[問題] 8051一般IO腳模擬RS232
程式碼 http://ideone.com/J4Zy7D
震盪器使用 12MHz
由電腦傳16位元的資料至8051
此程式是採取收一個位元,馬上發一個位元的方式回傳給電腦
但當鮑率超過4800後,電腦就會收到錯誤的資料。
用一般IO腳模擬出來的RS232通訊是不是真的無法達到這麼高的鮑率?
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