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| lkcl | _florent_, something like this? | 11:40 |
|---|---|---|
| lkcl | https://git.libre-soc.org/?p=pythondata-cpu-libresoc.git;a=summary | 11:40 |
| tpb | Title: git.libre-soc.org Git - pythondata-cpu-libresoc.git/summary (at git.libre-soc.org) | 11:40 |
| lkcl | i based it on vexrisc principle due to the massive source code size (130,000 lines of nmigen across multiple repositories) | 11:45 |
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| lkcl | we use JTAG TAP (by Chips4Makers) in Libre-SOC, and it's very handy to connect to a running simulation using jtagremote | 18:32 |
| lkcl | this is a patch which enables jtagremote, and adds a new option --with-jtagremote to the litex sim.py | 18:33 |
| lkcl | https://ftp.libre-soc.org/litex-sim-jtagremote.patch | 18:33 |
| chmouss | I'm trying to get etherbone to work on the Versa5G (lattice_versa_ecp5.py --with-etherbone --build). So far, the ping is OK, but litex_server can't connect. | 18:51 |
| chmouss | Anyone had etherbone working on this board? | 18:52 |
| lkcl | chmouss: https://github.com/enjoy-digital/litex/blob/master/litex/tools/litex_server.py | 19:10 |
| lkcl | that looks like quite a lot of options. | 19:10 |
| lkcl | what options did you give? | 19:11 |
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| chmouss | lkcl: basically litex_server --udp | 19:49 |
| chmouss | I also gave the --udp-scan option a shot (did not find any etherbone); and also wishbone-toola shot: no luck | 19:50 |
| lkcl | chmouss, can i recommend running tcpdump (or wireshark)? | 19:51 |
| lkcl | see what's actually going on, whether there's traffic in/out | 19:52 |
| _florent_ | chmouss: Hi, IIRC I tested it recently on the Versa ECP5, but could do another test tomorrow | 19:52 |
| _florent_ | chmouss: Are you using up to date LiteX? | 19:52 |
| _florent_ | chmouss: can you check you are using a version after https://github.com/enjoy-digital/litex/commit/5af8e5c9345053763f6d89764790a7fc8793b8bf#diff-4e0251b978de9f85f279e2d5756bcf337447d4f18b4e6b02d77f94e1a709cb38? | 19:55 |
| _florent_ | chmouss: before this, the UDP/IP core was not running in the right clock domain due to a regression and required a sys_clk >= 125MHz | 19:56 |
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| chmouss | _florent_: I tried both the 2020.12 and master revisions; I can see that the timings are muich harder to close on master but same behaviour for either revisions | 20:00 |
| chmouss | I'm using trellis though, not sure if it could have an impact | 20:00 |
| _florent_ | chmouss: OK, I'll do a test tomorrow | 20:00 |
| chmouss | bty, I also had the same behaviour with a RMII 100Mbps PHY, ping OK pour etherbone don't respond | 20:01 |
| chmouss | I can send you the wireshark traces if you wish | 20:01 |
| _florent_ | chmouss: I'll first do a test and will share the bistream with you if working on my side. | 20:07 |
| chmouss | thanks! | 20:18 |
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