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看看ea脚可靠接高电平了吗
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ea脚已经搞高电位了。
不过,原因已经找到了。
真是暴汗!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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复位电路是好的没错,可忘记和cpu的reset脚接起来了,我晕死啊晕死800遍啊800遍……