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软件模拟SMBus通信

Other Parts Discussed in Thread: BQ40Z50-R1

我使用I/O口模拟SMBus通信接口,编写模拟软件与bq40z50-r1进行通信,无ACK响应。这个读取数据前需要初始化吗?还是有什么配置?波形图如下