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ar8031core电源为什么得不到1.1V

Other Parts Discussed in Thread: AM3354

1、按照ar8031资料上进行原理图设计,发现晶振可以起振了,但是core电源不是1.1V,而是约2.0V,元器件参数完全与资料上一致。 调整dc-dc相关的电容与电感,无效果。 2、ar8031与am3354连起来软件倒可以运行,但一开始仅ar8031时连晶振都不起振(示波器看的)。 有用过ar8031的高手不吝指教!