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Itop4412 HDMI display (4.0.3_r1)

2022-04-23 07:08:00 【OneSea】

0 Preface

    《[Exynos4412][iTOP4412]LCD drive （FB）》 Analysis of the LCD drive , This paper continues to analyze iTOP4412 HDMI Implementation and effect of display , The source code version used is linux-3.0.15 + android-4.0.3_r1.

1 principle

    What I bought was iTOP4412 elite , Its IO There's... On the board 2 individual HDMI Interface ：HDMI-A and HDMI-C, The former outputs LVDS The signal , The latter outputs HDMI The signal （IO The plate is marked ）：

chart 1.1 iTOP4412 HDMI Interface

    HDMI-C Of PIN The definition is as follows （ common 19PIN）：

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https://yzsam.com/2022/04/202204230606153743.html

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