//115.2k串行口通信程序，校验方式为简单双向校验, //而且是必要的，因为任何采用中断、crc等的方法 //均很难保证速度和避免错误. //总体速度5KB/秒 //单片机程序 //使用22.1184晶振-/ / 115.2k serial port communication procedures and testing methods for the simple two-way check, / / it is necessary, because any interruption used, the method crc / / it is very difficult to ensure speed and avoid mistakes. / / Overall speed 5KB / s / / MCU procedures / / crystal use 22.1184