topic Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ? in i.MX Processors

How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

peteramond — Wed, 15 Feb 2017 05:14:00 GMT

Dear All,

I'm trying to do stress test and RAM calibration for imx6q sbre sdb development board using i.MAX6 DDR Stress test tool V2.60 >> https://community.nxp.com/docs/DOC-105652 <<

When I go through the above link I couldn't understand how should I approach for this as I'm new to this test. So could you please provide me well detailed document for this.

**********************************************************************

>> Option 1 GUI based:

Run the GUI executable and connect your board to the host PC via USB

Archive file: ddr_stress_tester_vX.xx.zip
The tool will first need to run a DDR initialization script for the specified i.MX SoC (refer to Load Init Script in the GUI tool). Example initialization scripts based on NXP's development boards can be found in this zip file under the script folder. Note, these scripts may need to be modified for your custom board and memory. " <<

***********************************************************************

What is GUI executable ?
When I connect SABRE SDB to PC what is the port should I use ? USB OTG or Serial to USB ?
On which hardware should I run GUI executable ? On Sabre SD or host PC ?
Should I run DDR tester.exe on host pc or sabre sdb ?

I must be thankful to you if you will kindly reply me soon.

Regards,

Peter.

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

igorpadykov — Wed, 15 Feb 2017 05:28:30 GMT

Hi Peter

please check presentation on

https://community.nxp.com/docs/DOC-331528

Freescale i.MX6 DRAM Port Application Guide-DDR3 | NXP Community

DDR tester.exe should be run on host pc, use board usb otg port for connection.

Best regards
igor
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Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

oliver_chen — Wed, 15 Feb 2017 06:18:32 GMT

Hi peteramond‌,

1. GUI executable is the PC host side software which is named DDR_Tester.exe

2. For all i.MX platform, the USB OTG port is the only necessary

3. This tool can work for all boards which USB OTG port is available.

4. DDR_Tester.exe is a PC side software.

B.R

Oliver

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

peteramond — Wed, 15 Feb 2017 07:59:25 GMT

Hi igor,

Thank you for the quick response.

I did following steps >>

But when I click "Download" it shows >>

My board is imax6 quad sabre SDB and image running on SD card is " fsl-image-validation-imx-x11-imx6qdlsolo.sdcard" . As well as I connected the sabre SDB to host pc via USB OTG of sabre sdb and then device manager shows NOTHING in user interface. As well as the loaded init script is "MX6Q_SabreSD_DDR3_1GB_64bit.inc"

Please advice on this.

Regards,

Peter.

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

peteramond — Wed, 15 Feb 2017 10:07:52 GMT

Hi igor & Oliver,

#Oliver Chen

#igorpadykov

Thank you for the quick response.

I did following steps >>

But when I click "Download" it shows >>

Please advice on this.

Regards,

Peter.

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

igorpadykov — Wed, 15 Feb 2017 10:42:12 GMT

Hi Peter

no image should be running on board, it should be put to "Serial download mode"
after power-up. DIP switches should be "Serial download mode"- BOOT_MODE0,1= 10,
please check sect.8.2.1 Boot mode pin settings i.MX6DQ Reference Manual
http://cache.freescale.com/files/32bit/doc/ref_manual/IMX6DQRM.pdf
also one can look at Sabre SD schematic
Schematics (1)
i.MX6_SABRE_SDP_DESIGNFILES
http://www.nxp.com/products/software-and-tools/hardware-development-tools/sabre-development-system/sabre-platform-for-smart-devices-based-on-the-i.mx-6-series:RDIMX6SABREPLAT?fpsp=1&tab=Design_Tools_Tab
Also if you are using imx6q, then "Target" should not be MX6UL.

Best regards
igor

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

oliver_chen — Thu, 16 Feb 2017 01:28:50 GMT

Hi peteramond‌,

Please make sure your i.mx6 is under serial download mode and you can find there is a i.mx6 HID device displayed in your PC hardware manager.

B.R

Oliver

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

peteramond — Thu, 16 Feb 2017 09:23:58 GMT

Dear #igorpadykov

Many thanks for your explanation and I'm happy to say that I could successfully do the calibration using sabre sdb board.

I need to clarify some thing on this. When we do the calibration using USB OTG with serial download mode (No OS on board, No SD card & no eMMC access) ; does the host PC access to the NOR FLASH of the sabre sdb ? What are the files inside NOR flash ? If we are going to do the RAM test for custom board do we need to write NOR Flash ? What kind of data should we include to NOR Flash for custom boards which designed by us ?

Regards,

Peter.

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

igorpadykov — Thu, 16 Feb 2017 09:51:42 GMT

Hi Peter

no, NOR FLASH is not used for ddr test

Best regards
igor

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

peteramond — Mon, 20 Feb 2017 09:37:29 GMT

Dear All,

#igorpadykov

#Lisa Hughes,

#Oliver Chen

From where can I find i.MAX6 Quad DDR3 Register Programming Aid ? Can we use the same i.MX 6UL DDR Register Programming Aid for this >> https://community.nxp.com/servlet/JiveServlet/download/329899-3-378909/I.MX6UL_DDR3_Script_Aid_V0.02.xlsx << ?
If I'm going to use i.MAX 6UL Programming Aid I think I should change the Register Configuration table according to the RAM in Sabre SDB.

