This is the official release version 0.2.5 of Nuclei SDK.

• SoC

  • For SOC=hbird, in function _premain_init of system_hbird.c, cache will be enable in following cases:

    • If __ICACHE_PRESENT is set to 1 in hbird.h, I-CACHE will be enabled
    • If __DCACHE_PRESENT is set to 1 in hbird.h, D-CACHE will be enabled

  • All startup and system init code are adapted to match design changes of NMSIS-1.0.1

    • _init and _fini are deprecated for startup code, now please use _premain_init and _postmain_fini instead
    • Add DDR download mode for Hummingbird SoC, which downloaded program into DDR and execute in DDR

• Documentation

  • Fix several invalid cross reference links
  • Rename RVStar to RV-STAR to keep alignment in documentation

• NMSIS

  • Update and use NMSIS 1.0.1
  • Add NMSIS-DSP and NMSIS-NN library for RISC-V 32bit and 64bit
  • Both RISC-V 32bit and 64bit DSP instructions are supported