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Clear serial port device buffers
flush(device)
flush(device,"input")
flush(device,"output")
flush(device) flushes all data from both the input and output buffers of the specified serial port.
device
example
flush(device,"input") flushes only the input buffer.
flush(device,"output") flushes only the output buffer.
collapse all
Create a connection to a serial port device.
device = serialport("COM3",9600)
device = Serialport with properties: Port: "COM3" BaudRate: 9600 NumBytesAvailable: 0 Show all properties, functions
Write some data to the device and view the number of bytes available to be read in the input buffer.
write(device,1:5,"uint8") device.NumBytesAvailable
ans = 5
Flush both the input and output buffers.
flush(device);
View the number of bytes available to be read.
device.NumBytesAvailable
ans = 0
The input buffer has no data.
serialport
Serial port connection, specified as a serialport object.
Example: flush(device) flushes data from the serial port connection device.
Introduced in R2019b
getpinstatus
read
write
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