1.当设计一个外置SDRAM的板子时，层叠是非常重要的，2层板是不适合新手的，如果你在乎EMI性能的话。 2.当STM32和SDRAM都是非BGA封装时，如果你有比较充足的经验，可以使用4层板 3.如果STM32和SDDRAM都是BGA的话，6层板是最低要求，在保证电源和信号完整性的前提下能 ...

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The GPD Pocket 4 is an 8.8-inch laptop weighing just 770g, that is designed to combine portability with powerful performance. GPD likens its aesthetic to that of an Apple MacBook, highlighting its ...

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