How do I disable FPU of Cortex M4 in IDE project?
The FPU of Cortex M4 is enabled in IDE project by default. However, we can save active current consumption by disabling the FPU if it is not used.
Select [None] instead of [VFPv4 single precision] in [General Options] > [Target] > [Floating point settings] to disable FPU
Select [Not Used] instead of [Use Single Precision] in [Target] > [Code Generation] to disable FPU
For Simplicity IDE:
Uncheck [Enable Hardware Floating Point (-mfpu=)] in [C/C++ Build] > [Settings] > [Tool Settings] > [GNU ARM C Linker] > [General] to disable FPU