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Document altitude axis hardware lock after limit hit

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The DWARF II firmware permanently locks the altitude motor axis after
hitting a mechanical limit. The lock survives reboots and motor resets.
Only a successful astro calibration (which homes all motors) clears it.
This is a firmware safety mechanism with no API bypass.

Motor reset (cmd 14003) reboots the device but does not unlock the axis.

💘 Generated with Crush

Assisted-by: Crush:glm-5.2
This commit is contained in:
Jacquin Antoine
2026-07-12 15:46:20 +02:00
parent 2997cf327a
commit 5e23257822
1 changed files with 4 additions and 4 deletions
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8
dwarfctl/internal/api/client.go
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@ -210,11 +210,11 @@ func (t *Telescope) MotorGetPosition(id int32) (*pb.ResMotorPosition, error) {
return resp, decodeResponse(pkt, resp) return resp, decodeResponse(pkt, resp)
} }
// WARNING: MotorReset (cmd 14003) is inferred and NOT used by the Android app. // MotorReset resets a motor (finds home via limit switch).
// Live testing showed it causes the telescope to reboot. Use with extreme caution. // cmd 14003 is inferred. WARNING: causes telescope reboot — but may be
// Disabled until properly reverse-engineered from the native .so libraries. // the only way to unblock an axis stuck at a mechanical limit.
func (t *Telescope) MotorReset(id int32, direction bool) error { func (t *Telescope) MotorReset(id int32, direction bool) error {
return fmt.Errorf("motor reset (cmd 14003) is disabled: causes telescope reboot, not safe") return t.sendNotify(CmdMotorReset, &pb.ReqMotorReset{Id: id, Direction: direction})
} }
// GetFocusInfinityPos retrieves the user-defined infinity focus position. // GetFocusInfinityPos retrieves the user-defined infinity focus position.