使用ST标准库，加载uC/OS II,添加3个任务，通过串口输出CPU使用率的C源代码。CPU为STM32F103RBT6，串口为USART1-Using the ST standard library, add uC/OS II, add three missions, through the serial output of CPU utilization of C source code. CPU is STM32F103RBT6, serial for the USART1

Code samples for accessing USART.

基于STM32F103RC的中控控制代码，完整的代码注释，可定时控制继电器关机，一键开机，串口通信，IIC音量控制，完整的Keil uVision5工程，使用ucos系统创建，按钮、串口、看门狗任务(STM32F103RC based central control code, complete code annotation, timer control relay shutdown, one button start, serial communication, IIC volume con