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Hacking a Dell power adapter  final (not really)

With this project, you power adapter will be reporting false information which may not match the original design. This may cause severe results such as file or damaging your laptop. Do it on your own risk!!! As I mentioned in my previous post, there are at least two ways fixing the unidentified power adapter issue, and I chose the hard way, which is simulating how DS2502 works using a micro controller. This is all about learning one wire protocol and I did learnt a lot. I think the most important thing is timing, with a uC working at 16Mhz or 8Mhz, you need to carefully counting how many cycles your interrupt routine takes and providing the logical level in time. And different optimization results between release vs debug configuration also needs to be taken into account.”

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