Some of the data in the previous attachment had extraneous bytes in the
"====decompressed====" line. I've reattached the cleaned data here.
From: Kruno Peric
Sent: Tuesday, April 30, 2019 10:02 AM
To: 'sbl-devel(a)lists.01.org' <sbl-devel(a)lists.01.org>
Subject: MRC training parameters
We ran some tests on memory training at different temperatures and found some interesting
results. We reflashed the board at -20 C, +50 C and room temperature a few times, read
back the flash and decompressed the MRC parameter data that was stored. We were looking
to see how temperature effects the MRC training parameters. We found that the MRC data
always changes between flashes, even when at the same temperature.
Is there any documentation that would help with interpreting MRC training data? We are
interesting in having a gauge for how stable our training parameters are across different
temperatures. We would like conservative training parameter settings since we will only
train during the first boot, and our product will operate across a variety of
temperatures.
I have attached our compressed and decompressed experiment data which was collected.
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Hi
The MRC training data structure is not public.
We will see if we can get some information regarding differences in the training data
generated on two separate training cycles.
Thanks
Ravi
From: Sbl-devel [mailto:sbl-devel-bounces@lists.01.org] On Behalf Of Kruno Peric
Sent: Tuesday, April 30, 2019 8:12 AM
To: sbl-devel(a)lists.01.org
Subject: Re: [Sbl-devel] MRC training parameters
Some of the data in the previous attachment had extraneous bytes in the
"====decompressed====" line. I've reattached the cleaned data here.
From: Kruno Peric
Sent: Tuesday, April 30, 2019 10:02 AM
To: 'sbl-devel(a)lists.01.org'
<sbl-devel@lists.01.org<mailto:sbl-devel@lists.01.org>>
Subject: MRC training parameters
We ran some tests on memory training at different temperatures and found some interesting
results. We reflashed the board at -20 C, +50 C and room temperature a few times, read
back the flash and decompressed the MRC parameter data that was stored. We were looking
to see how temperature effects the MRC training parameters. We found that the MRC data
always changes between flashes, even when at the same temperature.
Is there any documentation that would help with interpreting MRC training data? We are
interesting in having a gauge for how stable our training parameters are across different
temperatures. We would like conservative training parameter settings since we will only
train during the first boot, and our product will operate across a variety of
temperatures.
I have attached our compressed and decompressed experiment data which was collected.