主要介绍TYPEA 协议的初始化和防冲突的主流程，希望对学习者有帮助。-introduce TYPE A protocal initialization and anti-collision main flow, hope to help beginner to learn TYPEA.

BCM的遥控接收软件 1、由主CPU的RF_IN发高电平进入学习状态，低电平退出学习状态 2、学习完成1pcs遥控器，由RF_OUT返回1脉冲给主CPU 3、工作时收到有效遥控信号时，由RF_OUT返回主CPU按键盘值数据，为4bit-BCM remote control software 1, the main RF_IN of the CPU to enter the learning state of high level, low level of learning s