FPU in IAR IDE

[manoritesameer]

Posted on June 12, 2014 at 18:22

Hello, 

       I am using the STm32F4 discovery demo board and using the IAR IDE tool chain, Can anyone tell me how to use(enable) the Floating Point unit.

Thanks for ur help.

Regards

Sameer  

[francescatodiego]

Posted on June 12, 2014 at 21:38

1. Project->options

2. general options in the left menu

3.''Target'' tab contain FPU dropdown seleciton list

[Tesla DeLorean]

Posted on June 12, 2014 at 22:24

Remember the FPU only does 32-bit float math, it does not support 64-bit double, or complex functions. Be sure to use the float version of math functions, like sqrtf(), sinf(), cosf(), etc. and constants like 123.4f