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| author | Dr. Matthew Swabey <matthew@swabey.org> | 2023-04-19 12:34:22 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-04-19 12:34:22 -0400 |
| commit | 80a7744b42aabd38eab52f845fc94a724d6676c0 (patch) | |
| tree | f45c5c9969cbd9c1b223556739323343164f219f /docs | |
| parent | c2fe37292584455e71ca6e531b9d7286d4cb56a6 (diff) | |
| download | kutter-80a7744b42aabd38eab52f845fc94a724d6676c0.tar.gz kutter-80a7744b42aabd38eab52f845fc94a724d6676c0.tar.xz kutter-80a7744b42aabd38eab52f845fc94a724d6676c0.zip | |
sensor_mpu9250: Fix or improve reliability (#6170)
Fixes common MPU-9250 accelerometer issues for RPi Linux MCU and
improves reliability on all other architectures by adjusting the MPU-*
reading algorithm to only read whole Klipper messages' worth of
data from MPU-* and eliminating many unnecessary checks of the MPU FIFO
fill-level that consumed bus bandwidth needed for data transfer. Fixes
intermittent "Lost communication with MCU 'rpi'" due to "Timer too
close" and transposed / corrupted data due to FIFO overrun/data loss
when using MPU-* accelerometers. In addition FIFO overrun checks are
performed by testing the MPU interrupt flag vs. inferring from the FIFO
fill level.
Stress tested for 13hrs with two MPU-6500 attached to one I2C bus on RPi
and one on a PR2040
Stress tested for 23hrs with two MPU-6500 attached to one I2C bus on RPi
and one on a ATmega328P (Seeduino Nano)
Signed-off-by: Matthew Swabey <matthew@swabey.org>
Diffstat (limited to 'docs')
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