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Field programmable gate array (FPGA) based high-speed peripheral component interconnect (PCI) data acquisition card with inset USB debugging module

A technology for debugging modules and acquisition cards, applied in instruments, electrical digital data processing, etc., can solve problems such as poor practicability, and achieve the effects of high-precision acquisition and conversion, high-speed and high-anti-interference transmission

Inactive Publication Date: 2015-11-18
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiency of poor practicability of existing high-speed PCI data acquisition cards based on FPGA, the present invention provides a high-speed PCI acquisition card based on FPGA with embedded USB debugging module

Method used

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  • Field programmable gate array (FPGA) based high-speed peripheral component interconnect (PCI) data acquisition card with inset USB debugging module
  • Field programmable gate array (FPGA) based high-speed peripheral component interconnect (PCI) data acquisition card with inset USB debugging module
  • Field programmable gate array (FPGA) based high-speed peripheral component interconnect (PCI) data acquisition card with inset USB debugging module

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Embodiment Construction

[0023] refer to Figure 1-2 . The FPGA-based high-speed PCI acquisition card embedded with a USB debugging module includes an A / D sampling module, an FPGA processing chip, a PCI bus transmission module and a USB debugging module.

[0024] The A / D sampling module is composed of a peripheral interface, an analog switch, an operational amplifier and an A / D conversion chip. Its function is: under the cooperation of the FPGA processing chip, complete the cyclic acquisition of 16 channels of analog signals and send the collected data to the FPGA processing chip.

[0025]The specific composition of the A / D sampling module is as follows: the peripheral interface is a DB37 connector, of which 16 pins are for analog signal input, and the rest are analog grounds to reduce crosstalk between channels. Connect 16 channels of analog signals to the corresponding input pins of the analog switch. The analog switch adopts the ADG1406 chip, and the analog signal output by the analog switch is c...

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Abstract

The present invention discloses a field programmable gate array (FPGA) based high-speed peripheral component interconnect (PCI) data acquisition card with an inset USB debugging module to solve the technical problem that the existing FPGA based high-speed PCI data acquisition card is poor in practicability. The technical scheme is that the FPGA based high-speed PCI data acquisition card comprises an analog-to-digital (A / D) sampling module, an FPGA processing chip, a PCI bus transmission module and a USB debugging module. Signals enter the FPGA processing chip through the A / D sampling module, and the FPGA processing chip transmits data into a dual-port RAM1 and a dual-port RAM2. The PCI bus transmission module converts address information into electrical level information, and transmits the electrical level information into the dual-port RAM1 of the FPGA processing chip. The USB debugging module converts the serial address information into parallel address information, and transmits the parallel address information into the dual-port RAM2 of the FPGA processing chip. The FPGA based high-speed PCI data acquisition card can finish the debugging of the A / D sampling module and the FPGA processing chip without startup and shutdown as well as insertion and extraction of the acquisition card, and has strong practicability.

Description

technical field [0001] The invention relates to an FPGA-based high-speed PCI data acquisition card, in particular to an FPGA-based high-speed PCI acquisition card embedded with a USB debugging module. Background technique [0002] In the field of automatic measurement and control, with the acceleration of the industrialization process, the requirements for the development cycle of the measurement and control system are getting higher and higher, and the length of the development cycle of the acquisition system will definitely affect the entire measurement and control system. How to ensure the rapid completion of systematic debugging and development in the case of high-speed and high-precision acquisition is becoming more and more important. [0003] In the acquisition system based on industrial computer and acquisition card, there are two types of acquisition cards commonly used: high-speed acquisition card based on USB bus and high-speed acquisition card based on PCI bus. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40
CPCG06F13/4081
Inventor 袁朝辉付盛坤张欣恺霍常春
Owner NORTHWESTERN POLYTECHNICAL UNIV