control needs are relatively slow. * more analog/digital I/O for future expansion. Given those requirements, here's what I'm thinking to buy in the short & longer term. Since we're still building the vacuum chamber, many of the "fancy" control requirements are many months away. I was hoping to get input/feedback/suggestions as to whether this plan sounds good: * For ARTIQ core device, we would ideally jump straight to using a Kasli, but as that isn't likely to be done in the next few months, I was planning to use a KC705 as the core. * KC705 has 2x FMC headers, which would drive 1x VHDCI carrier card, providing 8x IDC for EEMs. We would buy FMC -> VHDCI adapters for this interconnect. >From 8 EEM headers, we could get: * 6x BNC EEMs -> 48 DIO * 2x EEMs for... analog IO? Initially, we could continue to use the 6733 DACs, but longer term switch to Zotino/PDQ/... It seems we will eventually want at least one Kasli expansion DRTIO module. This would be connected on the KC705 SFP. **Specific questions**: * what limitations are there (latency/bandwidth/etc) on daisy-chaining additional Kasili DRTIO modules off of the single KC705 SFP? * What IO mapping needs to be done to support KC705 as a core driving EEMs over the two FMC connectors? Is there any plan to allow the HPC connector to drive an entire VHDCI adapter on it's own (thus expanding the KC705 to drive 12 EEM modules, 1x from the HPC + 0.5x from the LPC), and is this even desirable over, say, adding a Kasli over DRTIO? * Is there an estimate on the timescale for finished Kasli? * Should I reconsider any of this approach, or does it seem reasonable? Any other suggestions/advice? Thanks in advance for the input! Neal ___ ARTIQ mailing list https://ssl.serverraum.org/lists/listinfo/artiq
Re: [ARTIQ] starter ARTIQ hardware for neutral atoms
> > > On Wednesday, March 08, 2017 06:11 AM, Neal Pisenti via ARTIQ wrote: > > * For ARTIQ core device, we would ideally jump straight to using a > > Kasli, but as that isn't likely to be done in the next few months, I was > > planning to use a KC705 as the core. > > The "EEM" DDS/synth Kasli extensions may not necessarily be ready before > Kasli. So I don't see how the KC705 helps - is it because you want more > extensions that one Kasli would support? Supporting this KC705 scheme is > more gateware development and one more configuration that needs to be > documented, packaged and maintained. Maintainance means that we need to > check regularly (preferably automatically) that it keeps working when we > modify ARTIQ and fix any bugs that pop up. It takes work. > Valid point -- my main thought with this setup is exactly what Tom articulated; the KC705 -> VHDCI is a stopgap until Metlino/Kasli development is completed. And it would allow us to start using digital IO immediately via the PCB_3U_BNC EEM, and we might spin up some in-house boards for multichannel DAC over SPI. We shouldn't need the DDS/synth modules for some time still, since all of our DDS currently exist as "slow peripherals" in the artiq sense. The other short-term alternative I see is adapting either the nist_clock or nist_qc2 builds, and making our own FMC -> ___ breakout. But piggybacking on the EEM architecture seems cleaner and more future-proof. When the Kasli is done, we would either abandon the KC705 for a Kasli as core, or (depending on the cost) plan for 1x Kasli as DRTIO connected to the KC705 SFP. That would certainly put a limit on how many things we can control, but will probably satisfy our needs in the foreseeable future. Even though the uTCA/Metlino setup will be exceedingly nice, for neutral atom experiments it is currently overkill. But whether the upfront cost of a uTCA chassis & associated hardware is worth additional development headache to exclusively use Kasli baords...? Remains to be seen. > * KC705 has 2x FMC headers, which would drive 1x VHDCI carrier card, > > providing 8x IDC for EEMs. We would buy FMC -> VHDCI adapters for this > > interconnect. > > What adapters in particular? http://www.ohwr.org/projects/fmc-vhdci? We > didn't check compatibility of any of those. > When I chatted with Joe, we looked at this one: http://www.ohwr.org/projects/fmc-dio-32chlvdsa/wiki/Wiki @Greg -- are the board files available for this? I looked on the Creotech website but couldn't find it for sale anywhere (which is odd, because I swear I saw it there before, for ~ $500). Even so, I wonder about pricing it out at MacroFab or one of these other small-turn PCB companies before spending $1k on a pair of them. Cheers, Neal ___ ARTIQ mailing list https://ssl.serverraum.org/lists/listinfo/artiq
Re: [ARTIQ] ARTIQ Digest, Vol 34, Issue 3
