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The method to solve the problem of video adc chip single event flipping and locking

A particle flip, single chip technology, applied in the parts of color TVs, parts of TV systems, TVs, etc., can solve the problem that the image data cannot be output normally, and achieve the effect of reducing the requirements

Active Publication Date: 2020-06-26
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems in the background technology and realize that the ADC chip can perform troubleshooting when a single event flip or lock occurs, and achieve the purpose of self-repair, the present invention provides a system and method for solving the single event flip and lock problem of the video ADC chip
[0008] For the case of single event flipping, the method of cyclically refreshing the register is used to solve the problem that the image data cannot be output normally due to the single event flipping of the register

Method used

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  • The method to solve the problem of video adc chip single event flipping and locking
  • The method to solve the problem of video adc chip single event flipping and locking

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Embodiment Construction

[0042] The following pairs are combined figure 1 , figure 2 The method of the present invention is further introduced:

[0043] Such as figure 1 As shown, the system is mainly composed of CCD detector, FPGA chip, ADC chip, power chip and CAMERALINK interface chip. The FPGA chip provides drive signals for CCD detectors and ADC chips, and provides enable signals for power chips;

[0044] The analog signal output by the CCD enters the ADC chip for digital-to-analog conversion into a digital signal, and the digital signal output by the ADC enters the FPGA for formatting, and the FPGA transmits the final image data to the computer through the CAMERALINK interface chip for display. Among them, the ADC chip adopts ADDI7004, the power chip adopts MPD23797, the FPGA chip adopts XC7A100T, and the CAMERALINK interface chip adopts DS90CR287.

[0045] The present invention adopts above-mentioned system, and the method step of carrying out is as follows, and following steps run in FPGA...

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Abstract

The invention relates to a system and a method for solving the problem of single-event flipping and locking of a video ADC chip. Realized self-healing when the ADC chip has a single-event flip or lock-up problem. The system includes a CCD detector, FPGA chip, ADC chip, power supply chip and CAMERALINK interface chip; this function is realized by executing the following steps in the FPGA chip: [1] determine key parameter values; [2] power on the system, The registers of the ADC chip are refreshed regularly; [3] The first fault judgment; [4] The first fault processing; [5] The ADC chip continues to work, and the registers of the ADC chip are refreshed regularly; [6] The second time Fault judgment; 【7】Second fault handling.

Description

technical field [0001] The invention relates to a system and a method for solving the problem of single-event flipping and locking of a video ADC chip. Background technique [0002] The ADC chip is one of the most important devices in the CCD camera, and it is responsible for converting the analog signal output by the CCD into a digital signal. The work of the ADC chip is mainly divided into two parts: sampling and quantization. [0003] At present, the ADC chips used in CCD cameras have more and more functions, and their performance indicators are getting higher and higher. When in use, it is often necessary to configure a large number of parameters into the registers of the ADC chip, which makes the ADC chip working in a harsh environment prone to failure, such as the occurrence of single event effects. [0004] The single event effect refers to a radiation effect that causes abnormal changes in the state of the device when a single high-energy particle passes through th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/372H04N5/225
CPCH04N23/54H04N25/71
Inventor 孔亮陈小来刘永征闫鹏温志刚魏文鹏刘文龙周冠张昕
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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