Havacılık Uygulamaları İçin Kısmi Dinamik Donanım Şekillendirme ve Üçlü Modül Yedekleme Kullanılarak Hata Toleranslı FPGA Tasarımı
Özet
In this thesis, methods for detecting, correcting, and masking the effect of radiation-induced single-bit errors in aerospace applications are proposed. In order to detect the error, the method of continuous reading of the configuration memory by the design itself was used. Partial dynamic reconfiguration is used to correct the error. The incorrect configuration memory frame has been corrected by reconfiguration. The triple module redundancy method is used to mask the error. After correcting the error, not only the structural integrity, but also the state integrity is maintained. The architecture was tested by injecting an error on ARINC-429 protocol. The results showed that in the worst case, the single bit upset is corrected within approximately 67ms. Critical errors that could not be corrected could not be created, but statistical calculations are made. It is seen that the probability of error is approximately 200 thousand times less than when the proposed system is not used. In the error injection test, all errors occurred on triple redundant ARINC-429 modules could be masked. It was not possible to create errors that could not be masked, but statistical calculations were made. It was measured that the triple module redundancy method uses approximately 3.3 times more FPGA space. It was measured that area of the circuit used for error detection and correction in the system is approximately one in two thousand of the whole FPGA area. It is seen that the proposed system is fault tolerant against single bit errors.
