2input serial port with 8051

I have a problem with interfacing two serial port with 8051 microcontroller. I have to use bar code reader and RF reciver and transmitter which both of them interfaced serially. I am thinking to add...
2input serial port with 8051

I have a problem with interfacing two serial port with 8051 microcontroller. I have to use bar code reader and RF reciver and transmitter which both of them interfaced serially. I am thinking to add...
IR serial comms with an 8051

Anyone done this? any tips?
IR serial comms with an 8051

Anyone done this? any tips?
ASSIGN serial port to virtual device

There is a nice virtual null modem cable ( http://com0com.sf.net ) which saves me from installing hardware on my pc to get 2 serial ports. It works well with most applications, 3rd party and self written...