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        "author": "David Carne",
        "author_email": "davidcarne@gmail.com",
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            "License :: OSI Approved :: BSD License",
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        "description": "# Lattice iCEBlink40 Programming Tool\n\nThe Lattice iCEBlink40 is a low-cost FPGA board (currently $50 cad) supporting the iCE40 LP/HX families. While the iCEcube programming software on linux supports the chips, it doesn't ship with a port of iceutil.exe to program the board itself. This is an open-source tool, licensed under GPL2, to allow for programming of the FPGA board from linux. \n\nThis script has only been tested by the author with the iCEblink40-LP1K board, with the M25P10VP flash. Other users have reported that it works with the HX1K flavour boards.\n\nThis tool was created from black-box inspection of the USB datastream between a VM running iceutil and the iCEblink40-LP1K evaluation board. No binary analysis, binary reverse engineering or disassembly was used during the creation of this tool; all information in this file was derived from black-box analysis.\n\nThe iCEBlink boards only support programming of the flash memory used to boot the FPGA. Direct SPI programming of the FPGA does not appear to be possible.\n\n# Requirements:\n\n- python 3 or newer\n- pyusb 1.0 or newer\n\n# Usage \n\n## iCEburn.py\n\nThe main flash programming tool is iCEburn.py. It supports two operation flags, `-e` for erase, and `-w` for write. The most common usage is:\n\n\n`./iCEburn.py -ew path\\_to\\_build.bin`\n\n\n## regtool.py\n\nRegtool is an example test script to poke at registers via the FPGA data link. The argument\n\n    -r 0xAB\n\nwill do a read of register 0xAB and print the result to the console. The argument\n\n    -w 0xAB:0xCD\n\nwill write register 0xAB with value and print the result to the console. With the stock FPGA firmware\n\n    ./regtool.py -w 5:0x48\n\nwill stop the scrolling pattern and fix LED3 on.\n\nRegtool is primarily intended as an example of API usage, and not as a production grade tool.\n\n\n# Bugs\n\n- If using old versions of pyUSB, you may get an error:\n\n    AttributeError: \"'NoneType' object has no attribute 'libusb_exit'\"\n\nThis is a bug in pyusb.\n\n\n# TODO\n\n- Add additional flash devices\n\n\n\n",
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        "license": "BSD",
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