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| tnt | Anyone knows what the easiest/cheapest to get hardware is that supported "out of the box" by litepcie ? | 08:49 |
|---|---|---|
| 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. | 08:51 |
| _florent_ | tnt: the SQRL Acorn (CLE101/215+) or LiteFury/NiteFury are probably the cheapest way to get "out of the box" LitePCIe | 10:41 |
| _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. | 10:43 |
| 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 | 10:44 |
| _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) | 10:45 |
| _florent_ | that's a XCKU040 | 10:46 |
| 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 | 10:47 |
| tnt | Wht's the usb port for ? | 10:48 |
| _florent_ | firmware update I imagine but I haven't tried to understand how it works | 10:48 |
| _florent_ | it's probably common between all boards, | 10:49 |
| _florent_ | so documenting it for one board would enable support for all boards :) | 10:49 |
| _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 | 10:51 |
| _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 :) | 10:53 |
| _florent_ | Could be wanted to sell more boards :) | 10:54 |
| tnt | oh there is even a uart, how convenient. | 10:54 |
| _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. | 10:55 |
| _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 | 10:57 |
| _florent_ | and DeckLink Quad 2 is just the Duo2 duplicated | 10:58 |
| tnt | The hdmi pairs are directly connected to GTx btw ? | 10:58 |
| _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 | 13:00 |
| 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 ? | 13:09 |
| _florent_ | 64-bit addressing is only supported for 64-bit datapaths | 13:22 |
| _florent_ | So PCIe Gen2 X1 or X2 on Artix7 | 13:22 |
| _florent_ | that's the configuration I tested | 13:23 |
| _florent_ | I want to rework a bit the TLP Packetizer before extending to other data-width, to avoid duplicating too much code | 13:24 |
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