Question:
How can NEON support be activated on the ARM A5 core of the ADSP-SC594?
Answer:
To enable NEON on the Cortex-A5 core of the ADSP-SC594, apply the compiler option -mfpu=neon-vfpv4. This option should be entered in the Additional Options section within the CrossCore ARM Bare Metal C Compiler settings.
This compiler flag sets the GCC ARM floating-point unit to neon-vfpv4, enabling the use of the NEON hardware acceleration for floating-point operations on SC5xx processors.
The below screenshot provide guidance on configuring this compiler option.
For further details, consult the CCES Help under:
ARM Development Tools Documentation > Cortex-A > Analog Devices ARM Toolchain Manual > GCC Compiler Additional Features > Additional Compiler Switches.