mjb/altos/src/drivers/ao_quadrature.c, branch 1.3.2.2

altos: Make quadrature debounce per-pin rather than per-device

2014-05-15T15:31:24+00:00

Debouncing per-pin means we don't lose transitions, which makes counting a lot more precise. Signed-off-by: Keith Packard

altos: Simplify quadrature tracking

2014-05-09T07:05:39+00:00

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

altos: Add fast-timer API. Use for quadrature and button drivers

2013-06-10T05:09:13+00:00

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

altos: Add debounce helper. Use in button and quadrature drivers for TeleLCO

2013-06-09T19:14:11+00:00

Signed-off-by: Keith Packard

altos: Test multiple quadrature devices. Export quadrature count.

2012-08-27T20:41:13+00:00

Signed-off-by: Keith Packard

altos: Add button driver and event queue

2012-08-07T05:53:52+00:00

With this, a single task can wait for any button or quadrature input device. Signed-off-by: Keith Packard

altos: Support multiple quadrature encoders.

2012-08-07T04:54:58+00:00

Signed-off-by: Keith Packard

altos: Fix up quadrature driver

2012-08-07T03:20:32+00:00

Mostly works now, should work reliably with a bit of input filtering. Signed-off-by: Keith Packard

altos: Add quadrature driver

2012-08-07T02:34:34+00:00

Signed-off-by: Keith Packard