NMSIS DSP API

If you want to access doxygen generated NMSIS DSP API, please click NMSIS DSP API Doxygen Documentation.

• Examples
  • Bayes Example
  • Class Marks Example
  • Convolution Example
  • Dot Product Example
  • Frequency Bin Example
  • FIR Lowpass Filter Example
  • Graphic Audio Equalizer Example
  • Linear Interpolate Example
  • Matrix Example
  • Signal Convergence Example
  • SineCosine Example
  • SVM Example
  • Variance Example
• Basic Math Functions
  • Vector Absolute Value
  • Vector Addition
  • Vector bitwise AND
    • riscv_and_u8()
  • Elementwise clipping
  • Vector Dot Product
  • Vector Multiplication
  • Vector Negate
  • Vector bitwise NOT
  • Vector Offset
  • Vector bitwise inclusive OR
  • Vector Scale
    • riscv_scale_q31()
  • Vector Shift
  • Vector Subtraction
  • Vector bitwise exclusive OR
• Bayesian estimators
• Complex Math Functions
  • Complex Conjugate
  • Complex Dot Product
  • Complex Magnitude
  • Complex Magnitude Squared
  • Complex-by-Complex Multiplication
  • Complex-by-Real Multiplication
• Controller Functions
  • Sine Cosine
  • PID Motor Control
    • riscv_pid_instance_q15
    • riscv_pid_instance_q31
    • riscv_pid_instance_f32
  • Vector Park Transform
  • Vector Inverse Park transform
  • Vector Clarke Transform
  • Vector Inverse Clarke Transform
• Distance Functions
  • Float Distances
    • Bray-Curtis distance
    • Canberra distance
    • Chebyshev distance
    • Cityblock (Manhattan) distance
    • Correlation distance
    • Cosine distance
    • Dynamic Time Warping Distance
    • Euclidean distance
    • Jensen-Shannon distance
    • Minkowski distance
  • Boolean Distances
• Fast Math Functions
  • ArcTan2
    • riscv_atan2_q15()
  • Cosine
  • Fixed point division
  • Sine
  • Vector Exponential
  • Vector Log
  • Square Root
    • riscv_sqrt_q31()
    • riscv_sqrt_q15()
• Filtering Functions
  • High Precision Q31 Biquad Cascade Filter
  • Biquad Cascade IIR Filters Using Direct Form I Structure
  • Biquad Cascade IIR Filters Using a Direct Form II Transposed Structure
  • Convolution
  • Partial Convolution
  • Correlation
  • Finite Impulse Response (FIR) Decimator
    • riscv_fir_decimate_fast_q15()
  • Finite Impulse Response (FIR) Filters
  • Finite Impulse Response (FIR) Lattice Filters
  • Finite Impulse Response (FIR) Sparse Filters
  • Infinite Impulse Response (IIR) Lattice Filters
  • Levinson Durbin Algorithm
  • Least Mean Square (LMS) Filters
  • Normalized LMS Filters
  • Finite Impulse Response (FIR) Interpolator
• Interpolation Functions
  • Bilinear Interpolation
    • riscv_bilinear_interp_f16()
    • riscv_bilinear_interp_f32()
    • riscv_bilinear_interp_q15()
    • riscv_bilinear_interp_q31()
    • riscv_bilinear_interp_q7()
  • Linear Interpolation
    • riscv_linear_interp_f16()
    • riscv_linear_interp_f32()
    • riscv_linear_interp_q15()
    • riscv_linear_interp_q31()
    • riscv_linear_interp_q7()
  • Cubic Spline Interpolation
• Matrix Functions
  • Householder transform of a vector
  • Matrix Addition
  • Cholesky and LDLT decompositions
  • Complex Matrix Multiplication
  • Complex Matrix Transpose
  • Matrix Initialization
    • riscv_mat_init_q7()
  • Matrix Inverse
    • riscv_mat_solve_lower_triangular_f16()
    • riscv_mat_solve_lower_triangular_f32()
    • riscv_mat_solve_upper_triangular_f16()
    • riscv_mat_solve_upper_triangular_f32()
  • Matrix Multiplication
  • QR decomposition of a Matrix
