本帖最后由 FSL_TICS_imx 于 2014-6-5 16:37 编辑
IMX6SDLCEC Page[33]中有这么一段描述：
Need to ensure that there is no back voltage (leakage) from any supply on the board towards the 3.3 V supply (for example, from the external
components that use both the 1.8 V and 3.3 V supplies)
能帮忙解释下它是什么意思么？是不是需要在DDC 3.3V输出端追加防逆流措施？另外，具体如何防逆流保护？我参照了SDP的SPF-27392_C3的设计，好像也没看到呢。
求解答，谢谢！
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