如上图,Dp83848K RESET_N上电后输出为1.2V电平,而不是3.3V,解焊串阻后依然是1.2V,这导致PHY芯片一直处于复位状态,求解。
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如上图,Dp83848K RESET_N上电后输出为1.2V电平,而不是3.3V,解焊串阻后依然是1.2V,这导致PHY芯片一直处于复位状态,求解。