A low cost design of MIL-STD-1553 devices

This paper suggests a low cost design of MIL-STD-1553 bus terminal devices used in various Avionics and Aerospace applications. The design involves the implementation of MIL-STD-1553 bus core functionality on Digital Signal Processor (DSP) having on chip Multichannel Buffered Serial Port (MCBSP). The DSP acts as a host processor and MIL-STD-1553 bus compliant packet generator. Device specific software and the hardware design technique adopted to interface MCBSP with bus transceiver have also been discussed. With the successful implementation of the idea the terminal device host processor (DSP) could be used for performing all the necessary functions of 1553A/B protocol eradicating the need of a dedicated and an expensive bus core IC, parallel I/O lines and different control logic ICs. The work proves to be a low cost and reduced hardware design for 1553A/B based devices in Avionics and Aerospace systems.