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