RAM USED IN SABRE SD >> MT41K128M16JT-125:K

I Edited the Register Configuration as follows >>

But NXP DDR stress tool shows following error message.

Could you please tell me the problem with this error message ? Data sheet for Micron RAM used in Sabre SD >> http://www.micron.com/~/media/documents/products/data-sheet/dram/ddr3/2gb_1_35v_ddr3l.pdf

Please advice on this.

Regards,

Peter.

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

oliver_chen — Mon, 20 Feb 2017 09:45:00 GMT

Hi peteramond‌,

The tool would check the address in your script is valid or invalid if 'Verify DCD Address' is selected in the GUI menu. You can remove the selection to access any address you want.

B.R

Oliver

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

peteramond — Tue, 21 Feb 2017 06:39:59 GMT

Dear #Oliver Chen

Could solve the problem by commenting the following line in scrip >>

//setmem /16 0x020bc000 = 0x30

I got another issue when run the Memory Read/Write

It stuck on highlighted line.

Please advice on this.

Regards,

Peter.

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

oliver_chen — Tue, 21 Feb 2017 08:30:31 GMT

Hi peteramond‌,

For i.MX6DQ, please use 0x10000000 as DDR base address.

B.R

Oliver

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

peteramond — Wed, 22 Feb 2017 04:48:07 GMT

Hi #Oliver Chen

Many thanks and now it is working.

Could you please tell me how can I get full details on this ADDR, DCD address and MR1 value in DDR Calibration for each RAM. Does those things has mentioned in data sheets ?
As well as the RAM USED IN SABRE SD >> MT41K128M16JT-125:K . And the clock frequency is 800MHz But when we put DDR Frequency as 800MHz in DDR calibration the test will fail. And the other thing is Start Frequency and end frequency. Cant we put start frequency as 750MHz and 800MHz ? It only work for up to 528MHz, Why is that ?

Regards and Thanks,

Peter.

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

oliver_chen — Wed, 22 Feb 2017 08:04:25 GMT

Hi peteramond‌,

1. MR1 is the final value you used for DDR chip Mode Register MR1 when exiting from DDR write-leveling calibration operation. You can read DDR datasheet about MR1 definition. DCD address validation is just for DDR related address. If you want to write any address in script, just ignore the option. There is no problem. Don't be confused by it. DDR address range is described in i.MX6 RM memory map chapter, please read it.

2. DDR tool is an expert tool. I suggest you'd better read technical docs about DDR spec and i.MX MMDC controller chapter in RM. About your question, DDR data is triggered by both clock edge: rising edge and falling edge. When we see 800MHz noted in DDR datasheet, it means 800/2=400MHz DDR clock. For i.MX6DQ, the max DDR3 frequency is 533MHz. Don't try 750MHz/800MHz frequency, it doesn't work.

B.R

Oliver

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

peteramond — Thu, 02 Mar 2017 05:32:26 GMT

Hi igorpadykov

Then will the host PC access to iMAX6 Processor Boot ROM ?

Sorry, actually I need to get clear understanding about how DDR calibration and stress test work. I'm okay with its process and now it is working for my development boards. But when I do it for newly designed hardware by my self those information are required.

Regards.

Peter.

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

igorpadykov — Thu, 02 Mar 2017 05:58:10 GMT

Hi Peter

right, during Serial Downloader mode described in Chapter 8 System Boot i.MX6DQ RM,

host PC access to iMX6 Processor Boot ROM, download process is handled by ROM code.

Best regards
igor

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

peteramond — Thu, 02 Mar 2017 06:26:45 GMT

Many thanks for your timely feedback !!

Regards,

Peter.

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

peteramond — Fri, 24 Mar 2017 06:33:18 GMT

Dear #Oliver Chen # igorpadykov

I'm using ddr_stress_tester_v2.60 software for memory calibration of Alliance AS4C256M16D3A-12BCN RAM included i.MAX6 Quad processor based custom hardware design.

This is the script changes for Alliance RAM

But after loading this script when I run the DDR calibration it shows following message.

What is the reason for this issue ? Is it the problem of new hard ware design ?

I must be thankful to you if you will kindly reply me as soon as possible.

Regards,

Peter.

Re: How to run i.MX6/7 DDR Stress Test Tool V2.60 ?

oliver_chen — Fri, 24 Mar 2017 06:58:19 GMT

Hi peteramond‌,

From the log, it tells us hardware board can not pass write-leveling calibration. It may be caused by bad PCB layout or incorrect DDR script setting.

From the device table, it has a 2GB DDR3 RAM with 64bit bus width and ONLY 1 chip select. It is very strange. Can you confirm it?

B.R

Oliver