DSP处理器可以分为两大类:定点和浮点。一般说来,先进的定点DSP家族速度快,功耗低,价格也便宜;而浮点DSP则计算精确,动态范围大。设计师在设计DSP时,如果对于设计的应用仅仅要求它具备很少的浮点功能时,则往往陷入了十分尴尬的困境,通常的解决办法是勉强采用价格高的浮点DSP设 DSP processors can be divided into two categories: fixed-point and floating-point. In general, the advanced fixed-point DSP family of fast, low power consumption, the price is cheaper; and floating point DSP is calculated accurately, the dynamic range. Designers often find themselves in a dilemma when designing DSPs that require only a few floating-point functions for their application, and the usual solution is to force the use of expensive floating-point DSPs