产生编码解码时使用的clk_1以及频率为它31倍的clk_31信号。

//产生M序列的发送信号indata(随机),并且将接收到的解码信号（decode）进行比较。

//发送的头10个信号为1，第11个为0，在解码的开始时期进行同步判断时用到。-Have used codec clk_1 as well as the frequency of 31 times it clk_31 signal.// Generate the M sequence signal indata (random), and will receive the signal of the decoder (decode) to compare.// Send the first 10 months of the signal for 1, 11 to 0, in the decoder to synchronize the beginning of the period used to determine when.