CAJ | 학술논문

对于串口服务器的应用领域环境恶劣、实时性和稳定性要求高，提出一种基于MPC8280处理器的串口服务器软、硬件设计方案。将UART转PCI专用芯片XR17D158作为从设备挂载到MPC8280的PCI总线上，可以扩展出8路UART接口的串行数据通过PCI总线传送到MPC8280主控端。将该设计应用在造纸工业的纸卷输送包装智能控制系统中，结果表明，该串口服务器可在工业环境中稳定运行，能够控制多路串口设备，实现远距离实时数据传输。
대우천구복무기적응용영역배경악렬、실시성화은정성요구고，제출일충기우MPC8280처리기적천구복무기연、경건설계방안。장UART전PCI전용심편XR17D158작위종설비괘재도MPC8280적PCI총선상，가이확전출8로UART접구적천행수거통과PCI총선전송도MPC8280주공단。장해설계응용재조지공업적지권수송포장지능공제계통중，결과표명，해천구복무기가재공업배경중은정운행，능구공제다로천구설비，실현원거리실시수거전수。
Since the serial port server has harsh application environment,and its real-time and stability performances are high as well,we present an MPC8280 processor-based software and hardware design scheme for serial port server.The UART is converted to PCI chip XR1 7D1 58 and used as the device to mount on PCI bus of MPC8280,it can transfer the serial data of the extended eight UART interfaces to MPC8280 host through PCI bus.Applying our design to intelligent control system of paper roll feeding and packaging in papermaking indus-try,results show that the serial port server can gain stable operation in industrial environment,control multiple equipments with serial port, and achieve real-time distance data transmission.