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基于FPGA的监控计算机通信控制卡设计
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作者 李森 唐吉林 +1 位作者 唐建 吴昌昊 《航空计算技术》 2023年第6期119-123,共5页
针对监控计算机与被监控设备间通信接口的适配问题,采用FPGA设计了一款通信控制卡,解决LS2K1000J主板的通信接口扩展与适配问题。基于Local Bus,在FPGA中设计了Local Bus总线控制模块,实现将RS485CAN1553BSPI总线挂载到Local Bus总线,... 针对监控计算机与被监控设备间通信接口的适配问题,采用FPGA设计了一款通信控制卡,解决LS2K1000J主板的通信接口扩展与适配问题。基于Local Bus,在FPGA中设计了Local Bus总线控制模块,实现将RS485CAN1553BSPI总线挂载到Local Bus总线,设计了一种双MAC网络路由结构,解决了龙芯的两个GMAC接口通过FPGA路由,与PHY芯片连接,在10/100/1000 Mbps速率下网络通信的数据稳定性问题。在FPGA中,采用多重加载的方式,通过运行不同的程序,实现PRP冗余协议接口与普通网络接口之间的切换;FPGA中采用PRP IP核的方式,实现PRP冗余协议。通过实际测试,该通信控制卡可以满足应用需求,且性能稳定。 展开更多
关键词 FPGA local bus 1553B总线 双MAC PRP冗余协议
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Development of Data Acquisition Card Driver for ICRH System on EAST
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作者 刘大明 罗家融 +1 位作者 赵燕平 秦成明 《Plasma Science and Technology》 SCIE EI CAS CSCD 2008年第2期240-244,共5页
Presented in this paper is the development of the driver for the data acquisition card with a peripheral component interconnection (PCI) local bus on the ion cyclotron range of frequency heating (1CRH) system. The... Presented in this paper is the development of the driver for the data acquisition card with a peripheral component interconnection (PCI) local bus on the ion cyclotron range of frequency heating (1CRH) system. The driver is mainly aimed at the embedded VxWorks system (real-time operating system) which is widely used in various fields of real-time systems. An efficient way is employed to develop this driver, which will advance the real-time control of the ICRH system on the experimental advanced superconductor tokamak (EAST). The driver is designed using the TORNADO integrated development environment (IDE), and implemented in C plus language. The details include the hardware configuration, analogue/digital (A/D) and digital/analogue (D/A) conversion, input and output (I/O) operation of the driver to support over five cards. The data acquisition card can be manipulated in a low-level program and meet the requirements of A/D conversion and D/A outputs. 展开更多
关键词 ICRH PCI local bus data acquisition DRIVER VxWorks A/D D/A embed-ded system
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