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Disable ASFR function on ICM426xx driver #9409

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merged 1 commit into from
Oct 26, 2023

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@DzikuVx DzikuVx commented Oct 25, 2023

As in betaflight/betaflight#13132 and ArduPilot/ardupilot#25332

the ICM42688 has an "AFSR" feature (enabled by default) where it switches between a low-noise mode at angular rates below 100 deg/sec and a higher noise mode above that level. When it switches it causes the gyro to become "stuck" for between 1ms and 2ms, leading to a significant gyro bias that can under some circumstances lead to a crash of the vehicle if it is not able to switch to another IMU.

@DzikuVx DzikuVx added this to the 7.0 milestone Oct 25, 2023
@DzikuVx DzikuVx merged commit b67165e into master Oct 26, 2023
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@DzikuVx DzikuVx deleted the dzikuvx-icm426xx-disable-afsr branch October 27, 2023 13:12
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