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1553B总线在航天领域应用越来越广泛,已成为星载有效载荷数据传输的主要途径。为了实现星载有效载荷通过1553B总线传输指令和科学实验数据,选用了以TI公司DSP芯片SMJ320VC33为控制器、DDC公司BU65170为通讯芯片的设计方案。采用本设计方案的有效载荷具有接口简单、通讯速度快、可靠性高的特点,并已在某星载有效载荷中成功应用,效果良好,对星载1553B总线RT(远置终端)设计具有重要的指导和参考意义。
1553B bus is more and more widely used in aerospace field and has become the main way of data transmission of on-board payload. In order to achieve satellite payload through 1553B bus transfer instructions and scientific experimental data, the selection of the TI company DSP chip SMJ320VC33 controller, DDC company BU65170 for the communication chip design. The payload with this design scheme has the characteristics of simple interface, fast communication and high reliability, and has been successfully applied in a spaceborne payload with good effect and is important for the design of onboard 1553B bus RT (remote terminal) The guidance and reference significance.