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launchpad上的晶振q2

Other Parts Discussed in Thread: MSP430G2452

launchpad上的晶振q2应该接多大的?

  • HongShun Ling, 你好!

    Launchpad的晶振Q2是接在XT1对应的管脚XIN和XOUT。在Launchpad中同时配送的应该有一个32768Hz的晶振,你可以直接使用这个。实际上,XT1可能有LF Mode和HF Mode(400-kHz to 16-MHz),具体请参见对应的芯片手册,但是对应于MSP430G2xxx系列,XT1并不支持HF Mode,故只能接32768Hz的晶振。下图是从MSP430G2452的Datasheet中截取出来的。