摘要
为了实现实时快速传输高分辨率图像,设计了x4通道的PCI Express图像采集系统,应用于显微镜自动对焦成像模块的大数据量传输。采用了Altera公司型号为EP4CGX30CF23C8的FPGA,该芯片内部集成支持链式DMA传输功能的PCIE硬核。利用Jungo公司的Windriver软件实现了链式DMA的上层应用设计。经测试与验证,该系统能很好地完成成像模块图像数据的实时采集并稳定快速地传送到上位机,无掉帧现象,性能稳定。系统适用于显微镜自动对焦的高分辨率图像模块数据采集。
In order to realize real-time transmission of high-resolution images, the paper introduces the design of PCI Express image acquisition system in x4 channel. The system will be used in a large amount of data transmission of imaging module on Mi- croscope.The system adopts a EP4CGX30CF23C8 FPGA of Ahera company, anti the chip integrates PCIE core which supports the function of chain DMA transmission. By using the Jungo company＇s Windriver software, the paper has realized the design of the upper application of chain DMA. The system has been tested and verified that it can accomplish the acquisition of image data which comes from imaging module in real-time and transmitted rapidly and stably to upper monitor, with no frame dropping phe- nomenon and stable performance. This system is suitable for the data aquisition of the high-resolution and a large amount of data imaging module.
出处
《电子技术应用》
北大核心
2015年第2期42-44,共3页
Application of Electronic Technique
