该方法难点在于AHB总线突发传输白勺实现，且支持多个AHB设备和多个WISHBONE设备之间白勺互相访问。
The special difficulties lie in the implementation of the burst transmission of the AHB bus, and the supporting of the mutual access between multiple AHB and multiple WISHBONE.
在总线结构的分布式测控系统中，当系统实时性要求较高、突发性较强时，主从通信方式往往不能适应需要，而需要采用竞争式通信。
In distributed measurement and control system with bus structure, master slave communication may be replaced by race communication, when real time and burst are needed.
选择pci9054为PCI总线接口，解决了数据传输过程中本地总线速率与PCI总线速率相互匹配的问题，并实现了数据的大量突发传输。
PCI9054 was selected as PCI bus interface, the speed matching issue between local bus and PCI bus was resolved in course of data transmission, and the gusty transmission of mass data was realized.
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