功能强大的时钟中断，单片机和FIFO的接口和操作，单片机串口编程问题，纯软件单片机串口，串口通信的单片机程序，程序的多任务和资源复用举例，采用软件定时的计算方法-powerful clock interruption, the 8031 and FIFO interface and operation, the 8031 serial programming, software-only MCU, the MCU serial communication procedures, the proc

原创，STM32F103R8T6为控制器，芯片内部的实时时钟以0.5秒1次向串口发送数据，串口使用了软件FIFO，使用了UCOSII系统，编译环境IAR5.20-Originality, STM32F103R8T6 for the controller, the chip' s internal real time clock to 0.5 seconds one time sending data to the serial port, serial use of a software