Wireless JTAG to USB Emulator Architecture

Abstract

In today's aviation industry, the production of avionic equipment that adheres to the compulsory standards for both military and civilian avionic systems is essential. For this reason, as a result of various studies carried out within the scope of the application of the relevant standards to avionic equipment, additional labor and financial expenditures are needed by the manufacturers. It is necessary to provide access to the programmable integrated circuits of the relevant avionic equipment in order to change the configurations of these avionic equipment. This implies that the avionic equipment needs to be opened, physically. This situation leads to the re-application of some test practices included in the standards related to environmental conditions and tests such as MIL-STD-160 and DO-160, to which the aircraft is subject, to the aforementioned avionic equipment. Thus, the repetition of many test procedures previously specified as a requirement by the standard occurs. As a result of the repetition of these tests, it is inevitable that extra labor and financial expenses arise. The fact that the relevant workforce and expenditures are made within the scope of avionic equipment whose design and production process has been completed cause manufacturers not to provide the necessary importance and financial contribution to their new projects. In order to eliminate these problems, within the scope of the subject of the paper, a design architecture that will enable the configuration update of the programmable integrated circuit with Joint Test Action Group (JTAG) interface using JTAG to Universal Serial Bus (USB) converter integrated circuit via Wi-Fi has been created. In addition, studies to ensure the security of the wireless network to be used within the scope of the related design architecture are also mentioned. This design architecture allows configuration updates to be made over the secure network without opening avionic equipment physically, eliminating the expected additional labor and financial costs.