What is a DSP chip and its characteristics?

First of all, we must understand what is fixed-point operation and what is floating-point operation.

You need to know how the DSP chip handles decimals.

This involves calibration of decimals. The precision of numerical value and the range of numerical value become a pair of contradictions.

Barabara, it's a little long, so let's not talk about it.

You should know that the DSP supporting floating-point operation is a floating-point DSP chip, and decimal operation can be freely performed on this chip.

However, the decimal operation cannot be performed directly on the fixed-point DSP, and the numerical value needs to be calibrated first, and the decimal point cannot be moved.

Therefore, when the fixed-point DSP completes decimal operation, the programming is a little more complicated. The speed is definitely not as fast as floating-point film.

Since floating point is good! Then it must be expensive, too 28 12 (fixed point) 80 yuan 28335 (floating point) 100 yuan.