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path: root/src/stm/ao_fast_timer.c
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* Switch from GPLv2 to GPLv2+Keith Packard2016-07-12
| | | | Signed-off-by: Keith Packard <keithp@keithp.com>
* altos: Simplify quadrature trackingKeith Packard2014-05-09
| | | | | | | | | | | | Set the timer to 200Hz for a 5ms debounce interval. Then, simply look for transitions ending in both bits in the encoder being off, which indicates the the encoder is resting in a detent. If bit '2' is turning off, the encoder was rotated clockwise, otherwise the encoder was rotated counter clockwise. This is a lot more reliable, although still not perfect. Signed-off-by: Keith Packard <keithp@keithp.com>
* altos: Add fast-timer API. Use for quadrature and button driversKeith Packard2013-06-09
This splits the fast-timer portion out of the debounce helper code and shares that with the quadrature driver which now uses it directly. Signed-off-by: Keith Packard <keithp@keithp.com>