I really don't understand the wrist wake-up angles as specified in the datasheet:
.min_angle_focus - Minimum expected change in attitude angle in a 1
// second period when moving within focus position.
// Value is 2048 * cos(angle) (default: 1448 = 45 deg)
// Range is 1024 to 1774 (60 to 30 deg)
// .min_angle_nonfocus - Minimum expected change in attitude angle in a 1
// second period when moving from non-focus position
// to the focus position.
// Value is 2048 * cos(angle) (default: 1774 = 30 deg)
// Range is 1448 to 1856 (45 to 25 deg)
// .max_tilt_lr - Maximum tilt angle to the right that defines the
// focus position.
// Value is 2048 * sin(angle) (default: 1024 = 30 deg)
// Range is 700 to 1024 (20 to 30 deg)
// .max_tilt_ll - Maximum tilt angle to the left that defines the
// focus position.
// Value is 2048 * sin(angle) (default: 700 = 20 deg)
// Range is 700 to 1024 (20 to 30 deg)
// .max_tilt_pd - Maximum tilt angle to the front that defines the
// focus position.
// Value is 2048 * sin(angle) (default: 179 = 5 deg)
// Range is 0 to 179 (0 to 5 deg)
// .max_tilt_pu - Maximum tilt angle to the back that defines the
// focus position.
// Value is 2048 * sin(angle) (default: 1925 = 70 deg)
// Range is 1774 to 1978 (60 to 75 deg)
In particular, .max_tilt_pd and .max_tilt_pu. I have tried different values, but they seems to have no effect. In essence, I am trying to adjust the orientation that the sensor has to be in for the wrist wear wake-up to work. I don't think it would kill Bosch to put a picture in their datasheet - but whatever.