CAJ | 학술논문

在现代通信技术中,为了提高VESA视频数据的传输和处理速率,VESA视频数据通常要通过高速串行总线Ra-pidIO传输到主机或DSP中。因此,传输时必须在VESA接口和RapidIO接口之间添加时序转换电路。为了解决传统方法中通过时序转换电路直接进行时序转换所带来的设计复杂、可移植性差等问题,文中基于应用需求,提出一种用DPRAM将VESA接口与RapidIO的DMA接口隔离的架构,设计并实现了一种VESA到RapidIO接口的转接桥,以满足二者之间的通信需求。功能仿真和工程实践表明,该转接桥工作稳定,性能良好,较好地满足了应用需求。
재현대통신기술중,위료제고VESA시빈수거적전수화처리속솔,VESA시빈수거통상요통과고속천행총선Ra-pidIO전수도주궤혹DSP중。인차,전수시필수재VESA접구화RapidIO접구지간첨가시서전환전로。위료해결전통방법중통과시서전환전로직접진행시서전환소대래적설계복잡、가이식성차등문제,문중기우응용수구,제출일충용DPRAM장VESA접구여RapidIO적DMA접구격리적가구,설계병실현료일충VESA도RapidIO접구적전접교,이만족이자지간적통신수구。공능방진화공정실천표명,해전접교공작은정,성능량호,교호지만족료응용수구。
In the modern communication technology,the video data is usually transmitted to hosts or DSPs through high-speed serial bus RapidIO for improving its transmitting and processing speed. Therefore,a conversion circuit of timing must be added between VESA in-terface and RapidIO interface. To make up for the deficiencies,such as complex design and poor transportability,as a result of changing the timing directly in the traditional way,offer an architecture segregating the VESA interface and RapidIO interface with the DPRAM in this paper,design and implement a VESA to RapidIO bridge in order to satisfy the demands of the communication between them. The functional simulation and engineering practice shows that it works well and has good performance,meeting the application requirement better.