A system and method for implementing online testing by using a downloader for multi-frame image transmission

Abstract

An online test system and method using a downloader for multi-frame image transmission. The system is composed of a host computer, a programmable device FPGA, a JTAG downloader and a DDR2 memory. The test method mainly consists of two steps: the first step, the data image Transfer to DDR2 memory. Through the programmable device development software in the upper computer, the image data is input into the FPGA by the downloader JTAG, and written into the DDR2 memory by the FPGA. In the second step, the data image is input to the FPGA at high speed, and written into the image algorithm function module as a data source for verification and testing. The invention realizes the universality of different image sizes as the data source transmission mode, solves the problem that the verification of the image algorithm function module cannot be realized when the data source is not in place, and improves the efficiency of the imaging circuit test work.

Description

Technical field [0001] The present invention relates to an online test system and method for multi-frame image transmission using a downloader. Background technique [0002] At present, the remote sensing camera imaging system has put forward more and more demand on the image algorithm function module. In remote sensing electrical circuitry, programmable device FPGA is the main carrier currently implemented imaging function, and image algorithm functions are integrated into FPGAs as modules. The image source is provided by other circuits of the imaging system, typically, after the two-sampling signal, the analog signal is dual sampling signal, the image algorithm for the image algorithm function module input to the FPGA is input to the FPGA. Features. Verify testing is an important part of the remote sensing camera imaging system workflow. The time specific gravity can reach 50%, and the test work of each module will affect the progress of the entire project. [0003] The verific...

AI Technical Summary

Problems solved by technology

[0005] (2) If the image simulation source is completed too late, the image algorithm function verification and testing work cannot be carried out in time

[0006] (3) The test independence of the image algorithm function. During the testing process of the imaging system, if there is a problem, it cannot be ruled out that the error of the image input source leads to the abnormal function of the image algorithm.

[0007] (4) Due to the limitation of the image input source, if the image input format changes, the image simulation source needs to be re-tested, and the flexibility is not high

Images