pic18f4520使用uart做rs232或rs485與電腦pc做連線資料傳輸 內容簡單 從IC腳位設定到啟動UART功能與接收中斷和傳送資料-pic18f4520 use uart do rs232 or rs485 to do to connect with computer pc data transfer is simple and from the IC pin set to start the UART interrupt function and to receive and