Is there a schematic anywhere for the P2020RDB?

[robertlindley]

We are having a cold temperature (-20C) issue with our P2020 - DDR2 interface. I want to look at the reference design to see if we missed any series termination resistors and etc. I would also like to see the register settings for the board. The interesting thing is that some boards work and some don't. I found that is I take a power resistor and just heat the P2020 the board works down to -40C. I'm thinking that either a register delay setting isn't right or we have a signal integrity issue. The schematic and register settings would give me a place to start.

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[andrei_skok]

Hello,

Sorry, but the information you are requesting is treated as confidential info at this time and requires a signed NDA (Non-Disclosure Agreement). Naturally, we cannot discuss this with you in public anyway, this requires to be handled as a Service Request (SR). Be aware that to give you remote support through a SR, we will still need the confirmation of a Freescale employee that the NDA is in place. If you want to go this route, the next steps will be: If you have already signed a NDA agreement for this product, please contact the person who assisted you or create a SR and name us a Freescale person that can confirm this. If you have not signed an agreement, please contact your local Freescale Distributor Salesperson or FAE for assistance. For a listing of our distributors, refer to: http://www.freescale.com/webapp/sps/site/overview.jsp?code=DISTRIBUTORS

I have created SR 1-3666244271 on behalf of you for this request.

Have a great day,
Andrei

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[lunminliang]

Hi,

There is schematic for P2020RDB, you may refer to below thread for this:

for LS1020A/LS1021A are we able to get Schematic and Design layout files for CPU/DDR ?

For the DDR settings of P2020RDB, there is also examples in the initialization file in CW installation directory:

C:\Freescale\CW_PA_v10.4.0\PA\PA_Support\Initialization_Files\QorIQ_P2

Have a great day,
Lunmin

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