Need help on "fixed-point arithmetic"

[yzou_ua]

I need to achieve following, using PIC24: What should i do??

A 16.16 fixed-point(f-p) # can be divided by a 16.16 f-p # w. the result a 24.8 f-p #.

 

[bobcat1]

Hi

All you have to do is to multiply the floating value by a 4096 (2^12) do your math and divide the result by 4096

The best way to that is to multiply & divide by 2^15(standard called Q15) but some controller will find it difficult to handle large numbers(8 & 16 bit type)

All the best

Bobi

The microcontroller specialist