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8a86e4bcbad06c9eebca2b8a292108127fadc510
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Author SHA1 Message Date
Tobias Diedrich 8a86e4bcba Add FN key location to matrix 2022-01-13 22:14:07 +01:00
Tobias Diedrich 0da158bf01 Add rudimentary key matrix scanning 2022-01-11 17:38:55 +01:00
Tobias Diedrich df120a1c1c Implement USB basics 
This now manages to get detected as an HID keyboard by Linux, but does
not yet implement any keyboard scanning logic.
 2022-01-10 20:56:08 +01:00
Tobias Diedrich a62584b7a8 Add tentative USB descriptors 2021-12-21 11:54:02 +01:00
Tobias Diedrich afc59d5d75 Add dispatch table helpers and test 2021-12-20 21:44:38 +01:00
Tobias Diedrich 0bf18ebf6f Initial version 
Tested:
- UART debug output works at 115200 baud (pad S15)
- Jumps to bootloader on watchdog timeout
- Jumps to bootloader when Return is held while plugging in USB
- Jumps to bootloader when UTX/URX lines are shorted
- Measured max GPIO toggling speed is 3MHz
 2021-12-19 16:28:26 +01:00
ranma 8378645f00 Initial commit 2021-12-19 16:21:56 +01:00