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| xobs | vesim: congrats! | 01:40 |
|---|---|---|
| xobs | Also, use heap. I should disable sa. It's super legacy. | 01:40 |
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| landhome | hey everyone, I compiled and loaded u2f firmware on my tomu | 06:38 |
| landhome | when I try use it under chrome with github windows reports "The security key doesn't look familiar" | 06:38 |
| landhome | has this got something to do with windows 10 (1903) only working with FIDO2? | 06:42 |
| xobs | Maybe they have a whitelist of known-acceptable U2F tokens? | 06:55 |
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| xobs | Hey all, I thought I'd throw together a quick captouch test project to experiment with it. Could others please try it out and see what they get? | 07:59 |
| xobs | To use, clone https://github.com/xobs/fomu-captouchtest/ and run `python captouchtest.py` or `python captouchtest.py --board hacker`. | 08:00 |
| tpb | Title: GitHub - xobs/fomu-captouchtest: Experiments with captouch on Fomu (at github.com) | 08:00 |
| xobs | You'll need `wishbone-tool` to act as a bridge, then you can build the client under `client` to actually read back data. | 08:00 |
| xobs | It's pretty cool to see realtime captouch readings. I get ~0x30 for each of the pads when in direct contact. It's also cool to see how sensitive it is. | 08:01 |
| xobs | This'll come in handy for vesim with the U2F core. | 08:16 |
| xobs | Basically, at this point we'd need to figure out IRQ settings for the captouch, so we can treat it like a key device. I'm hoping we can get a good survey of various boards to make captouch work across all models. | 08:23 |
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| landhome | Anyone aware of the issue with U2F on tomu not working on Windows10 1903 and later? | 13:42 |
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| pizzapim | Hi, the Fomu tutorial uses the SB_RGBA_DRV primitive to control the leds. The ice40 led specifications also talk about an PWM IP to get automatic breathe and blinking. Does anybody know how I can use this IP because I can't find a primitive for it in the specifications? | 14:47 |
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| daveshah | pizzapim: It's SB_LEDDA_IP | 14:53 |
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| xobs | pizzapim: this is the register table for that IP, plus a link to the reference manual: https://workshop.fomu.im/en/latest/python.html#memory-mapped-rgb-driver | 14:57 |
| pizzapim | daveshah: Ah, I see... I was looking for PWM in the name. Thank you! | 14:59 |
| pizzapim | xobs: Thanks for that too. I'm planning on just writing Verilog code for now to get familiar. Afterwards I will look at the Python examples too. | 15:00 |
| vesim | xobs: nice :D | 15:01 |
| xobs | As far as I can tell, they assume you plug a 16-bit CPU in and use that to drive various IP blocks such as SPI, I2C, and SB_LEDDA_IP. | 15:01 |
| xobs | Since everything is 16-bit (SPRAM and DSP primarily) | 15:01 |
| vesim | i was trying to add meson build system to tinyusb but... damn that dependency hell in that project is insane | 15:02 |
| xobs | vesim: dependencies? You shouldn't need any dependencies in tinyusb. | 15:02 |
| vesim | xobs: i mean the internal dependencies between headers | 15:02 |
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| vesim | i can do it "makefile style" - adding every needed C file to a global list, and after that use it in a static_library target | 15:04 |
| vesim | but that's destroying the whole point of adding meson :P | 15:04 |
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| vesim | and also "tusb_config.h" is not going to play too well with meson | 15:08 |
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| pizzapim | Ok I think I'm missing something here. I can use the wishbone to alter memory in the riscv workshop. But I don't see how the led IP is synthesized and mapped to addresses. Can I synthesize my own circuit here and manipulate it using addresses? | 16:27 |
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| vesim | xobs: any hints how to implement https://github.com/dpiegdon/verilog-buildingblocks/blob/4f19cbaf35c7f3fee21b497a8f0ca2b3bf252950/lattice_ice40/random.v in migen? :D | 16:35 |
| tpb | Title: verilog-buildingblocks/random.v at 4f19cbaf35c7f3fee21b497a8f0ca2b3bf252950 · dpiegdon/verilog-buildingblocks · GitHub (at github.com) | 16:35 |
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| vesim | or how to use it | 16:36 |
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| gurke_ | xobs: i more get like 0x20...0x25 for the captouch | 21:11 |
| gurke_ | xobs: however, interestingly, on the second pad, i only get 0x00 or 0x01 - depending if touched or not | 21:11 |
| gurke_ | xobs: i'll try a different one, but have to flash bootloader first. can i do this using dfu-util and flashing pvt-updater-v2.0.3.dfu ...? | 21:13 |
| gurke_ | xobs: btw, how sensitive are the Fomus regarding ESD? | 21:14 |
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