我应如何处理MSP430未使用的I/O接脚?
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你好,论坛上以前有过类似的问题,我帮你搜了一下。
(1)可置为输入口,内置上拉或下拉,这是最安全的,设为输入口时一定要上拉或下拉的,否则IO口空接状态不稳定,在0和1之间跳动,就会消耗电流,导致待机、睡眠电流增加;
(2)置为输出口,这种方法不太好,一旦外部有电源或GND短路到这个IO口的话就可以会烧毁IC