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通道1:nRESETIN_OUT,通道2:PORz
你好,我又用其他样板测了一下,情况有些不一样。
上电以后nRESETIN_OUT先会上升到高电平,然后又变成低电平,一直维持低电平;PORz在上电完成后被拉高(图一)。其中nRESETIN_OUT上升沿在3.3V上电时(图二),下降沿在1.1V内核电压上电时(图三)。