  • Matrix Scale
  • Matrix Subtraction
  • Matrix Transpose
  • Matrix Vector Multiplication
• Quaternion Math Functions
  • Quaternion conversions
    • Quaternion to Rotation
    • Rotation to Quaternion
  • Quaternion Conjugate
  • Quaternion Inverse
  • Quaternion Norm
  • Quaternion normalization
  • Quaternion Product
    • Elementwise Quaternion Product
    • Quaternion Product
• Statistics Functions
  • Absolute Maximum
    • riscv_absmax_f16()
    • riscv_absmax_f32()
    • riscv_absmax_no_idx_f16()
    • riscv_absmax_no_idx_f32()
    • riscv_absmax_no_idx_q15()
    • riscv_absmax_no_idx_q31()
    • riscv_absmax_no_idx_q7()
    • riscv_absmax_q15()
    • riscv_absmax_q31()
    • riscv_absmax_q7()
  • Absolute Minimum
    • riscv_absmin_f16()
    • riscv_absmin_f32()
    • riscv_absmin_no_idx_f16()
    • riscv_absmin_no_idx_f32()
    • riscv_absmin_no_idx_q15()
    • riscv_absmin_no_idx_q31()
    • riscv_absmin_no_idx_q7()
  • Accumulation functions
  • Entropy
  • Kullback-Leibler divergence
  • LogSumExp
  • Maximum
  • Mean
  • Minimum
  • Mean Square Error
  • Power
  • Root mean square (RMS)
  • Standard deviation
  • Variance
• Support Functions
  • Typecasting
  • Barycenter
  • Vector sorting algorithms
  • Vector Copy
  • Convert 16-bit floating point value
  • Convert 64-bit floating point value
  • Vector Fill
  • Convert 32-bit floating point value
  • Convert 16-bit fixed point value
  • Convert 32-bit fixed point value
  • Convert 8-bit fixed point value
  • Weighted Average
• SVM Functions
  • Linear SVM
  • Polynomial SVM
  • RBF SVM
  • Sigmoid SVM
• Transform Functions
  • Complex FFT Functions
    • Complex FFT Tables
    • Complex FFT F16
    • Complex FFT F32
    • Complex FFT F64
    • Complex FFT Q15
    • Complex FFT Q31
    • Deprecated Complex FFT functions
  • DCT Type IV Functions
    • DCT Type IV Tables
    • DCT4 F32
    • DCT4 Q15
    • DCT4 Q31
  • MFCC
    • MFCC F32
    • MFCC F16
    • MFCC Q15
    • MFCC Q31
  • Real FFT Functions
    • Real FFT F16 Functions
    • Real FFT F64 Functions
    • Real FFT Q15 Functions
    • Real FFT Q31 Functions
    • Real FFT Tables
    • Real FFT F32 Functions
    • Deprecated Real FFT Functions
• Window Functions
  • Flat-top window functions
    • Hft116d window function (116.8 dB)
    • Hft144d window function (144.1 dB)
    • Hft169d window function (169.5 dB)
    • Hft196d window function (196.2 dB)
    • Hft223d window function (223.0 dB)
    • Hft248d window function (248.4 dB)
    • Hft90d window function (90.2 dB)
    • Hft95 window function (95.0 dB)
  • Regular window functions
    • Bartlett window function (26.5 dB)
    • Blackman Harris window function (92 dB)
    • Hamming window function (42.7 dB)
    • Hanning window function (31.5 dB)
    • Nuttall3 window function (46.7 dB)
    • Nuttall3a window function (64.2 dB)
    • Nuttall3b window function (71.5 dB)
    • Nuttall4 window function (60.9 dB)
    • Nuttall4a window function (82.6 dB)
    • Nuttall4b window function (93.3 dB)
    • Nuttall4c window function (98.1 dB)
    • Welch window function (21.3 dB)
• Generic Types
  • riscv_status
    • RISCV_MATH_SUCCESS
    • RISCV_MATH_ARGUMENT_ERROR
    • RISCV_MATH_LENGTH_ERROR
    • RISCV_MATH_SIZE_MISMATCH
    • RISCV_MATH_NANINF
    • RISCV_MATH_SINGULAR
    • RISCV_MATH_TEST_FAILURE
    • RISCV_MATH_DECOMPOSITION_FAILURE
  • q7_t
  • q15_t
  • q31_t
  • q63_t
  • float32_t
  • float64_t