Kinetis Design StudioのトピックRe: Problem with "roundf" function in KDS

Problem with "roundf" function in KDS

sreeramadhanala — Wed, 30 May 2018 14:31:42 GMT

We are using Kinetis design studio version 3.2 for our application. In this IDE we are facing a problem with "roundf" of math library function.(explained in below)

float val = 14.98967;

float C_val = 0;

C_val = roundf(val*100)/100; // Round off the value with two decimal places

the result for the above function in Code warrior is C_Val = 14.9900

But in KDS : C_Val = 14.9899998;

Is there any other method in KDS to get the value same as in Code warrior ?

Please suggest...

Regards

Dhanalakshmi

Re: Problem with "roundf" function in KDS

Alice_Yang — Wed, 20 Jun 2018 07:45:31 GMT

Hello Sreerama Dhanalakshmi ,

I test on KDSv3.2 with FRDM-K64 board, the data also 14.9900 ：

Have a great day,
TIC

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