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Downloading device for field-programmable gate array logical code

A technology of programming logic and gate array, applied in the direction of instrumentation, electrical digital data processing, etc., can solve the problems of slow logic code rate and poor stability, and achieve the effect of controllable download rate, stable work, and real-time display of download status

Active Publication Date: 2014-05-28
INST OF ELECTRONICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the downloading device for the field programmable gate array of the prior art is a downloading device based on a parallel port (LPT port, also known as a printer interface). relatively poor sex

Method used

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  • Downloading device for field-programmable gate array logical code
  • Downloading device for field-programmable gate array logical code
  • Downloading device for field-programmable gate array logical code

Examples

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Embodiment Construction

[0019] In order to make the technical solution of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] figure 1 It is a circuit schematic diagram of a field programmable gate array logic code downloading device of the present invention. The device is composed of a computer, a USB interface, a USB protocol converter, a crystal oscillator, a JTAG download interface module, and a system controller, wherein: the computer receives The serial working status information of the Field Programmable Gate Array (FPGA) conforming to the USB protocol outputs the logic code of the Field Programmable Gate Array; The serial working status information of the field programmable gate array outputs 5V voltage signal to the power converter; the power converter is connected to the USB interface and converts the voltage signal into two voltage signals for the USB protocol converter and system controller power s...

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Abstract

The invention discloses a downloading device for a field-programmable gate array logical code. The device consists of a computer, a USB (universal serial bus) interface, a USB protocol converter, a crystal oscillator, a JTAG (joint test action group) downloading interface module and a system controller, wherein the USB interface is connected with the data terminal of the computer; a power adapter is connected with the USB interface; the USB protocol converter is connected with the USB interface and the system controller; the system controller is respectively connected with the USB protocol converter, the crystal oscillator and the JTAG downloading interface module; the JTAG downloading interface module is connected with the system controller. According to the downloading device for the field-programmable gate array logical code, which is disclosed by the invention, a FPGA (field-programmable gate array) device is subjected to logical code downloading in the JTAG mode via the USB interface. According to the device, the downloading rate is adjustable when the FPGA logical code is downloaded, the working state of the FPGA device and the logical code downloading progress can be monitored while downloading.

Description

technical field [0001] The invention relates to the technical field of field programmable gate array (FPGA) downloading, in particular to a technology for downloading logic codes to FPGA through a USB interface in a JTAG (International Standard Test Protocol) mode. Background technique [0002] The logic function realized by the field programmable gate array device is determined by programming and downloading by the user, and a special logic code downloading device is required for programming the field programmable gate array device. At present, the downloading device for the field programmable gate array of the prior art is a downloading device based on a parallel port (LPT port, also known as a printer interface). sex is relatively poor. With the rapid development of computer hardware technology, computers produced in recent years seldom have parallel ports, and instead have convenient and efficient USB ports. Contents of the invention [0003] (1) Technical problems t...

Claims

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Application Information

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IPC IPC(8): G06F13/40G06F13/42
Inventor 胡凯杨海钢徐春雨曾宪理王德利
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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