Compilation symbols have been introduced to allow to include only the
FFT tables which are useful in a given application.
The README.md in DSP is giving more details.
- new version V1.5.5
- reworked DSP library source files
added macro ARM_MATH_LOOPUNROLL
removed macro UNALIGNED_SUPPORT_DISABLE
relpaced arm_bitreversal2.S with C version
added const-correctness
replaced SIMD pointer construct with memcpy solution
- reworked DSP library documentation
- moved DSP libraries to folder ./DSP/Lib
- ARM DSP Libraries are built with ARMCLANG
- Added DSP Libraries Source variant
The rationale here is that if the caller knows the size FFT they require
at compile time, only the look-up tables required for that size are
placed in the data segment (ROM). This saves between ~40k to ~80k of
ROM when only using a single FFT size.
Christophe Favergeon
Jonatan Antoni
GuentherMartin
Dave Flogeras