TI中文支持网最近想选用tps659037替换之前的电源芯片给SOC芯片供电，但是378和379的电压都不能完全对应，需要更改寄存器进行配置，查阅手册659037有两种配置方式i2c和spi，由于之前一直用spi，看手册说otp默认是通过i2c进行配置的，想询问要想切换成spi进行寄存器配置是否需要i2c先进行设置或者有什么办法可以直接采用SPI进行功能配置？
Johnsin Tao：
Hi直接用I2C接口来做：All LDOs and step-down converters can be controlled by the SPI or I2C interface, or by power request signals. In addition, voltage scaling registers allow transitioning the SMPS to different voltages by SPI, I2C, or roof-and-floor control.
