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adv7480 MIPI clock problem

Question asked by lulei1 on Aug 9, 2018
Latest reply on Aug 13, 2018 by lulei1

Hi All.

 

We use adv7480  chip for our custom board。

I tried intialization script, “08-14 Free-run MIPI TxA CSI 4-Lane - RGB888, 1920x1080p 60Hz“ example of  ADV7481ES3C-VER.3.6c。

I can see digital signal on D0P and D0N to D3Pand D3N pins, but can`t see MIPI CLK signal on CLK P and CLK N pins。

I checked signal on XTAL. It is 28.6 MHz.

CLK Signal lines were not connected to each other as the old problem posted here before named "adv7280-M clock problem"。

 

Can anybody give me advice, what could be wrong ?

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