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| MadHacker | Obscure thought. Anyone know the NFC standards well enough to know if we could tack an NFC antenna onto a Tomu easily? I'm thinking the U2F role is more useful if it can do NFC and/or BLE, for mobile use. | 10:10 |
|---|---|---|
| MadHacker | (just a passing thought, not important) | 10:10 |
| xobs | MadHacker: I thought they were around 14 MHz, but I might be wrong and they might be at 900 MHz or so. | 10:21 |
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| xobs | 13.56. Not unreasonable | 10:24 |
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| mithro | xobs: https://github.com/YosysHQ/yosys/pull/1005/files | 16:03 |
| tpb | Title: ice40/cells_sim.v: Add support for TRIM input to SB_HFOSC by smunaut · Pull Request #1005 · YosysHQ/yosys · GitHub (at github.com) | 16:03 |
| xobs | mithro: neat. that could be interesting to get crystal-less USB. | 16:09 |
| tnt | xobs: That's what I'm trying. | 16:10 |
| tnt | xobs: actually I ran my core just fine without any trimming (i.e. default calibration). | 16:11 |
| tnt | But that was only short control transfers, didn't try any long packets. | 16:11 |
| tnt | The HFOSC trim is a bit ... 'coarse'. (1) It has a huge range. I can trim it from < 24 MHz to > 55 Mhz ... which means each step is rather coarse. | 16:12 |
| tnt | (2) it's also super conveniently non-monotonic. | 16:12 |
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| sldkfjsldkf | Hi, is there a way to see system footprint of usb, for instance how much ram is used by u2f after it is loaded? | 16:56 |
| sldkfjsldkf | *of tomu | 16:56 |
| mithro | U2F or UF2 ? | 17:11 |
| sldkfjsldkf | u2f | 17:13 |
| sldkfjsldkf | as in I have loaded the firmware and am using it from https://github.com/im-tomu/chopstx/tree/efm32/u2f | 17:14 |
| tpb | Title: chopstx/u2f at efm32 · im-tomu/chopstx · GitHub (at github.com) | 17:14 |
| sldkfjsldkf | but i am curious how to query how many system resources of tomu it is taking up | 17:15 |
| sldkfjsldkf | if that even makes sense with microcontroller | 17:15 |
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