什么是串口（国外英文资料）.docVIP

什么是串口（国外英文资料） There is no such thing as a small number of steps. There is no death in life. If you want to cross the huang2 river, you will be full of snow and snow. I was recommended by my blood. The sea, the sea, and the sea; The wall is so full that no one wants to be. The COM stitch definition COM communication interface, commonly known as serial port, also has a professional name rs-232. (the rs-232 includes a wide range of things, and COM is just one form of it), which is usually 9 stitches, which is used in lenovos consumer and commercial computers, and also has a 25-pin interface. The definitions of the pins are available in other FAQ. But the functions and USES of each definition are unknown, and the meaning is Shared: 9 signal direction from the abbreviation name (function) A debug modem DCD (aka CD) carrier detection Debug demodulator RXD to receive data 3 PC TXD sends data The PC DTR data terminal is ready GND signal ground The debug demodulator DSR device is ready The PC RTS request is sent Debug demodulator CTS allows you to send (send cleanup) Debug demodulator (vibration) bell indicator There is also the female head, which is a slot type, which is not the same form, but the pin definition is the same (more specifically, the following) What is a serial port? -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- A Serial port is a protocol that communicates with a very common device on a computer (dont be confused with the Universal Serial Bus Universal Serial Bus or USB). Most computers contain two RS232 serial ports. The serial port is also the communication protocol of the instrument and instrumentation equipment. Many GPIB compatible devices also carry RS232. In the meantime, serial communication protocols can a