Built-in Serial ports of cRIO or sbRIO cannot be directly accessed through FPGA. These ports are accessible only from Real-Time section, where they show up as a standard VISA resource. It is recommended to use Serial VIs and functions to communicate with devices connected to those ports. Additional functions are also available in the VISA palette .If your application requires serial communication to be implemented on FPGA, there are several ways to do it, however additional hardware may be necessary:
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