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MSP430F5171 模拟比较器能否比较两个外部信号



模拟比较器COMP_B能比较两个外部信号吗?

如图,我想MITTEL接CB12引脚,不同时刻分别和NULL_A接CB13引脚、NULL_B 接CB14引脚、NULL_C接CB15引脚进行比较,昨天试了好几十次都不行。请问COMP_B能进行这种模式比较吗?如果可以,可能提供一点例程吗?如果不行,有什么方法可以实现?