08:49 <tnt> Anyone knows what the easiest/cheapest to get hardware is that supported "out of the box" by litepcie ?

08:51 <tnt> In a vaguely related question, 0d8467364fd36da6cf6da43d74832bd611f0d0f6 says 64b addressing is only supported for 64b datapath, that means the 'data_width' params on the phy ? So I guess pcie 4x wouldn't work.

10:41 <_florent_> tnt: the SQRL Acorn (CLE101/215+) or LiteFury/NiteFury are probably the cheapest way to get "out of the box" LitePCIe

10:43 <_florent_> tnt: A decklink mini 4k is also a good option: https://www.blackmagicdesign.com/fr/products/decklink/techspecs/W-DLK-32

10:43 <tpb> Title: DeckLink – Spécifications techniques | Blackmagic Design (at www.blackmagicdesign.com)

10:43 <_florent_> tnt: JTAG pins are directly on the silkscreen

10:43 <tnt> Oh yeah, the DeckLink, good call.

10:44 <tnt> The SQRL looked nice but can't find any ATM.

10:44 <_florent_> and the target is also available at: https://github.com/litex-hub/litex-boards/blob/master/litex_boards/targets/decklink_mini_4k.py

10:45 <_florent_> for Ultrascale, the Decklink Quad HDMI recorder is also interesting: https://www.blackmagicdesign.com/fr/products/decklink/techspecs/W-DLK-36

10:45 <tpb> Title: DeckLink – Spécifications techniques | Blackmagic Design (at www.blackmagicdesign.com)

10:46 <_florent_> that's a XCKU040

10:47 <tnt> I was actually looking at that because, I could possibly use it afterward for what's it intendended for :)

10:47 <_florent_> DDR3 has been also been reversed on the mini 4k and quad hdmi recorder and is working with LiteX

10:48 <tnt> Wht's the usb port for ?

10:48 <_florent_> firmware update I imagine but I haven't tried to understand how it works

10:49 <_florent_> it's probably common between all boards,

10:49 <_florent_> so documenting it for one board would enable support for all boards :)

10:51 <_florent_> tnt: BTW, the mini 4k recorder/monitor are almost the same boards. The difference is mostly on the Video side where transceivers where RX ones are used in one cases/TX in the other.

10:51 <_florent_> tnt: PCIe/DDR3/JTAG/Debug are similar

10:53 <_florent_> I'm also planning to play with them for other use cases in the future

10:53 <tnt> Too bad they didn't include muxes to dynamically switch :)

10:54 <_florent_> Could be wanted to sell more boards :)

10:54 <tnt> oh there is even a uart, how convenient.

10:55 <_florent_> That's really some nice/cheap hardware

10:55 <_florent_> and easy to find/source

10:55 <tnt> yeah, that's the main thing, being readily available.

10:57 <_florent_> one other nice things is that they generally reuse a lot between boards

10:57 <_florent_> for example, IIRC DeckLink Duo2 is similar on PCIe/DDR3 than the Mini 4k

10:58 <_florent_> and DeckLink Quad 2 is just the Duo2 duplicated

10:58 <tnt> The hdmi pairs are directly connected to GTx btw ?

13:00 <_florent_> tnt: yes, it's the case on the mini 4k and quad hdmi recorder

13:00 <_florent_> I just did a quick test last year at 1080p60 on the mini 4k: https://twitter.com/enjoy_digital/status/1389999670718603264

13:09 <tnt> _florent_: Ah nice. I saw there is a redriver in the path though.

13:09 <tnt> _florent_: btw, any comment on the 64b addressing thing above ?

13:22 <_florent_> 64-bit addressing is only supported for 64-bit datapaths

13:22 <_florent_> So PCIe Gen2 X1 or X2 on Artix7

13:23 <_florent_> that's the configuration I tested

13:24 <_florent_> I want to rework a bit the TLP Packetizer before extending to other data-width, to avoid duplicating too much code