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SPI是一种简单高速的通信接口。文章简要地介绍了使用F240的SPI同步通信接口的硬件设计和软件算法。该系统满足了试飞数据下载对通信速率的要求,成本低、速度快。在同步通信系统设计中具有典型性和实用性。
SPI is a simple high-speed communication interface. The paper briefly introduces the hardware design and software algorithm of SPI synchronous communication interface using F240. The system meets the flight test data download requirements of the communication rate, low cost, fast. In synchronous communication system design is typical and practical.