增加ASCII.C的一个ASCI码(7F)，用于虚拟按键用修改UART串口的命令解解析程序源码，修改RTC的pcf8563中断部分。精简IIC与smart 可直接使用。 -Increase ASCII.C an ASCI code (7F) for virtual key solution to modify the UART serial port command parser source code, modify the RTC interrupt pcf8563 part. Stre

the project stm32+iic+PCF8563 for person to use the pcf8563 to make RTC clock-The project is designed for stm32+iic+PCF8563.

首先 通过模拟IIC接口，往RTC寄存器中写一个预设时间，再通过模拟IIc读取RTC寄存器中的时间，观察秒钟的变化情况。(First, through the analog IIC interface, to the RTC register to write a preset time, and then through the simulation IIc read RTC register time, observe the sec)