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ADS1100A1IDBVR I2C通信失败

user6102921
Prodigy 30 points


ADS11与主芯片STM32F030R8T6通信，通信失败，MCU的IO口模拟I2C（PC10和PC11)）通过串联电阻（2个100欧））与ADS11连接，上拉电阻4.7k，电压4.5-5V左右， 去掉串联保护电阻还是失败，没有收到信息 。请专家帮忙分析原因。