FPU Type options for MCUXpresso for double-precision floating point

[Hat]

How do I choose a double precision hardware FPU in the MCUXpresso project settings?

The FPU type selectors are confusing and does not seem to match with ARM documentation.

I need hardware double-precision floating point.

On Arm's documentation, the option for double precision is given as FPv5-DP-D16-M, and the MCUXpresso does not let me choose that.

Thanks

[nickwallis]

Perhaps also check the actual compiler command line being used, I think you need both -mfpu=fpv5-d16 and -mfloat-abi=hard.

-Nick

[mjbcswitzerland]

Hi

is correct for i.MX RT parts with double-precision FPU.

For those with only single-precision (i.MX RT 1011) the FPv5-SP16(Hard ABI) can be used instead.

Regards

Mark
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