按照一定规则生成满足一定长度的训练数据，并把该数据的每个符号及下标分别存储到两个文件中，用于以后多次读取-According to certain rules to generate training data satisfy certain length, and sends the data to each of the symbols and subscr ipts are stored in the two files for subsequent read many times

s3c2440通用异步触发器提供3个独立的异步串行I/O，在CPU和UART之间传输数据时UART可以产生中断或DMA请求-s3c2440 universal asynchronous trigger provides three independent asynchronous serial I/O, UART can generate an interrupt or DMA request to transfer data between the CPU and the UART