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TFP410配置不成功

Other Parts Discussed in Thread: TFP410

配置时按照数据手册,使用的是I2C模式,I2C程序用在别的芯片上好使,但按照手册对TFP410配置时,始终配置不良,求指导,是硬件哪里配置有问题吗?

sda,scl都有5k上拉,上电后复位RST管脚,供电都是3.3V