[flashrom] [PATCH] Add support for S25FL128P and S25FL128P......0 chips.

Stefan Tauner stefan.tauner at alumni.tuwien.ac.at
Sat Jun 14 20:13:21 CEST 2014


On Sat, 14 Jun 2014 13:50:49 -0400
Liviu Toma <liviu.toma at gmail.com> wrote:

> This seems quite random, so I am not sure what's going on.

I think that is exactly what is going on: broken communication that
results in random outages and this "funny" behavior.

> Before the first operation, I did a full erase, would the detect not work
> if the chip is erased ?

No, that has nothing to do with each other.

>>> In that case I would ask you how the
>>> chip is connected exactly, especially how WP# and HOLD# are driven.

It is very important that all input pins of the flash chip are
connected to a defined level but many people dont know that. Is it
well connected in your case? Noise on an unconnected hold pin is about
the number one of reasons for such erratic behavior. 
-- 
Kind regards/Mit freundlichen Grüßen, Stefan Tauner




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