一个SPI的实例，通过SPI实现两机通讯， 采用中断方式实现双全工通讯。 本例用两MEGA8515实现，C语言版本-an example, the SPI communication between the two machines used interruption means full-duplex communication. The two cases with MEGA8515 achieve, C languag

STC12C/LE54xx系列单片机SPI(互为主从)(中断方式)例程,官方C语言例程-STC12C/LE54xx Series MCU SPI (interaction from) (interrupt) routines, the official C language routines

改程序描述SD08（A12）的SPI通信，分别实现了主从模式和1字节传输到16字节传输的不同方法，分别使用中断和查询两种接收方式-Change the program descr iption SD08 (A12) of SPI communication, respectively, to achieve the main transmission mode and 1 byte to 16-byte transmit differ