基于51单片机的SPI总线

单片机与其它芯片或设备之间的数据传输在单片机的应用中具有重要的地位，单片机本身的数据传输接口过去主要为8位并行数据接口或异步串行通信接口，但电子技术的迅速发展使得许多新的数据传输接口标准不断涌现，大多数的51单片机并没有在硬件中集成这些新的数据传输接口。

-51 MCU SPI bus based microcontroller chips or other devices with data transfer applications in the microcontroller has an important position, the microcontroller itself, the data transmission interface in the past mainly for 8-bit parallel data interface, or asynchronous serial communication interface, but the electronic The rapid development of technology makes a lot of new data transmission interface standards continue to emerge, most of the 51 single-chip hardware did not integrate these new data transfer interface.