RTEMS(Real Time Executive for Multiprocessor Systems)是前美国军方研制的嵌入式实时操作系统(RTOS),多用于航天、国防等领域。本文基于FPGA芯片virtex4中内嵌Powerpc405控制器的RTEMS移植过程进行了分析,介绍了硬件系统的搭建,交叉...RTEMS(Real Time Executive for Multiprocessor Systems)是前美国军方研制的嵌入式实时操作系统(RTOS),多用于航天、国防等领域。本文基于FPGA芯片virtex4中内嵌Powerpc405控制器的RTEMS移植过程进行了分析,介绍了硬件系统的搭建,交叉编译环境的建立,内核的编译,RTEMS中断管理的实现方法,详细叙述了网络驱动结构,并给出了网络性能测试方法。展开更多
A high-speed X-ray nondestructive detector is designed in this paper. The principle of X-ray nondestructive detection is analyzed, and a general system scheme of the high-speed X-ray nondestructive detector is propose...A high-speed X-ray nondestructive detector is designed in this paper. The principle of X-ray nondestructive detection is analyzed, and a general system scheme of the high-speed X-ray nondestructive detector is proposed. The Virtex-4 series Fxl2 FPGA chip is used to design its hardware circuit, the PowerPC405 embedded system is developed, the high-speed image processing algorithm is applied to compile its processing software, and TCP/IP protocol is employed to compile the correspondence software, to realize high-speed X-ray signal gathering, processing and transmission. The experimental result indicated that the detector can be applied to the long-distance and on-line nondestructive detection of product line with Steel Wire Ropes in correlative industry field, such as mines, ports and wharfs. The running rate of the conveyer belt could achieve 6m/s when the survey width of the detector is 1.6 m.展开更多
文摘RTEMS(Real Time Executive for Multiprocessor Systems)是前美国军方研制的嵌入式实时操作系统(RTOS),多用于航天、国防等领域。本文基于FPGA芯片virtex4中内嵌Powerpc405控制器的RTEMS移植过程进行了分析,介绍了硬件系统的搭建,交叉编译环境的建立,内核的编译,RTEMS中断管理的实现方法,详细叙述了网络驱动结构,并给出了网络性能测试方法。
基金Priority Project of Tianjin Science Technical Commission(08ZCKFGX02400)Science and Technology Development Foundation of Tianjin Colleges and Universities(2006ZD38)
文摘A high-speed X-ray nondestructive detector is designed in this paper. The principle of X-ray nondestructive detection is analyzed, and a general system scheme of the high-speed X-ray nondestructive detector is proposed. The Virtex-4 series Fxl2 FPGA chip is used to design its hardware circuit, the PowerPC405 embedded system is developed, the high-speed image processing algorithm is applied to compile its processing software, and TCP/IP protocol is employed to compile the correspondence software, to realize high-speed X-ray signal gathering, processing and transmission. The experimental result indicated that the detector can be applied to the long-distance and on-line nondestructive detection of product line with Steel Wire Ropes in correlative industry field, such as mines, ports and wharfs. The running rate of the conveyer belt could achieve 6m/s when the survey width of the detector is 1.6 m.
