基于MC908QY4的LIN从站通信例程，采用普通I/O和定时器捕捉实现LIN通信时序的模拟，底层代码为汇编语言以实现较高的执行效率。-MC908QY4 based on the LIN slave communications routines, the use of general I/O and timer capture LIN communication timing to achieve the simulation, the underlying code for the asse