Quote:
Originally Posted by HarryT
Are you saying that you can fix any Kindle such that it will remember the waveform data correctly following a reboot?
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I think the poster said that it might be possible.
Conditions:
1) Have waveform data that works with the screen.
2) Modify the system to use the waveform data store elsewhere than on the cable prom (some early Kindle models did not have a cable prom).
3) Find a place to store the waveform data (there may be room on the main flash, outside of the partitioned areas, for the 128Kbyte file).
Problems:
On (1) - waveform data files for some models of the screens has not yet been determined.
On (2) - Find where the hardware is initially programmed:
A) If in u-boot - we may be able to change that, we know how to replace u-boot.
B) If in the kernel's initramfs system - that one is signed, we have not tackled the chore of changing those contents.
C) If in the kernel's run-time system - that one we have been bending out of shape for years.
On (3) - That one is the easiest to do, those areas are pretty well known here.
@HarryT: At least the above is my reading of the post and the linked engineering documents are good background information.
There is no shortage of engineering skills among our members here, but I still wouldn't hold my breath, waiting for someone to solve this challenge.