基于LVDS和PCI接口的高速图像传输系统设计

Design of the high-speed image transmission system based on LVDS and PCI interface

针对数字图像处理与传输领域数据量大而传统接口无法满足其高速率传输要求的现状,提出了一种基于LVDS和PCI接口的高速图像传输系统的设计,对系统总体设计和各电路模块进行了详细介绍和分析,并对系统整体功能进行了测试。该系统以FPGA作为控制核心,采用乒乓操作实现数据的无缝缓冲,重点研究了LVDS接口和PCI总线技术,保证图像数据的高速、可靠传输。测试结果表明,该传输系统性能稳定,能可靠地实现图像数据传输,最大传输速率可达18 MB/s,具有一定的实用价值。

For the situation of large amount of data in digital image processing and transmission fields, and traditional interfaces are unable to meet the high-speed transmission requirements, a high-speed image transmission system based on LVDS and PCI interface is proposed, in which the overall design of the system and each circuit module are described and analysed in detail, and overall system functions are tested. FPGA is regarded as the control core in this transmission system. Seamless data buffering has been achieved by using ping-pong operation. This paper focuses on the LVDS interface and the PCI bus technology so as to ensure high-speed, reliable transmission of image data. The test results show that the system is stable and reliable to implement the transmission of image data, and the maximum transfer rate is up to 18 MB/s,which has certain practical values.