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给出了基于Nios Ⅱ的彩色多普勒超声诊断硬件系统的多处理器设计方案,分析研究了Nios Ⅱ系统的启动过程,提出了适合本设计的系统启动方法,最后设计了一套用于控制超声前端系统的系统控制总线,建立了Nios Ⅱ系统仿真平台,并对系统启动方案和总线控制器进行了功能验证。通过仿真证明了所设计系统的有效性。
The multi-processor design scheme of color Doppler ultrasound diagnosis hardware system based on Nios Ⅱ is given. The start-up process of Nios Ⅱ system is analyzed and the system start-up method suitable for the design is proposed. Finally, Front-end system of the system control bus, established Nios Ⅱ system simulation platform, and the system startup scheme and the bus controller functional verification. The simulation results show the effectiveness of the designed system.