基于SPI总线和W5100的医疗仪器网络接口设计

Design of Medical Instrumentation Network Interface based on SPI Bus and W5100

介绍了一种基于SPI总线和W5100的医疗仪器网络接口的设计方法。网络接口由PIC单片机、W5100网络芯片和RJ-45组成。W5100通过RJ-45接口PC机、局域网或Internet;单片机通过SPI总线获取W5100的网络信息,并实现与医疗仪器的信息交换与控制。实验结果表明:基于SPI总线和W5100的医疗仪器网络接口的硬件结构简单、性能稳定、兼容性强。

To introduce a medical imtrumentation network interface based on Serial Peripheral Interface （SPI） bus and W5100. The network interface is composed of PIC microcontroller unit （MCU）, W5100 network-hip and RJ- 45. W5100 interfaces personal computer （PC）, Local Area Network （LAN） or Intemet by RJ-45, while MCU gets network information from W5100 by SPI bus and achieves information exchange and control with medical imtrtanentation. The results of experiment indicate that this design has the simplicity of hardware structure, high stability of data communication and fn-m compatibility.