- BIOS.rom - A capsule file built by EDK build system.
- SPI0.bin - A binary file dumped from SPI ROM 0 after first booting.
- SPI1.bin - A binary file dumped from SPI ROM 1 after first booting.
The tool BinToImg.py transfers a byte to 8 pixels with black-white color. For example,
Byte = 55h = 01010101
Pixels
= 1 -> 0 -> 1 -> 0 -> 1 -> 0 ->1 -> 0
= 1 -> 0 -> 1 -> 0 -> 1 -> 0 ->1 -> 0
= black, white, black, white, black, white, black, white
We use the below commands to generate PNG files with black-white bit pixels from the input files.
python3 BinToImg.py -w 6000 BIOS.rom
python3 BinToImg.py -w 6000 SPI0.bin
python3 BinToImg.py -w 6000 SPI1.bin
The option -w 6000 means that the tool generates an image of which width is 6000 pixels.
Below are the generated PNG files. I consider any BIOS engineer know what happens by observing these images, especially for BIOS.rom.png and SPI1.bin.png.
BIOS.rom.png
SPI1.bin.png
SPI0.bin.png
-Count
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