In this mode, NI provides a pre-defined personality for the FPGA that periodically scans the I/O and places it in a memory map, making it available to LabVIEW Real-Time. Scan Interface (CompactRIO Scan Mode) - This option allows you to program the real-time processor of your CompactRIO System and access the I/O without needing to program the FPGA. Note: You can change the programming mode later if needed using the CompactRIO Chassis Properties dialog box. Select the appropriate programming model for your application. You can change this setting later in the LabVIEW Project if needed. If you have LabVIEW Real-Time and LabVIEW FPGA on your development computer, you will be prompted to select which programming model you would like to use. LabVIEW provides two programming modes for CompactRIO Systems. Expand and select your existing CompactRIO Real-Time System If your system is on a remote subnet, you can also select to manually enter the IP address.įigure 3. Ensure that your system is properly configured with a valid IP address in Measurement & Automation Explorer (MAX). Note: If your system is not listed, LabVIEW could not detect it on the network. Add new targets and devices to your LabVIEW project.Įxpand the Real-Time CompactRIO folder, select your system.
FIRST ROBOTICS LABVIEW PROGRAMMING TUTORIAL CODE
Starting a New CompactRIO Project in LabVIEWīegin by creating a new project in LabVIEW, where you will manage your code and hardware resources.Ĭreate a new project in LabVIEW by selecting File » New ProjectĪdding your CompactRIO system to the project by right-clicking on the Project item at the top of the tree and select New » Targets and Devices… This dialog allows you to discover systems on your network or add offline systems.įigure 2.
FIRST ROBOTICS LABVIEW PROGRAMMING TUTORIAL SERIES
Because the modules contain built-in signal conditioning for extended voltage ranges or industrial signal types, you can usually connect wires directly from the C Series Modules to your sensors and actuators. Inputs & Outputs ( C Series I/O Modules )Ī variety of I/O types are available including voltage, current, thermocouple, RTD, accelerometer, and strain gauge inputs up to ☖0 V simultaneous-sampling analog I/O 12, 24, and 48 V industrial digital I/O 5 V/TTL digital I/O counter/timers pulse generation and high voltage/current relays. You can also bring existing VHDL or Verilog IP into LabVIEW FPGA to save on development time. Using the FPGA hardware embedded in CompactRIO, you can implement custom timing, triggering, synchronization, control, and signal processing for your analog and digital I/O. Now, any engineer or scientist can use graphical LabVIEW tools to program and customize FPGAs. Traditionally, FPGA designers were forced to learn and use complex design languages such as VHDL to program FPGAs. The embedded FPGA is a high-performance, reconfigurable chip that engineers can program with LabVIEW FPGA tools. You can also integrate existing C/C++ code with LabVIEW Real-Time code to save on development time. Choose from more than 600 built-in LabVIEW functions to build your multithreaded embedded system for real-time control, analysis, data logging, and communication. LabVIEW has built-in functions for transferring data between the FPGA and the real-time processor within the CompactRIO System. The CompactRIO System features industrial processors that deterministically execute your LabVIEW Real-Time applications on the reliable NI Linux Real-Time or Wind River VxWorks real-time operating system. LabVIEW contains built-in data transfer mechanisms to pass data from the I/O modules to the FPGA and also from the FPGA to the embedded processor for real-time analysis, post processing, data logging, or communication to other distributed targets or computers. This represents a low-cost architecture with open access to low-level hardware resources. The FPGA is connected to the embedded real-time processor via a high-speed PCI or AXI bus. Each I/O module is connected directly to the FPGA, providing low-level customization of timing and I/O signal processing. CompactRIO is powered by NI LabVIEW FPGA and LabVIEW Real-Time technologies, giving engineers the ability to design, program, and customize the CompactRIO System with easy-to-use graphical programming tools.ĬompactRIO combines an embedded real-time processor, a high-performance FPGA, and hot-swappable I/O modules.
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