Lines Matching +full:fast +full:- +full:plus

1 .. zephyr:code-sample:: number_crunching
9 Number crunching sample does vector operations, Fast Fourier Transformation and filtering.
17 .. code-block:: cmake
27 filtering (Fast Fourier Transform (FFT)) or echo cancellation (Least Mean Square (LMS) filter
32 - :file:`main.c`: calls the generic math functions;
33 - :file:`math_ops.c`: executes the math functions, computes the cycles it took to execute and check…
34 - :file:`cmsis_dsp_wrapper.c`: calls the exact math functions from CMSIS-DSP if :kconfig:option:`CO…
35 - :file:`nature_dsp_wrapper`: if ``LIB_LOCATION`` is defined and points to an out of tree location …
42 CMSIS-DSP is an optional module and needs to be added explicitly to your Zephyr workspace:
44 .. code-block:: shell
46    west config manifest.project-filter -- +cmsis-dsp
47    west update cmsis-dsp
49 NatureDSP can be taken from Github: https://github.com/foss-xtensa/ndsplib-hifi4/tree/main.
56 from NXP i.MX8M Plus board, run:
58 .. zephyr-app-commands::
59    :zephyr-app: samples/boards/nxp/adsp/number_crunching/
64 An output example, for CMSIS-DSP is:
66 .. code-block:: console
68 	*** Booting Zephyr OS build v3.7.0-2815-g9018e424d7a1 ***
73 	[Backend] CMSIS-DSP module
78 	[Backend] CMSIS-DSP module
83 	[Backend] CMSIS-DSP module
87 	[Library Test] == Fast Fourier Transform on Real Data test  ==
88 	[Backend] CMSIS-DSP module
89 	[Library Test] Fast Fourier Transform on Real Data takes 67956 cycles
90 	[Library Test] == Fast Fourier Transform on Real Data test end ==
92 	[Library Test] == Bi-quad Real Block IIR test  ==
93 	[Backend] CMSIS-DSP module
94 	[Library Test] Bi-quad Real Block IIR takes 506702 cycles
95 	[Library Test] == Bi-quad Real Block IIR end ==
98 	[Backend] CMSIS-DSP module
104 .. code-block:: console
106 	*** Booting Zephyr OS build v3.7.0-2815-g9018e424d7a1 ***
125 	[Library Test] == Fast Fourier Transform on Real Data test  ==
127 	[Library Test] Fast Fourier Transform on Real Data takes 3338 cycles
128 	[Library Test] == Fast Fourier Transform on Real Data test end ==
130 	[Library Test] == Bi-quad Real Block IIR test  ==
132 	[Library Test] Bi-quad Real Block IIR takes 13501 cycles
133 	[Library Test] == Bi-quad Real Block IIR end ==