diff options
Diffstat (limited to 'src/drivers/lsm303d')
| -rw-r--r-- | src/drivers/lsm303d/lsm303d.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/drivers/lsm303d/lsm303d.cpp b/src/drivers/lsm303d/lsm303d.cpp index a38524c22..701947b98 100644 --- a/src/drivers/lsm303d/lsm303d.cpp +++ b/src/drivers/lsm303d/lsm303d.cpp @@ -631,7 +631,12 @@ LSM303D::reset() accel_set_range(LSM303D_ACCEL_DEFAULT_RANGE_G); accel_set_samplerate(LSM303D_ACCEL_DEFAULT_RATE); accel_set_driver_lowpass_filter((float)LSM303D_ACCEL_DEFAULT_RATE, (float)LSM303D_ACCEL_DEFAULT_DRIVER_FILTER_FREQ); - accel_set_onchip_lowpass_filter_bandwidth(0); // this gives 773Hz + + // we setup the anti-alias on-chip filter as 50Hz. We believe + // this operates in the analog domain, and is critical for + // anti-aliasing. The 2 pole software filter is designed to + // operate in conjunction with this on-chip filter + accel_set_onchip_lowpass_filter_bandwidth(LSM303D_ACCEL_DEFAULT_ONCHIP_FILTER_FREQ); mag_set_range(LSM303D_MAG_DEFAULT_RANGE_GA); mag_set_samplerate(LSM303D_MAG_DEFAULT_RATE); |