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-Original Message-
From: Adam Shobash
Sent: Tuesday, April 25, 2017 10:26 AM
To: Rene Straub; Stefan Eichenberger
Cc: Assaf Hoffman; s...@denx.de; u-boot@lists.denx.de
Subject: RE: [EXT] Armada 385: PEX detection pulse width
Hi Rene,
These bits that I have sent changes the pul
Hi Rene,
These bits that I have sent changes the pulse width of the "detection pulse"
during the detect state, and purpose of it is to measure the slew rate of the
common mode voltage change and according to the slew rate it is decided whether
there is a Termination(usually it is the Rx impedan
Hello Adam,
first of all thanks the quick reply. First trials with reduced pulse length,
showed promising results. To better understand the root cause of the problem,
it would be helpful if you explained us briefly what the register change
actually performs. I/we understand that the problem is
Hi Stefan,
In A385, the register to change the pulse width is 0xa0120 bits[7:6].
Default value is 0x1(pulse width=2us) , you can try and change it to 0x0 to see
if it solves the issue.
But, please note that we tested our platforms with the value 0x1 only and we
cannot guarantee that after you c
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