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TPS65910AA1默认输出



您好!TPS65910AA1规格书VDIG1,VDIG2默认输出应为1.8V,但是现在我们实际测得是1.2V.我们配置的是从EEROM启动,后用I2C接口读取,发现芯片设置的是1.2V输出,请问要如何修改这个配置,目前用I2C修改寄存器但是掉电无法保存,请问如何如何修改到EEROM里面去??