最近将程序烧写入flash中脱机运行,但是上电后,有时候可以复位,有时候不可以。在pin9引脚用3.3K电阻上拉置3.3V,用3n3电容接地。期间也试过将电阻改为10K,电容改为0.1uF,问题一样。会是什么原因呢?
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最近将程序烧写入flash中脱机运行,但是上电后,有时候可以复位,有时候不可以。在pin9引脚用3.3K电阻上拉置3.3V,用3n3电容接地。期间也试过将电阻改为10K,电容改为0.1uF,问题一样。会是什么原因呢?