[問題] 為什麼輸出0 轉一圈 還是輸出0 有啥用?
就是比如說GPIO
輸出0 就還要再加個open drain 讓輸出還是0..,
或是0 加兩個MOS 還是 0
這樣有甚麼特別之處嗎???
為何一開始的0不直接給外面就好 還要繞來繞去
還是一開始的0 不是那麼標準的0?
THANKS
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