ttl logic 中文意思是什麼
ttl logic
解釋
晶體管 晶體管邏輯-
Because the signal which serial interface output of mcu is ttl logic level, it is essential to transform ttl electrical level to rs - 232 electrical level when the mcu is communicated with pc. in this paper the universal rs232 / 485 electrical level converting circuit board is designed. it can realize data transmission by the two communication level manner
因為單片機的串列輸出介面輸出的電信號是ttl電平,這樣在和上位機通信時需要通過轉換電路對其電平進行轉換,所以在本課題中設計了通用的rs - 232 485電平轉換電路板,可以實現兩種不同電平的數據傳輸,通過最後的實驗驗證,該電路板能實現所要求的功能,傳輸信號可靠準確。
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