GAP SDK RELEASE NOTE V4.7.0

New Features

• SDK:
  • Re-orgnisation of SDK
  • Tools reorganization
    • Move tools (efuse, gap_configs, gaptest, gapy, json-tools, littlefs, openocd, openocd_tools, plptest, rules) from gap_sdk/tools to gap_sdk/utils
  • Removed old native examples (examples/natives).
  • Removed old applications.
  • Removed old doc, replaced by new one.
• NNTool:
  • Added support for LUT sigmoid/tanh in fp16
  • unsigned sq8 add
  • rsqrt expressions
  • new dsp functions in expressions
  • Added support for LUT sigmoid/tanh in fp16
• Autotiler:
  • Added DSP Lib in autotiler rules
  • Support for float16 LUT based Sigmoid/Tanh
  • map Hx1 Conv onto 1D as well as Wx1
  • Unsigned SQ8 Add
  • rsqrt DSP functions
  • improved performance in DSP functions
• PULP OS:
  • Added preset_fork

BUG Fixes

• Compiler:
  • Fix wrong vector type used in sign inject and in abs for float16 (https://github.com/GreenWaves-Technologies/gap_riscv_toolchain_ubuntu_18)
• NNTool:
  • gen_project bugfixes
• Autotiler:
  • bugfixes for DSP library and generators:
  • Fixed point fft
  • center padding like librosa
  • bugfix in DSP generator and NE16 conv + pool
  • bugfix in USQ8 reduction act
  • DSP: log offset fix for float16 version
  • Code Gen: Fix in Code generation of tiles copie
  • fp16 activation bug in leftover
  • Fixed SSD non max supression num of total BBs
• FreeRTOS:
  • Update timer and perf driver to reduce footprint
  • Calibrated the performance counter

[Be careful]: Due to the reorg of SDK, please clean and rebuild the SDK:

make clean all