init
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Steven Dan
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lib_dsp/CHANGELOG.rst
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lib_dsp/CHANGELOG.rst
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DSP library change log
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======================
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6.3.0
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-----
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* ADDED: Support for XCommon CMake build system
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* Changes to dependencies:
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- lib_logging: 3.0.0 -> 3.2.0
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6.2.1
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-----
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* CHANGED: Jenkinsfile used for CI
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6.2.0
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-----
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* CHANGED: Use XMOS Public Licence Version 1
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* CHANGED: dsp_vector_abs function to always return positive values
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6.1.0
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-----
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* ADDED: Support for XS3 architecture
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6.0.2
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-----
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* CHANGED: use XS2 version of platform-specific functions on XS3
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* CHANGED: Pin Python package versions
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* REMOVED: not necessary cpanfile
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6.0.1
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-----
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* CHANGED: Updated generate_window.py to work with Python 3
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* CHANGED: Updated to use Jenkins shared library 0.14.1
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6.0.0
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-----
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* ADDED: vector add, sub and mul functions for int8, int16 and int32 in both
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fixed and block floating point.
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* CHANGED: Functions re-implemented in C, requires the use of unsafe pointers
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if called from XC
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* Changes to dependencies:
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- lib_logging: Added dependency 3.0.0
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5.0.0
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-----
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* CHANGED: Build files updated to support new "xcommon" behaviour in xwaf.
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4.2.0
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-----
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* Added dsp_ch_pair_t struct to represent channel pairs
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* Added floating point biquads
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* Changed implementation of biquads to be faster and smaller
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* Added use of pipenv to set up python environment
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4.1.0
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-----
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* Added post-FFT Hanning windowing
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* Added function to combine real and imaginary arrays into complex array
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* Added function to split complex array into real and imaginary arrays
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* Added 48-point DCT
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* Added dsp filter FIR add sample
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* Added softplus
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* Added integer sqrt
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* Documentation updates
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4.0.0
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-----
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* Removed synchronous sample rate conversion functions - now maintained in
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lib_src
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* Fixed bug in dsp_vector_mulv_addv()
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* Faster bit reverse and inverse FFT
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* Added real FFT
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* Added real reverse FFT
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* Added FFT with top half blanked
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* Logistics functions
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* Block floating point functions
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* Complex FIR
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* Complex vector arithmetic, with optional scaling
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* Added in-place complex vector scaling
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* Added complex vector magnitude
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* Added complex vector scaling with arithmetic shift
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* Added complex negative multiply and accumulate
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3.1.0
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-----
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* Deprecated synchronous sample rate conversion functions - now maintained in
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lib_src
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* Added functions to compute a fast fixed point atan2 and hypotenuse
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* Added Q8 versions of the arc sine and arc cosine functions
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* Added 16384 point sine table
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* Improved performance of the forwards FFT function, with small reduction in
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memory footprint
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3.0.0
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-----
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* Added exponential and natural logarithm functions
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* Added Hyperbolic sine and cosine
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* Fixed Matrix Multiplication and improved performance
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* Changed API prefix from ``lib_dsp_`` to ``dsp_``.
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* Changed lib_dsp_fft_complex_t to dsp_complex_t and
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lib_dsp_fft_complex_short_t to dsp_complex_short_t
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* Various fixes in API documentation
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* Added complex vector multiplication
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* Added synchronous sample rate conversion (downsample or upsample by factor
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3)
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2.0.0
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-----
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* FFT interface update. Consolidated interface and improved testing.
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* Halved the memory for processing two real signals with a single complex FFT.
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* Renamed \*_transforms to \*_fft to improve naming consistency
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* Improved performance and accuracy of dsp_math_sqrt. Error is <= 1. Worst
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case performance is 96 cycles.
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* int32_t and uint32_t now used more consistently.
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1.0.4
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-----
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* Added fixed point sine and cosine functions. Performance: 62 cycles for
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dsp_math_sin, 64 cycles for dsp_math_cos.
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* Brute force testing of all input values proved accuracy to within one LSB
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(error is <= 1)
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* Added short int complex and tworeals FFT and iFFT
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* Improved Macros for converting from double to int and int to double.
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* Added optimised fixed point atan function dsp_math_atan
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* Most tests in math_app.xc are now self-checking. Improved error reporting.
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* Option for performance measurements in 10ns cycles.
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1.0.3
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-----
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* Update to source code license and copyright
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1.0.2
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-----
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* FFT and inverse FFT for two complex short int signals
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1.0.1
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-----
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* FFT and inverse FFT for complex signals or two real signals.
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1.0.0
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-----
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* Initial version
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