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手触摸tps767d301的1FB脚(25脚)引起DSP复位



采用28335 和tps767d301做产品设计,tps767d301输出电压3.3V和1.9V,上电工作正常,用手触摸tps767d301的25脚(1FB)会引起dsp复位,示波器观察3.3V和1.9V没变化,求解。