bulk endpoint endless source/sink firmware. EP2OUT will always accept a bulk OUT EP4OUT will always accept a bulk OUT EP6IN will always return a 512 byte packet. The packet contains an incrementing byte starting at 0x02. Since EP6 alway

用SINK插值的方法对数据进行插值处理，有效解决数据少的问题。-SINK interpolation method for interpolating the data processing, data less effective solution to the problem.