SNLA493 August 2025 DS90UB935-Q1 , DS90UB960-Q1
This document was translated from a simplified Chinese source. (ZHCAFN1)
Advanced Driver Assistance Systems (ADAS) typically use multiple cameras to sense the perimeter. If one camera fails or accesses, the system needs to continuously rely on other cameras to work or access camera data in real time. The hot swap mechanism allows the system to detect camera removal or access in real time without shutting down or rebooting, mark the camera as unavailable when detecting the camera removal, and ensure that other cameras are functioning properly; the system can access to camera data in real time when detecting the camera access. The hot swap mechanism is therefore an integral part of building ADAS with high security and high availability.
ADAS FPD-Link is an important device for in-vehicle cameras. Its rich diagnostic features allow users to access or remove surveillance cameras and thus implement hot swap mechanisms. This document describes the diagnostic features and reference codes on the hot swap mechanism of FPD-Link device to help users quickly implement the hot swap mechanism.