Sign in to like videos, comment, and subscribe. Watch Queue Queue. I am new to serial programming in Linux using C. I have found a small piece of code to write data on serial port which I am sharing here. After running this code I may assume that data has written. Serial port就是所谓的串口，或者串行口。是电脑的接口之一，连接某些设备用的，如果你不需要仔细了解它的话，把它当成跟USB类似的接口就可以了。只是有时候串口不支持热插拔.

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Serial communication is the most common low-level protocol for communicating between two ormore devices. Normally, one device is a computer, while the other device can be a modem, aprinter, Arduino ® hardware, another computer, or a scientific instrument such as an oscilloscopeor a function generator.

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For many serial port applications, you can communicate with yourinstrument without detailed knowledge of how the serial port works. Communication through aserial port is established with a serialport object, which you create inthe MATLAB ® workspace.

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For information about creating a serialportobject, see.Before you can write or read data, the serialport object and the instrumentmust have identical communication settings. For information, see.

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Basic features of serial port communication.Establish a connection between MATLAB and the device using the serial port.Set properties associated with the device baud rate and serial data format.Write and read both text and binary data with a serial port device.Enhance instrument communication by executing a callback function when a specifiedevent occurs on the device.Signal the presence of connected devices and control the flow of data usingcontrol pins.Connect to serial port devices using serialport instead of serial. Featured Examples.