Open Access1553B self-check abnormal analysis of a certain computer
Author(s) -
Yongchao Wang
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1634/1/012045
Subject(s) - firmware , computer science , static random access memory , embedded system , microcode , computer hardware
During the factory test of a certain computer, the 1553B self-test is abnormal. Through the analysis, it is found that the RAMLB signal pin constraint error in the FPGA firmware caused the failure. In the case of a certain difference in the characteristics of the chip, the 1553B extended SRAM storage function is unstable, and the existing drivers and applications use the extended storage area, which eventually leads to unstable communication. This problem was solved by modifying the 1553B driver. The research in this paper enriches the research of computer 1553B communication and provides theoretical support and basis for subsequent development, design, and solving practical problems.