Generally 9600, 115200 can also be customized.ĭata bits are the number of bits of input data. These two values must correspond to the lower computer.
Like the visa resource name, you can also choose to create input controls and constants. Used to select the port number for communication with the lower computer. 1) VISA resource nameĬan right-click on the terminal or create an input control. Next, I will introduce their configuration methods one by one. Parity check: check the number of code 1.Generally speaking, the main contents of the configuration are: Next we have to configure the serial port. After completing these operations, close the serial port. Is to configure the serial port first, then write, and then read. This is a simple sending and receiving program, the main body of the program is mainly composed of the controls mentioned above.
There are also detailed help information, which is very convenient for our development and application. Uses the shortcut key ctrl+h to open the instant help, in the instant help we can see the description of the control. Then right-click and select Instrument I/O, you can see the 4 VISA controls we will use this time. If the installation is successful, you can see the COM port.
The VISA function library resides in the computer system and is the standard software communication interface between the computer and the instrument, and the computer controls the instrument through itĪfter the download and installation are complete, you can click on NI MAX VISA provides a library of standard I/O functions for instrument programming, called the VISA library. The general name of the I/O interface software standard and its specifications formulated by the VXI plug&play alliance. The VISA driver is not included in the software package, you must download it yourself.Īrchitecture, referred to as "Visa"), the virtual instrument software structure, is
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