How to change the real_T in generated C code to be float type?

Hi, I am now using Matlab2015b. I use the Code Generation of simulink to convert the algorithm inside Matlab Function into C code. In the generated code, I found that the real_T is float, as shown below

typedef doulbe real_T;

However, I hope that real_T could be float, so that the calculation time needed inside my ARM chip could be saved a lot.

I know that one method is specifying every variable with single() function, but there are so many variables inside my algorithm. So is there some other better methods? Thank you.

Answer 1

[Rami Al Halabi]

have you tried replacing double by float in that typedef statement?

typedef float real_T;

[Yunlong Wang]

Hi Rami, thank you. I have done that. I works well, but I have to modify the generated code each time after code generation. Is there some other better methods?

[Rami Al Halabi]

No problem. Not sure if there is a setting in matlab that allows you to specify whether you want single or double precision. If you find any, please share it here :)