HiFi_3z_NDSP

• NatureDSP Library for HiFi3 & HiFi3z DSP cores
• The source code is common to both HiFi-3 and HiFi-3Z cores.
• The xws provided supports both HiFi3 and HiFi3z.
• Select the required HiFi-3 or HiFi-3z core for building, in both xws and linux environments.

The repo is organized as follows.

xws:

• Last stable release version of the NDSP contains two xws files.
• An xws each, for the library-kernels and the test-driver. Ex : HiFi3_VFPU_Library_v5_0_0.xws & HiFi3_VFPU_Demo_v5_0_0.xws
• Building and executing the xws in Xtensa Xplorer is described in the API Reference Document.
• Building and executing the source code in linux is described in the https://github.com/foss-xtensa/ndsplib-hifi3z/tree/main/doc.
• Detailed release documentation can be extracted from lib.xws/doc folder.

Release v5.0.0 Brief:

• This is the GitHub release package created with the beta release V5.0.0.

• Release Date : Feb 2025.

• The source code has been updated to make it compatible with RJ-2024.4 tool chain.

• Verification & testing has been done with a very limited number of HiFi-3 (LX6.0.2)and HiFi-3z cores (LX8.0.3), with RJ-2024.4 tool chain

• Sanity testing has been done for backward compatibility on xt-clang using RJ-2024.3 tool chain (LX8.0.3) core for HiFi3z and LX6 cores for HiFI3..

• Known issues:

  • For dct functional regression in -func_brief and -func_full, the test vectors are picked up from the sanity folder.

NDSP_HiFi3z

• This contains the source code (NDSP_HiFi3_v500.zip) along with make files that will build in linux environment.

doc folder

This contains help documentation on how to build the source code in linux and run the performance and functional regressions.