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Hi,guys! I'm currently working on how to send character"hello" to FPGA and then transmit "hello" back to my PC. But it seems I only can send some characters to my board and cannot receive the chracters back to PC. I wonder how to build my code in python to get the characters back to my PC. The attachment is my code(PYTHON) and result of runing. import serial ser = serial.Serial("com9",9600,timeout=0.25) print(ser.name) print(ser.port) #ser.open() c=input("hello") b=ser.isOpen() s=ser.read(10) ser.write(c.encode()) print(s) print(b) ser.close() Thanks, Dehao