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TDA4VM: 多graph 只有一个display

Part Number: TDA4VM

在TDA4平台下 mcu2_0 创建两个graph 对应同一个display(HDMI)  一个graph 位于 APP_DCTRL_OVERLAY_LAYER_NUM_2 一个graph 位于 APP_DCTRL_OVERLAY_LAYER_NUM_0  这个时候一个会被覆盖掉,当我想用另外一个graph的时候怎么让当前的被遮挡 。