用三个线程序来完成串口数据的接收，其实就是第一种方法的变种：



一个侦听EV_RXCHAR,



一个对EV_RXCHAR进行分析，其实就是超时判断。如果接收到一个消息后，一段时间没收到下一个EV_RXCHAR，就认为是一个数据包的结束。这个线程就会通知数据接收线程，进行数据接收。一般同一包数据，两个字符之间的时间间隔，应该很小了吧，而两个数据包之间的间隔，应该不会太小吧！（这个地方我不清楚，猜的:( :) ）



最后一个线程，是接收数据的。-Process to complete with three wire serial data reception, in fact, the first method is a variant: a listener EV_RXCHAR, an EV_RXCHAR analysis, is actually out to judge. If you receive a message, the time it did not receive the next EV_RXCHAR, that is a data packet to the end. This thread is to inform the data receiver thread to receive data. Generally the same packet data, the time interval between the two characters should be small the bar, and the interval between two data packets, should not be too small for it! (This place I do not know, guess: (:)) The last thread is receiving data.