The FPGA Interface C API is add-on software for the NI-RIO driver. It enables communication between the processor and the user-programmable FPGA within NI reconfigurable I/O (RIO) hardware such as:

• CompactRIO modules
• CompactRIO Single-Board Controllers
• FlexRIO devices
• Multifunction reconfigurable I/O devices
• MXI-Express RIO accessories for embedded control and acquisition applications

The FPGA Interface C API helps you use LabVIEW to program the NI hardware FPGA and choose LabVIEW or C/C++ tools to program the system processor.