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Method for mutually converting CoaXPress interface data and Cameralink interface data

An interface data, mutual conversion technology, applied in data conversion, code conversion, electrical digital data processing and other directions, can solve the problems of low readout rate, slow readout, etc., to achieve the effect of small FPGA resource utilization

Pending Publication Date: 2022-01-28
西安应用光学研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can only be read slowly by RS422, and the read rate is low, so it is not suitable for occasions with high real-time requirements

Method used

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  • Method for mutually converting CoaXPress interface data and Cameralink interface data
  • Method for mutually converting CoaXPress interface data and Cameralink interface data
  • Method for mutually converting CoaXPress interface data and Cameralink interface data

Examples

Experimental program
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Effect test

Embodiment 1

[0072] The purpose of this embodiment is to solve the problem of mutual conversion between CoaXPress and Cameralink interfaces, and to realize the interconnection and real-time transmission between two different interface devices. Xilinx Kintex-7 series FPGA is used as the main control logic element to carry out logic control on the reception and transmission between the two interfaces. The CoaXPress decoding chip is responsible for the conversion and reception of LVDS data to parallel data, and the CoaXPress encoding chip is responsible for the conversion and transmission of parallel data to LVDS serial data; the Cameralink decoding chip is responsible for the conversion and reception of LVDS data to parallel data, and the Cameralink encoding chip is responsible for parallel data Conversion and transmission to LVDS serial data. The invention can realize the conversion of the input data of the CoaXPress interface to the output data of the Cameralink interface, or the conversio...

Embodiment 2

[0078] The present embodiment provides a kind of Cameralink data interface and CoaXpress data interface mutual conversion method, and it comprises the following steps:

[0079] Step 1: The upper computer software configures the conversion mode through RS232;

[0080] Step 2: Convert Cameralink interface data to CoaXPress interface data;

[0081] Step 3: Convert CoaXPress interface data to Cameralink interface data.

[0082] Wherein said step 1 includes the following sub-steps:

[0083] The whole system is powered by DC 5V. After the system is powered on, the upper computer software communicates with the FPGA through the RS232 serial port, and the RS232 uses a DB9 connector. Configure the data input and output flow direction on the host computer interface, select CoaXPress as the input interface, and Cameralink as the output interface, then set the working mode as CoaXPress to Cameralink; select Cameralink as the input interface, and CoaXPress as the output interface, then s...

Embodiment 3

[0095] The present embodiment provides a kind of mutual conversion method of high-speed CoaXPress interface data and high-speed Cameralink interface data, and it comprises the following steps:

[0096] Step 1: The upper computer software configures the conversion mode through RS232;

[0097] Step 2: Convert Cameralink interface data to CoaXPress interface data;

[0098] Step 3: Convert CoaXPress interface data to Cameralink interface data.

[0099] Wherein, said step 1 includes the following sub-steps:

[0100] 1.1 After the system is powered on, start the host computer software and communicate with FPGA through RS232;

[0101] 1.2 Configure the input and output flow of data, and select the corresponding interface;

[0102] 1.3 For typical video formats, start this working mode directly;

[0103] 1.4 For uncommon video formats, set its pixel clock, resolution, and working timing, and then start the working mode;

[0104] Wherein, said step 2 includes the following sub-ste...

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Abstract

The invention belongs to the technical field of high-speed data transmission, and particularly relates to a method for mutually converting CoaXPress interface data and Cameralink interface data. The method comprises the steps that 1, upper computer software configures a converted working mode through RS232; 2, the Cameralink interface data is converted into CoaXPress interface data, and the CoaXPress interface data is converted into CoaXPress data; 3, the data of the CoaXPress interface is converted into the data of the Cameralink interface. According to the method, a working mode is configured through an upper computer, logic control between different interface time sequences is achieved through an FPGA, data conversion at different rates between an input device of a CoaXPress interface and an output device of a Cameralink interface can be achieved, or data conversion at different rates between the input device of the Cameralink interface and the output device of the CoaXPress interface can be achieved; and interconnection and intercommunication between the two interfaces are achieved.

Description

technical field [0001] The invention belongs to the technical field of high-speed data transmission, and in particular relates to a method for mutual conversion of CoaXPress interface data and Cameralink interface data. Background technique [0002] With the requirements of high-speed signal processing in the field of machine vision, especially the development of high-resolution, large-array CCD and CMOS devices, the bandwidth requirements for data transmission are increasing. In the past 20 years, most high-resolution cameras and photoelectric acquisition equipment have adopted the Cameralink transmission standard. The maximum transmission bandwidth of the Full mode is 6.8Gbps, and the maximum transmission distance of the wire is 10 meters. For optoelectronic equipment with higher speed and bandwidth requirements, the traditional Cameralink interface can no longer meet the demand. To this end, six companies including Adimec and EqcoLogic in the field of machine vision join...

Claims

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Application Information

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IPC IPC(8): G06F5/16G06F5/10G06F15/78
CPCG06F13/124G06F13/1673G06F13/4204G06F13/4291H03M9/00H04N5/765
Inventor 张旭旭段文博石凯李磊郭城王怡恬周新妮稽婷
Owner 西安应用光学研究所
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