AWCC寄存器的WPbit置0,是不是表示ARDY处于disabled状态?
Tony Tang:
不是,是用来定义信号极性的,如果不用,可以通过上拉或者下拉电阻将其置于固定ready状态。
Asynchronous ready (AARDY) pin polarity. Defines the polarity of the AARDY pin.
1 AARDY pin is active-high (strobe period extended when AARDY is high)
0 AARDY pin is active-low (strobe period extended when AARDY is low)