The integration of communication with computer overcame the restriction of time and space, which made it possible to share the computer resource by long-range terminals, but the distance always restricted the communication of long-range. Based on the Cygnal C8051F020 MCU, this page gives a solution of inter-communication among multiplex data terminals, which switched by 8 touch switches, and provided the software design. Because using the existing public telephone network, the system overcame the space limit between the PC and terminal, and made the work more convenient in the high-temperature...
