问下,EVM430FR6047的CH0_OUT连接了换能器,通过换能器0发送,然后换能器1接收,信号走CH0_IN进入。那为啥CH0_OUT还通过一个电容和CH0_IN连接那,这个是必须的吗?有什么作用那?
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问下,EVM430FR6047的CH0_OUT连接了换能器,通过换能器0发送,然后换能器1接收,信号走CH0_IN进入。那为啥CH0_OUT还通过一个电容和CH0_IN连接那,这个是必须的吗?有什么作用那?