g945643frankie d23b2df7c1 AP_InertialSensor: fix ICM-56686 IREG offsets and FIFO_CONFIG2
Follow-up to #33991. The ICM-56686 shares the ICM-456xy user-bank
layout (+4) but not the IREG SRC map. DS-000563 v1.1 places
GYRO_SRC_CTRL at IPREG_SYS1+0x9A (bits 3:2) and ACCEL_SRC_CTRL at
IPREG_SYS2+0x6D (bits 1:0); the 456xy 0xA6/0x7B writes left AAF at
reset.

FIFO_CONFIG2 reserved bits must keep reset 0x20 or checked-register
monitoring marks the IMU unhealthy. PWR_MGMT_AUX1 0x3 enables AUX1
on this part. SREG_CTRL only needs the endian bit cleared so 20-bit
FIFO_HIRES packets remain valid. Soft reset restores SPI pad
overrides. Do not poke 456xy-only IREG (STC, AUX_OVRD) on 56686.
2026-09-15 11:11:00 +10:00
2026-09-12 19:46:43 -03:00
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2026-09-02 12:32:52 +09:00
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ArduPilot is the most advanced, full-featured, and reliable open source autopilot software available. It has been under development since 2010 by a diverse team of professional engineers, computer scientists, and community contributors. Our autopilot software is capable of controlling almost any vehicle system imaginable, from conventional airplanes, quad planes, multi-rotors, and helicopters to rovers, boats, balance bots, and even submarines. It is continually being expanded to provide support for new emerging vehicle types.

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