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在多DSP信号处理系统的设计过程中,开发基于标准总线的信号处理模板已经成主流设计方案。这种设计方案的难点就是局部总线到标准总线的时序转换比较复杂。在详细介绍VME总线功能特点的基础上,给出了一种在FPGA控制下实现的工业控制计算机通过VME总线与多DSP信号处理板局部总线进行通信的接口设计方案。FPGA的控制功能采用状态机工作方式实现。
In the design of multi-DSP signal processing system, the development of signal processing template based on standard bus has become the mainstream design. The difficulty of this design is the local bus to the standard bus timing conversion is more complicated. On the basis of introducing the features of VME bus in detail, an interface design scheme of industrial control computer communicating with local bus of multi-DSP signal processing board through VME bus is given. FPGA control functions using the state machine work to achieve.