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138首次启动失败

新做了个138的板子,发现拨插电的情况下,系统会起不来,要重新按下复位键才起的来,参考的是官网的原理图,但是修改了TRST引脚,上拉4K7到3.3V,下拉10k到地就正常,启动情况都是异常的,请问下这是怎么回事