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1. 不需要的端口供电管脚除了filter不要外如何处理,如PCIE 不需要
2. 同一幅值的电压可以用同一电源芯片供电(区别只是不同的滤波处理)?
3. 上电顺序的控制是否可用电源芯片的PG和EN管脚实现
4. 是否有开发板的原理图等推荐设计?
请参考下面的硬件设计文档有关于电源的设计,不用管脚的处理。
Hardware design guide for KeyStone I devices
https://www.ti.com/lit/an/sprabi2d/sprabi2d.pdf
开发板文档及原理图可以到下面的第三方公司Advantech网站下载。
https://www2.advantech.com/Support/TI-EVM/6678le_of.aspx