A simple host computer example for serial communication is introduced here. The microcontroller unit (MCU) continuously sends data through the serial port, and the host computer displays this incoming data. This setup is ideal for testing and understanding basic serial communication between devices.
After adding the front panel, you will see an interface that allows you to interact with the program. This panel is essential for monitoring and controlling the serial communication process.
The back panel will show the underlying logic of the program, including the configuration settings and data flow. This is where all the programming happens in LabVIEW.
First, add a serial port configuration control on the back panel.
Next, configure the serial port settings.
1. Enable Terminator – Set the Boolean value "T" to true. This ensures that the data sent includes a termination character, making it easier to parse at the receiving end.
2. Terminator – Leave it as default, which is an empty string. You can change it later if needed for specific applications.
3. Timeout – Set this to a constant value of 10000 milliseconds. This defines how long the system will wait for data before timing out.
4. Resource Name – Connect this to the "VISA Resource Name" control. This tells LabVIEW which physical or virtual serial port to use.
5. Baud Rate – Configure this to 115200. This is a common rate used for serial communication and ensures compatibility with most devices.
6. Other settings are left as default unless specified otherwise. This helps maintain system stability and reduces the chance of errors.
The image above shows the completed configuration. Now, the serial communication setup is ready for testing and data transmission. This process is crucial for anyone working with embedded systems, IoT devices, or industrial automation.
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