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| ssk1328 | mithro, _florent_ I figured out solution to my problem | 00:49 |
|---|---|---|
| ssk1328 | There are four other Signals, ack, stb, sop and eop which I need to connect mannually of I am not using Record.connect() | 00:51 |
| ssk1328 | Something like this https://github.com/ssk1328/HDMI2USB-misoc-firmware/blob/float-arithmetic/gateware/hdmi_out/phy.py#L251 | 00:52 |
| tpb | Title: HDMI2USB-misoc-firmware/phy.py at float-arithmetic · ssk1328/HDMI2USB-misoc-firmware · GitHub (at github.com) | 00:52 |
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| mithro | ssk1328: sounds about right | 06:41 |
| ssk1328 | mithro: Any idea what the sop and eop signals stand for | 06:57 |
| ssk1328 | mithro: I figured out about stb and ack from https://migen.readthedocs.io/en/latest/dataflow.html | 06:57 |
| tpb | Title: Dataflow Migen X documentation (at migen.readthedocs.io) | 06:57 |
| mithro | Start of Packet, End of Packet | 06:57 |
| mithro | maybe? | 06:57 |
| mithro | ssk1328: When / If you figure out things - please do add documentation to the lite code and send a pull request | 06:58 |
| ssk1328 | mithro: For Record.connect() thing as well that I figured out last night? Or that was obvious enough | 06:59 |
| mithro | ssk1328: Anything! | 07:00 |
| ssk1328 | mithro: Okay | 07:00 |
| ssk1328 | mithro: Basically I am trying to find how to connect those Signals for connecting two different sources to a single sink | 07:01 |
| ssk1328 | mithro: For Stb it would be and of incoming signals, and ack will be copied directly, for sop and eop I am thinking a OR should be connect | 07:02 |
| mithro | ssk1328: I'm unsure | 07:03 |
| mithro | ssk1328: _florent_ would definitely be able to answer | 07:03 |
| ssk1328 | mithro: Okay | 07:04 |
| ssk1328 | Btw, I found this from _florent_'s documentation page 23, or find for sop, http://enjoy-digital.fr/litesata.pdf | 07:21 |
| mithro | ssk1328: Cool, sounds like that should end up in litex somewhere too? | 07:22 |
| mithro | ssk1328: So, you are working on the two input, one output version at the moment? | 07:47 |
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| ssk1328 | mithro: Yes | 07:47 |
| ssk1328 | mithro: More like two input two output version | 07:47 |
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| _florent_ | ssk1328, you have stb/ack/payload and eventually sop/eop signals in your stream | 16:50 |
| _florent_ | ssk1328: you only need to do adaption on stb/ack | 16:51 |
| _florent_ | ssk1328: and just connect the others | 16:51 |
| _florent_ | ssk1328: stb = I want to send data | 16:52 |
| _florent_ | ssk1328: ack = I'm taking the data that is presented | 16:52 |
| _florent_ | ssk1328: depending what you want to do, you have to adapt these signals | 16:52 |
| ssk1328 | _florent_: So if I am connecting two sink to one sources, with appropriate layouts, | 17:41 |
| ssk1328 | _florent_: sink.stb = source1.stb AND source2.stb | 17:42 |
| ssk1328 | And similar for sop and eop | 17:42 |
| ssk1328 | _florent_: And for source1.ack = sink.ack; source2.ack = sink.ack; The ack signal goes backwards | 17:43 |
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| _florent_ | yes, to be sure you can do: source1.ack = sink.stb & sink.ack, source2.ack = sink.stb & sink.ack | 18:06 |
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| ssk1328 | _florent_: Okay | 18:08 |
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| ssk1328 | _florent_: Btw isn't there a way to define two sinks separately for a PipelinedActor module | 18:09 |
| _florent_ | ssk1328: you have to create custom code for that I think | 18:10 |
| ssk1328 | _florent_: Okay, basically it will be equivalent to what I am doing by connecting everything manually | 18:10 |
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