I was about to email out for quotes from Creotech and Technosystem for the FMC -> VHCDI boards. It sounds like Joe wants ~2x, we want 2x, and @Tom, I'm guessing you guys want at least 2x as well... that puts us in the qty 6-10 range. If we can bulk the order, that should bring the price down a little. Talking to the accounts people here, it sounds like it is "nearly impossible" to bill groups outside UMD (ie, to put 10x boards on a single PO through UMD, then re-arrange monies afterwards), but hopefully either of those companies will quote us with the assumption/promise that each group will pay for their quantity separately...? If you guys have any other ideas, let me know. Neal On Fri, Mar 10, 2017 at 8:58 AM Grzegorz Kasprowicz via ARTIQ < artiq@lists.m-labs.hk> wrote: I already received assembled 3U boards including VHDCI carrier and BNC IO. So we can test whole setup in the lab quickly. You can help us with simple HDL design for KC705 that i.e. toggles IOs or makes loopback: ttl->lvds->VHDCI-> FPGA-> VHDCI->lvds->TTL. At the moment we are so occupied with other tasks that every help is very valuable. Greg On 10 March 2017 at 14:33, Thomas Harty wrote: > It is compatible with VHDCI carrier - I used the same pinout. Thanks for confirming that. In that case, we'll have a few of these made up, and plan to use them with the KC705 + VHDCI carrier as a short-term solution. -Original Message- From: ARTIQ [mailto:artiq-boun...@lists.m-labs.hk] On Behalf Of Thomas Harty via ARTIQ Sent: Friday, March 10, 2017 12:56 PM To: artiq@lists.m-labs.hk Subject: Re: [ARTIQ] ARTIQ Digest, Vol 34, Issue 3 > ..., and we might spin up some in-house boards for multichannel DAC over SPI. FYI, the Zotino and Novogorny DAC/ADC EEMs are now funded (Oxford/Freiburg) and being designed by WUT. They should be ready in ~12weeks. We're planning to contract M-Labs to provide full support for them. The draft specifications are on the Wiki at https://github.com/m-labs/sinara/wiki feel free to comment on them if you have requests/questions. > What adapters in particular? http://www.ohwr.org/projects/fmc-vhdci? @Greg, can you confirm whether this is compatible with the VHDCI carrier? ___ ARTIQ mailing list https://ssl.serverraum.org/lists/listinfo/artiq ___ ARTIQ mailing list https://ssl.serverraum.org/lists/listinfo/artiq ___ ARTIQ mailing list https://ssl.serverraum.org/lists/listinfo/artiq
Re: [ARTIQ] Pipistrello Install Issue
It almost certainly is a path issue -- depending on how you have anaconda installed, you might need to manually prepend the conda path to your PATH variable. I'd check ~/.bashrc, or 'echo $PATH' to verify that's not the issue. Another thing to try -- if you run python from the command line and try to import artiq, does it import cleanly? On Tue, Aug 1, 2017 at 10:49 AM Joe Britton via ARTIQ wrote: > > > I've followed Chris' suggestion and artiq 2.4 is listed in my > environment's packages. > >I can find artiq_flash.py files in my file manager but these are not > able to be called. > >Would this be something to do with paths? Will > > Just now I followed Ballance's instructions. And confirm I can run > artiq_browser from the command line. I'm using Ubuntu 14.04 and Conda > 4.3.22. > > > On Fri, Jul 28, 2017 at 10:06 AM, Joe Britton > wrote: > >> Also be sure you're using ARITQ 2.x. See Release Notes. >> >> >> https://github.com/m-labs/artiq/blob/471605ec1ed951f9033472a19c04287494978d49/RELEASE_NOTES.rst >> >> On Thu, Jul 27, 2017 at 6:43 PM, Chris Ballance via ARTIQ >> wrote: >> > Hi, >> > >> > Do not try to install from source - installing the package is much >> easier. >> > >> > Following the instructions at >> > https://m-labs.hk/artiq/manual-release-2/installing.html >> > After running >> > >> > $ conda create -n artiq-main artiq-pipistrello-nist_qc1 >> > >> > (which should finish without error) >> > Then >> > >> > $ source activate artiq-main >> > >> > followed by >> > >> > $ conda list >> > >> > should show you the list of installed packages in this environment. This >> > should include artiq 2.4 - does it? >> > >> > C >> > >> > >> > On 26/07/2017 16:29, William Evans via ARTIQ wrote: >> > >> > Hello there, >> > >> > >> > >> > I have been trying to install the ARTIQ system on a pipistrello to >> trial it >> > and demonstrate it to my group at the University of Sussex. >> > >> > >> > >> > I have tried both installing from the packages and from source. >> Sébastien >> > has advised me to contact the mailing list to find some help. >> > >> > >> > >> > In my most recent attempt, I have followed the instructions in the >> manual to >> > install on a Linux VM. When trying to use the artiq_flash command I >> receive >> > the following message: >> > >> > ‘artiq_flash: command not found’ >> > >> > >> > >> > Is anyone willing to help me to understand the installation process in >> more >> > detail and figure out how to proceed? >> > >> > >> > >> > Kind regards, >> > >> > William Evans >> > >> > >> > >> > >> > >> > ___ >> > ARTIQ mailing list >> > https://ssl.serverraum.org/lists/listinfo/artiq >> > >> > >> > >> > ___ >> > ARTIQ mailing list >> > https://ssl.serverraum.org/lists/listinfo/artiq >> > >> > > ___ > ARTIQ mailing list > https://ssl.serverraum.org/lists/listinfo/artiq > ___ ARTIQ mailing list https://ssl.serverraum.org/lists/listinfo/artiq
