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同步串口(SPORT)作为一种可靠、高效的通信总线,已经在许多领域中得以应用。针对电力系统中智能电子装置(IED)的多采样回路、多板卡通信等共性问题,给出了一套完整的SPORT系统设计方案,以ADSP-21469为主控器件,使模拟/数字转换器(ADC)芯片AD7606及现场可编程门阵列(FPGA)通过SPORT互联完成多采样回路的采集功能;以多块ADSP-21469板卡通过SPORT互联完成板卡间通信功能。结合系统硬件设计,给出了软件设计流程,为解决IED该类问题提供了新思路。
Synchronous serial port (SPORT) As a reliable and efficient communication bus, has been applied in many fields. Aiming at the common problems of multi-sampling loop and multi-card communication in intelligent electronic devices (IEDs) in power system, a complete set of SPORT system design is given. The ADSP-21469 is the main control device, which makes analog / digital converter (ADC) chip AD7606 and field programmable gate array (FPGA) through the SPORT interconnect multi-sampling loop to complete the acquisition function; to multiple ADSP-21469 board through the SPORT interconnect card to complete inter-board communication. Combined with the system hardware design, the software design flow is given, which provides a new idea for solving the IED problem.