topic Re: DDR Calibration on i.MX53 - REVISTED in i.MX Processors

DDR Calibration on i.MX53 - REVISTED

ScottKerstein — Tue, 15 Dec 2015 20:01:57 GMT

Hello,

This posting is regarding a previous post:

https://community.freescale.com/message/418938#418938

That post is relevant to my problem, but does not have the complete answer.

It says that we have to make a program that runs the calibration routines (calibration.c) in IRAM. It also points to processor expert for Imx53, which does not seem to work as per the post.

The steps are not very clear about making the program and running it in IRAM. I will appreciate, if you could offer a little more guidance.

I know, there is StressTester.exe which we use to do ddr stress test. However, I need an application (or source) to run the calibration and get the proper values for some production boards in the field that are acting strangly.

I have some routines I got from Application Note (AN4466), but I am not sure how can I run those routines. These routines are supposed to be run in CPU ram, so obviously there has to be an application on PC that connects to IMX53 using USB and run these routines.

Thanks for your help in advance,

Scott

Re: DDR Calibration on i.MX53 - REVISTED

igorpadykov — Wed, 16 Dec 2015 01:44:37 GMT

Hi Scott

one can use jtag:

i.MX53 Memory Calibration Script (AN4466)

or use attached example (add own codes) with ATK

Best regards

igor

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Re: DDR Calibration on i.MX53 - REVISTED

TomE — Sun, 03 Jan 2016 02:10:41 GMT

I can help you with this. I've done a lot of work with the stress tester.

Read my posts in this thread:

i.MX536: DDR Stress test failed when the temperature of DDR increase upper to 80 degree

How do we send private messages in this "community"? I can't find how to do that.

Right. I can't send you a message because you aren't my "friend" and you're not "following" me.

So if you "follow" me I'll be able to send you a message.

Tom

Re: DDR Calibration on i.MX53 - REVISTED

TomE — Fri, 29 Jan 2016 01:18:03 GMT

Like I said, if you FOLLOW me I'll be able to help - by sending a working version of the Stress Test you can load over Ethernet and run.

I've "followed" you, so you can send me a message.

Tom