Converts the 128x64 oled boot logo between binary and gif format. Tested with the LinkPi Enc1V3 https://linkpi.cn/archives/2021
python logo_converter.py logo.bin [outputfilename.gif]
python logo_converter.py logo.gif [outputfilename.bin]
If no output-filename is provided, the script will use the input-filename, swapping the extension. If you create your own logo, make sure the image is 128x64 pixels in black and white. The script use an very simple logic to convert any color to black/white values, with out any dithering.
Python 3 with lib Pillow
The binary format encodes a monochrome image with 1-bit pixels. Pixels are arranged in a fixed-width (128 pixels) and fixed-height (64 pixels) grid. The bytes represent 8 consecutive pixels, ordered left-to-right and top-to-bottom. Within each byte, the bits correspond to pixels in a left-to-right sequence. Visualization follows a top-to-bottom and left-to-right order.
check the update.sh file inside of /link/shell inside your device or update_enc1v3_ss524_********.bin file. (you can extract the update-bin-file using 7z or gzip). Something like this:
flash_erase /dev/mtd2 0 0
nandwrite -p /dev/mtd2 /link/update/logo.binCaution
Be very careful! Always double check that this is the correct partition on YOUR device with YOUR current firmware! If you use the wrong partition, you can end up with an non booting device. If you messup the u-boot loader, then your device will be bricked.
MIT License
Copyright (c) 2024 YveIce
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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