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Gowin_EMPU(GW1NS-4C) SDK Release Note File
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Release Note
  * Download from https://www.gowinsemi.com/en/
      - Gowin_EMPU(GW1NS-4C) Software and Hardware Reference Design Release Note.pdf
  * Download from http://www.gowinsemi.com.cn/
      - Gowin_EMPU(GW1NS-4C)软件和硬件参考设计发布说明.pdf
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Version 1.0
  (1) Initial version.
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Version 1.1
  (1) Support AHB PSRAM Memory Interface;
  (2) Support AHB HyperRAM Memory Interface;
  (3) Support APB SPI_Nor_Flash;
  (4) GPIO supports multi-type ports;
  (5) I2C supports multi-type ports;
  (6) Upgrade software version and software development kit.
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Version 1.1.1
  (1) Support MCU continuation address read.
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Version 1.1.2
  (1) Fixed known SPI issues;
  (2) Remove synthesis tool "SynplifyPro";
  (3) Update the encryption algorithm to 2.0.
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Version 1.1.3
  (1) Fixed known issues of BlockRam WRE;
  (2) Support RTOS RT-Thread (Nano);
  (3) Add some solutions.
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Version 1.2
  (1) Fixed known issues of ports name;
  (2) Fixed known issues of SPI clock divider;
  (3) Support RT-Thread Nano;
  (4) Update MCU IP, optimize logic resources;
  (5) Update software development kit.
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Version 2.0
  (1) Improve system frequency and performance;
  (2) Update software programming library and reference design;
  (3) Update hardware reference design.
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Version 2.1
  (1) Update SPI Flash peripheral driver functions;
  (2) Update GPIO peripheral driver functions;
  (3) Update reference designs for new GMD IDE;
  (4) Add reference design of code coverage function;
  (5) Add reference design of profiling function;
  (6) Add reference design of fifo peripheral;
  (7) Add reference design of user interrupts;
  (8) Add reference design of AHB2 slave interface.
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Version 2.2
  (1) Fixed the known issues of user interrupts.
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