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| leons | On an UltraScale+ board I'm trying to support, I'm getting an error that `sys_rst` is driven by both an FDPE primitive, as well as some logic of the CRG IDELAYCTRL on latest LiteX master. | 06:22 |
|---|---|---|
| leons | ERROR: [Synth 8-2576] procedural assignment to a non-register sys_rst is not permitted | 06:22 |
| leons | these seem to be the offending pieces: https://gist.github.com/lschuermann/6f6057864c9ae41dfc280fa080f9fccd | 06:28 |
| _florent_ | leons: A specific reset sequence has to be ensured when using the IDELAYCTRL, so USIDELAYCTRL is handling the sys_rst | 06:59 |
| _florent_ | On your PLL, make sure to set with_reset=False when using an IDELAYCTRL: https://github.com/litex-hub/litex-boards/blob/master/litex_boards/targets/xilinx_kcu105.py#L46 | 07:00 |
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| leons | Thanks, that works! I tried to be clever and not just copy everything verbatim from kcu105, but it turns out that's exactly what's necessary :) | 07:14 |
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| leons | Awesome, the first board where I got the DRAM to work completely :) | 08:31 |
| leons | Does LiteEth by any chance support SGMII interfaces? I don't see it being used in litex-boards anywhere, and there seems to be a PCS implementation, though I'm not sure it applies to Xilinx FPGAs? | 08:33 |
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| OmkarBhilare[m] | https://github.com/litex-hub/wishbone-utils/runs/2580653983 | 09:56 |
| OmkarBhilare[m] | _florent_: is wishbone-utils up running? | 09:56 |
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| david-sawatzke[m | In liteeth, what's the lite_be parameter? It doesn't seem to be a simple one hot counter, afaict from mac/sram.py:231 | 13:32 |
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| _florent_ | leons: the pcs_1000basex supports SGMII but not sure I tested it personnaly on a real SGMII interface | 20:52 |
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| _florent_ | OmkarBhilare[m]: wishbone-utils should still be working yes, I don't use it that often (litex_server is more convenien for me since I'm familiar with it) but last time I tested wishbone-utils it was working and the protocol hasn't changed since | 20:54 |
| _florent_ | david-sawatzke[m: last_be indicates the last valid valid byte in the work, this is only useful for data_width > 8 | 20:55 |
| _florent_ | BTW, I'll be in vacation for three weeks, so sorry if I'm not very present | 20:59 |
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| acathla | _florent_, starting when? Now? | 21:07 |
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