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Gowin_PicoRV32 Merge Bit Tool Read Me File
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1. Introduction
   Merge a FPGA fabric bitstream and a MCU C binary into a new bitstream.
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2. Platform
   Windows 7/10/11.
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3. command
   merge_bit.exe bin_file fs_file itcm_size posp_file
     - bin_file  : C binary file.
     - fs_file   : fabric bitstream file.
     - itcm_size : ITCM size (8, 16, 32, 64, 128, 256, 512 KB).
     - posp_file : posp file from PnR.
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4. Files
|-- bin                                   --> Executed file
|--|-- merge_bit.exe                      --> Tool merge bitstream
|-- doc                                   --> Document
|--|-- ReadMe.txt                         --> Read me file
|-- ref_design                            --> Reference design
|--|-- FPGA_RefDesign                     --> FPGA reference design
|--|--|-- ReadMe.txt                      --> Read me file
|--|--|-- gowin_picorv32                  --> FPGA reference design
|--|-- MCU_RefDesign                      --> MCU reference design
|--|--|-- ReadMe.txt                      --> Read me file
|--|--|-- picorv32_load_demo              --> MCU reference design
|-- example                               --> Example
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