DS90UB962-Q1: The four-way camera signal is invalid

1、Symptoms: First, the front camera flickers, then a black screen, and then the three cameras also have a black screen, and an exclamation mark appears. DTC reported that the front, rear, left, and right camera signals are invalid.

2、On-site investigation results: The shielding layer of the front camera wiring harness is broken, causing abnormal changes in the front camera signal when passing through the wiring harness

3、The SOC detects that the signal output by the Deserializer is invalid. Proving that the problematic signal invalidation occurs before the SOC input

4、TEST CONDITIONS：CSI-2 non-synchronous mode

          933-962-TDA2PH

Question:

       1. Under what circumstances will the abnormal signal of one camera affect the failure of the other three signals?

       2. What is the logic inside the deserializer?

       3. Where is the specific node where the interference occurs?

Amy Luo：

您好，

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