i.MX Processors中的主题 Re: DDR3 Porting Problem on imx6ULL

DDR3 Porting Problem on imx6ULL

guochgz — Mon, 29 Jul 2019 03:19:29 GMT

hello,

I am using SkHynix H5TC2G63GFR-PBI DDR3 on imx6ull, there is some question about DDR3 Porting, Is there someone can help me? thanks first.

Q1: Is there a special DDR3_Script_Aid tools for imx6ull? I have download a imx6ul aid that the name is <I.MX6UL_DDR3_Script_Aid_V0.02.xlsx> from this community

https://community.nxp.com/docs/DOC-329899

. is this ok?

Q2: how to setup DDR3_Script_Aid? there are some item which I have no idea.

Device Information
Manufacturer:	Micron	SKhynix
Memory part number:	MT41K256M16HA-125	H5TC2G63GFR-PBI
Memory type:	DDR3-1600	DDR3-1600
DRAM density (Gb)	4	2
DRAM Bus Width	16	16
Number of Banks	8	8
Number of ROW Addresses	15	14
Number of COLUMN Addresses	10	10
Page Size (K)	2	2
Self-Refresh Temperature (SRT)	Extended	Extended
CAS READ latency (CL)	8	?	Programmable CAS latency 6, 7, 8, 9, 10, 11, 12 and 13 supported
tRCD=tRP=CL (ns)	13.75	?
tRC Min (ns)	48.75	50.625
tRAS Min (ns)	35	37.5
System Information
i.Mx Part	i.MX6UL	iMX6ULL
Bus Width	16	16
Density per chip select (Gb)	4	2
Number of Chip Selects used	1	1
Total DRAM Density (Gb)	4	2
DRAM Clock Freq (MHz)	400	400
DRAM Clock Cycle Time (ns)	2.5	1.25?
Address Mirror (for CS1)	Disable	Disable
SI Configuration
DRAM DSE Setting - DQ/DQM (ohm)	48	48
DRAM DSE Setting - ADDR/CMD/CTL (ohm)	48	48
DRAM DSE Setting - CK (ohm)	48	48
DRAM DSE Setting - DQS (ohm)	48	48
System ODT Setting (ohm)	60	60

Q3: the last one about NXP DDR Test tool , What is the Value about MR1 Values(Hex)?

Re: DDR3 Porting Problem on imx6ULL

Yuri — Tue, 30 Jul 2019 06:56:48 GMT

Hello,

Customers can use the following tool:

“i.MX6ULL_DDR3_Script_Aid”

https://community.nxp.com/docs/DOC-333791

MR1 value should be the same as in the initialization script.

Have a great day,

Yuri.

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Re: DDR3 Porting Problem on imx6ULL

guochgz — Tue, 30 Jul 2019 07:18:32 GMT

Thanks Yuri.

"MR1 value should be the same as in the initialization script." What does this mean?

I have found this in ddr stress tools dir.

so MR1 Value should be 0004?

Re: DDR3 Porting Problem on imx6ULL

Yuri — Wed, 31 Jul 2019 01:59:15 GMT

Correct - 4.

~Yuri.