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关于ADC12的问题



ADC12CTL1寄存器有SHP位,和SHS位,,但我不太懂两者的关系,手册说SHP=1采样信号来自采样定时器;SHP=0时,采样信号来自触发输入信号,,我有几个问题:

1.  我想知道什么是采样定时器,什么是触发输入信号

2.  SHI和SAMPCON是什么意思?

3.  是在SHP=0时,才用SHS位吗?请仔细说说SHP=0和SHP=1两者的区别,以及ADC12采样和转换时序

这些问题困惑我好久了,,希望大家帮帮忙~~~~~~~~~~~~~~