FPC-8057 User’s Manual
Appendix A Example Program
The FPC-8057 offers loop back test program for two comports. Please
select the program D:\FPC-8057\Example\Serial Test.

Serial port loop back test program

Before running the program, you need to connect two comports of the
FPC8057.
COM2
(RS-232) COM1 (RS-232)
RxD
7
8 TxD
Example Program 39