A FPGA emulator switching device and method

A switching device and emulator technology, which is applied in the direction of instruments, pulse technology, electronic switches, etc., can solve the problems of easy damage of the download port and inconvenient use, and achieve the effect of reducing the number of times of plugging and unplugging and the probability of easy damage

Active Publication Date: 2021-01-26
CHENGDU AEROSPACE COMM EQUIP CO LTD
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for digital circuits, in order to prevent the impact of static electricity on the FPGA when plugging and unplugging the downloader, it is necessary to power off the board before switching operations, and the download port of the emulator is easily damaged by repeated plugging and unplugging, which is very inconvenient in use

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A FPGA emulator switching device and method
  • A FPGA emulator switching device and method
  • A FPGA emulator switching device and method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0029] Such as figure 1 shown and figure 2 Shown, a kind of FPGA emulator switching device comprises the shell of switching device and intermediate conversion module; Described shell is provided with input port and more than two output ports; Select the corresponding relationship between the port and the output port; it also includes more than two output port connection indicator lights, which correspond to the output port one by one;

[0030] In this specific embodiment, there is one input port, and the switching button controls the intermediate conversion module to select the output port corresponding to the input port.

[0031] For the FPGA emulator, the input port includes 6 input test pins of VCC, GND, TMS, TCK, TDO and TDI; the IO port on the intermediate conversion module is connected to the 4 pins of TMS, TCK, TDO and TDI of the input port, The VCC and GND of the intermediate conversion module are connected to the VCC and GND pins of the input port respectively, and...

specific Embodiment 2

[0033] A kind of FPGA emulator switching device, comprises the shell of switching device and intermediate conversion module; Described shell is provided with input port and more than two output ports; Also comprises switching key, is used for controlling intermediate conversion module, input port and output Select the corresponding relationship between the ports; it also includes two or more output port connection indicator lights, which correspond to the output ports one by one;

[0034] The input port includes n, the output port includes n, and the n≥2; it also includes, the input port is connected to the indicator light, which corresponds to the input port one by one; the switching button controls the middle switching module to select a single input port and a single The connection connection relationship between the output ports, the one-to-one connection connection relationship between the actually used m input ports and the m output ports, and the connection connection re...

specific Embodiment 3

[0038] On the basis of the specific embodiment 2, there are 4 input ports and 4 output ports. In this specific embodiment, the intermediate conversion module realizes 18 different connection modes of 4 input ports and 4 output ports: A. Only input port 1 is connected to output port 1, B. Only input port 1 is connected to output port 1. Output port 2 is connected, C. Only input port 1 is connected to output port 3, D. Only input port 1 is connected to output port 4, E. Only input port 2 is connected to output port 1, F. Only input port 2 is connected to output port 2 is connected, G. only input port 2 is connected with output port 3, H. only input port 2 is connected with output port 4, I. only input port 3 is connected with output port 1, J. only input port 3 is connected with output port 2 , K. Only input port 3 is connected to output port 3, L. Only input port 3 is connected to output port 4, M. Only input port 4 is connected to output port 1, N. Only input port 4 is connect...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a switching device and method for an FPGA emulator, comprising a shell and an intermediate conversion module; the shell is provided with an input port and more than two output ports; it also includes a switch button to control the intermediate conversion module, and the input port and the output port The corresponding relationship is selected; more than two output ports are connected to the indicator lights, which correspond to the output ports one by one; when there is one input port, the switch button controls the intermediate conversion module to select the output port corresponding to the input port; the input port includes n, and the output port There are n ports, when n≥2; the connection indicators of the input ports correspond to the input ports one by one; the switch button controls the middle switching module to select the connection correspondence between a single input port and a single output port, and the m input ports actually used One-to-one connected connection relationship with m output ports, and none connected connection relationship. The number of plugging and unplugging of the FPGA board interface and the plugging and unplugging of the emulator is reduced, and at the same time, the probability of easy damage due to multiple plugging and unplugging of the download port of the emulator is reduced.

Description

technical field [0001] The invention relates to the field of communication emulation switching devices, in particular to an FPGA emulator switching device and method. Background technique [0002] With the gradual development of digital circuits, FPGA has been used more and more due to its powerful online programming capability. In the use of FPGA, code download and online debugging are usually completed by connecting the emulator through the USB interface of a general-purpose computer. However, one USB port of a computer can only be connected to one emulator corresponding to the download port of one FPGA, so for boards with multiple FPGAs, the following two methods are usually used to realize the code download and online debugging functions: 1. Multiple emulators perform code download and online debugging for each FPGA; 2. One emulator is used multiple times, and the code download and online debugging for multiple FPGAs can be realized by plugging and unplugging back and f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H03K17/00H03K17/22G06F13/40
CPCG06F13/4022H03K17/007H03K17/22
Inventor 武昕坤杨露王玉鹏张琴刘兵徐龙曾超孟超王仕明
Owner CHENGDU AEROSPACE COMM EQUIP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap