A PCI adapter for image processor
A technology of image processors and adapters, applied in the fields of electrical digital data processing, instruments, etc., can solve problems such as uneconomical development costs, poor system scalability, and increased hardware design complexity, and achieve good system scalability and tailoring High performance, reasonable design, and simple hardware structure
Inactive Publication Date: 2009-12-09
SHANGHAI UNIV +1
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Problems solved by technology
[0003] Generally, the method of developing PCI equipment is to select a dedicated PCI chip and MCU to complete the function of PCI adaptation, which has poor scalability for the system and increases the complexity of hardware design. Once the user proposes a change to the system requirements, then It is inevitable to make major changes to the hardware, which is not cost-effective for development costs
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[0026] 1) Select Altera's FPGA, connect to the PCI interface according to the requirements of the PCI bus specification, add an active crystal oscillator, power conversion module, programming interface, FLASH, SRAM, PCI interface and adapter local control interface to the FPGA, and form a cost Invent the hardware part and add it to an image processor of your own design.
[0027] 2) Write each module in the FPGA into the configuration chip of the FPGA through the programming interface.
[0028] 3) Insert the image processor with the present invention in the PCI slot
[0029] 4) The computer finds the hardware and installs the driver.
[0030] 5) The user writes the user control software according to the description of the self-defined function library, and completes the "transparent" control of the image processor with the present invention.
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The invention relates to a PCI adapter for an image processor. Using SOPC technology, the adapter can enable users to change the control interface of the local end according to the requirements of their own design without changing the hardware. The computer side of the adapter has a WDM driver and a dynamic link library, so that the user who writes the interface can control the hardware of the image processor with the PCI adapter from the computer side without knowing the working principle of the PCI adapter. A large-scale programmable device can be used on the adapter hardware, one end of the programmable device is connected to the PCI bus, and the other end is connected to other modules on the image processor. The NiosII soft core is embedded in the large-scale programmable device, and the control module of the PCI bus is added as the peripheral hardware of the soft core. Its programmability improves the tailorability of the system and reduces the cost of system development.
Description
technical field [0001] The invention relates to a PCI adapter for an image processor, in particular to a SOPC technology-based PCI bus adapter with good scalability and tailoring. Background technique [0002] In the 1990s, a field programmable device (FPGA) with a high degree of large-scale integration appeared, and the continuous improvement of FPGA support tools increased the speed of embedded system design based on FPGA chips, and an embedded system EDA based on FPGA appeared. Platform, in a popular sense, its appearance makes it possible to design embedded systems based on FPGA. In recent years, with the introduction of the concept of Programmable System on Chip (SOPC), the method and connotation of embedded system design have been promoted from both software and hardware; and the introduction of NiosII soft core has satisfied the requirements of embedded systems for both soft and hard cores. Programmable requirements, so embedded system technology has also entered the...
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IPC IPC(8): G06F13/40
Inventor 王卓磊陆亨立吴颐玲范天翔郭众磊杨辉
Owner SHANGHAI UNIV