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| futarisIRCcloud | "export CPU=vexriscv PLATFORM=tomu_fpga_hacker TARGET=usb_nobios" for litex-buildenv / tinyusb-work branch ? | 03:51 |
|---|---|---|
| futarisIRCcloud | mithro: "export CPU=vexriscv PLATFORM=tomu_fpga_hacker TARGET=usb_nobios" for litex-buildenv / tinyusb-work branch ? | 03:52 |
| mithro | Not quite sure... | 03:52 |
| futarisIRCcloud | xobs / mithro: third_party/litex xobs smaller-crc branch & third_party/valentyusb usb12 branch ? | 04:30 |
| mithro | futarisIRCcloud: I'm not usre what xobs' smaller-crc branch is | 04:31 |
| xobs | That was me replacing the crc functions with computed versions, which saves a kb or so of rom space. | 04:32 |
| mithro | xobs: Oh right, in the litex bios | 04:46 |
| futarisIRCcloud | https://www.irccloud.com/pastebin/aDw4tJmx/ | 04:54 |
| tpb | Title: Snippet | IRCCloud (at www.irccloud.com) | 04:54 |
| futarisIRCcloud | mithro / xobs: I must be checking out the wrong trees for some submodules. | 04:55 |
| mithro | futarisIRCcloud: You need to go into third_party/litex and add remotes for xobs or my mithro repos | 04:55 |
| futarisIRCcloud | mithro / xobs: Can you guys run a "git branch --contains 55752cdc0c6ccfd8dab0c0ec5fabeb7b684071f1" and tell me what ".git/modules/third_party/litex/config" contains? | 05:35 |
| xobs | futarisIRCcloud: I'm not at a machine right now, sorry. | 05:38 |
| mithro | xobs: Hrm? | 05:50 |
| xobs | mithro: can't run that command because I don't have a computer in front of me. At least not one with litex installed. (mobile phone) | 05:52 |
| mithro | xobs: sorry | 05:52 |
| mithro | futarisIRCcloud: hrm? | 05:52 |
| mithro | futarisIRCcloud: "cd third_party/litex; git remote add mithro git+ssh://github.com/mithro/litex.git" then try again | 05:53 |
| futarisIRCcloud | mithro: I can see the commits, on github, without logging in, but I don't think they can be pulled (without logging in). Something about the branches. | 06:45 |
| futarisIRCcloud | https://github.com/mithro/litex/commit/55752cdc0c6ccfd8dab0c0ec5fabeb7b684071f1 | 06:45 |
| futarisIRCcloud | https://github.com/mithro/migen/commit/489d69fabbe391cecb3ab38b60ed859d54b9ebfe | 06:45 |
| futarisIRCcloud | https://github.com/mithro/valentyusb/commit/48627f4128ab9d1df6c173a6a4be809209d6bf54 | 06:45 |
| futarisIRCcloud | migen branch mithro/fsm-decorator-signal-names exists. Not sure about the other two. | 06:45 |
| tpb | Title: bios: main: remove some excess text to fit it in rom · mithro/litex@55752cd · GitHub (at github.com) | 06:45 |
| tpb | Title: fhdl/tracer: skip decorator frames · mithro/migen@489d69f · GitHub (at github.com) | 06:45 |
| tpb | Title: Calculate the reset value for cur_next · mithro/valentyusb@48627f4 · GitHub (at github.com) | 06:45 |
| futarisIRCcloud | https://www.irccloud.com/pastebin/K7PTvkLS/ | 06:54 |
| tpb | Title: Snippet | IRCCloud (at www.irccloud.com) | 06:54 |
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| xobs | <freenode_mit "futarisIRCcloud: "cd third_party"> futarisIRCcloud: you can add them as remotes, just replace "git+ssh" with "https" | 07:35 |
| futarisIRCcloud | xobs: tried that earlier. something about those branches, makes them not show up. | 07:43 |
| MadHacker | From /r/nicechips, https://datasheets.maximintegrated.com/en/ds/MAX77278.pdf is nice. 3 output SMPSU/PMIC from a single inductor. | 08:52 |
| MadHacker | (for those who like that sort of thing. :)) | 08:52 |
| MadHacker | Can give you 5V, 3.3V, 1.8V from a single 3V input. | 08:54 |
| MadHacker | (or any other voltages you like, it's programmable) | 08:54 |
| xobs | That is a very nice chip, MadHacker | 08:55 |
| MadHacker | Also, STM32G-series is just out (90nm version of F-series, can run off a single power pin being one of the nice changes.) | 08:59 |
| MadHacker | Extra GPIOs in the same package - 9 in 64-pin, 7 in 48-pin. | 08:59 |
| MadHacker | Nice upgrade. | 08:59 |
| xobs | A nice feature of Fomu is that every part has at least two sources, except the FPGA. | 09:00 |
| MadHacker | That truly is a nice feature. | 09:00 |
| MadHacker | Can't do much about the FPGA; that said, I'm surprised I don't see more FPGAs available from multiple sources, since they do get used in military gear and that usually insists on second-sourcing. | 09:01 |
| MadHacker | Also a fun part, http://www.vlsi.fi/en/products/vs23s010.html - 1Mbit SPI SRAM that has a PAL/NTSC video output as well. Handy if you want a video out from something tomu-sized. :) | 09:13 |
| tpb | Title: VLSI Solution-VS23S010 - 1 Mbit Versatile SPI / 8-Bit Parallel Bus SRAM (at www.vlsi.fi) | 09:13 |
| MadHacker | Now I read, it also has a direct DAC mode, so I guess you could use it for a DDS signal generator or similar. | 09:27 |
| xobs | 2600 on a chip? | 09:28 |
| MadHacker | Certainly a 2600 on a USB-port. | 09:28 |
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