Thursday, 2020-11-05

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_florent_mithro: :)07:27
_florent_somlo: i'm using this FMC because that's the one i used to develop LiteSATA initially a few years ago on a KC70507:28
_florent_somlo: but i also experimented with cheaper alternatives recently07:29
_florent_with a SFP2SATA adapter: https://twitter.com/enjoy_digital/status/132151330652861644907:29
_florent_90€ from trenz: https://shop.trenz-electronic.de/en/TE0424-01-SFP-2-SATA-Adapter07:30
tpbTitle: SFP 2 SATA Adapter | SFP | Product (at shop.trenz-electronic.de)07:30
_florent_but this also works by hacking a 10€ PCIe riser and SATA cable: https://twitter.com/enjoy_digital/status/132074777562627276907:31
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MelkhiorMade the 'B' support for VexRsicv a bit more configurable: https://github.com/rdolbeau/VexRiscvBPluginGenerator/ if anyone is interested :-)08:59
st-gourichon-fidMelkhior, not directly interested by B, but congrats for implementation so far and keep up the good work!10:19
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somlo_florent_: how do you build trellisboard bitstream for the `sdcard_pmod_io` option (as opposed to the built-in reader)?19:59
somloI'm experiencing a weird behavior (which I don't remember seeing with spi-mode sdcard) whereby once programmed, if I insert a sdcard into the built-in slot, the board crashes out of my terminal emulator, and locks up until reprogrammed20:01
somlodaveshah: ^^^ did you ever encounter anything similar?20:02
daveshahAdmittedly I haven't tested the SD card much20:02
daveshahbut a thicker USB cable might be advisble20:03
daveshahsounds a bit like a power issue20:03
somlohmmm, last time I tried it successfully it was plugged (using the same usb cable) into my desktop rig at the office (before covid); So, power might be a factor. I'm rebuilding using `--with-spi-sdcard` to verify if that still works; if not, that'd be further evidence that it's power-related...20:07
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daveshahI had one USB cable where the board would fail at the moment of booting Linux20:38
daveshah(not using the SD card in that case though)20:39
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somlodaveshah: when I build the bitstream with `--with-spi-sdcard` it doesn't crash no matter how many times I insert/eject the actual sdcard23:56
somlobut with `--with-sdcard` it goes bonkers every time I insert the card (after starting the bitstream)23:57
somlothat's with the built-in reader; I'm going to try the same test (spi and native) with the external pmod reader, and see what happens there23:58

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