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关于am5718操作系统运行问题

Other Parts Discussed in Thread: AM5718, TPS659037, TMDSEVM572X

请教一下各位,5718的电源管理芯片TPS6590377的I2C接口是否连到am5718上对于系统正常启动运行有没有什么直接关系吗?假如没有连上,那么系统得运行是不是会因故卡住?而屏蔽与电源管理相关的代码后是不是可以正常运行系统,因为现在虽然I2C接口没有接到am5718上,但是电源各项输出都正确,就是系统启动后访问电源相关代码会卡住,不清楚直接原因,谢谢解答!