本程序实现算术平均值滤波（采样值为8位，连续采样数目小于256) 入口参数：采样值数据块首地址在SADR中，连续采样数在W中 出口参数：滤波值在SOU中.-Arithmetic mean of the filter program (value of sample 8, the number of consecutive samples is less than 256)　import parameters: the first sample value of the data block address in the SADR, the continuous sampling of a few in the W　export parameters: filter values in SOU .