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您好,
可以用示波器查看下IIC通信时序波形,看下通信波形是否存在干扰和通信时序是否正常?
抱歉,我们没有C语言驱动代码,但我们提供了DAC8050x设备的头文件,您可以使用它来加快开发速度。附件是DAC80502.h。